131ci Stage IV Lowrider S / Build / Dyno / Stage 4 Harley / Milwaukee 8 / Series / Before & After

In this video series I will be building the 'bolt on' 131ci Screamin Eagle stage 4 kit. Once the build is complete & I'm happy with the dyno results I will be making a camshaft swap to the Cyclerama 512 that has been specifically designed for the SE 131ci Engine.
This video is part 1, I take you through a complete time lapse of the engine assembly/build process then, fit up the D&D Fatcat 2-1 exhaust system & get it on the dyno.
I talk through some of the differences between a drop in base map & then a tune that I have done to suit the bike. Trimming the fuel & VE Tables makes a huge difference to the HP & TQ curves as you will get to see first hand.
I was actually surprised at how much power the bike made on the drop in tune, but obviously I wasn't going to leave it that LEAN!!!!
Harley-Davidson & Screamin Eagle have come out swinging with this engine combo!!! The power & torque available is amazing.
I can't wait for to get the Cyclerama 512 Camshaft into this monster because I know for sure we'll be making MORE POWER!!!! Wes Brown really knows his Cams & I for one will vouch for just how SOLID & BROAD the torque curves are from his cam grinds, not mention the power curves that just keep going UP TO THE MOON!
Stay tuned for Part 2 of this build when the cam goes in.
Subscribe & GET THAT BELL ON so you DON'T MISS OUT!
Hit me up on Instagram : tommy_twincam_m...
Darling Downs Harley-Davidson ddhd.com.au

[@emilymiller8306]

Awesome vid, Tommy. I learn so much from your videos too! I’m really looking forward to part 2. Will be great to see the bike out on the road. Thanks again, love it!

[@mchristr]

Tommy, just found your channel. I'm about to step up from a Twin Cam to the M8 Softail. Thanks for taking the time to make the videos.

[@stevemathers2038]

I subscribed about 3 seconds into the video!! Good job Mate. Can't wait for the cam install.

[@MasterTechMiller]

🍻💪😎 cheers mate!

[@MasterTechMiller]

Part 2 is up now!

[@dextersuarez9948]

Amazing work you are doing here, I’ve been dying to see this done before I make my own investments towards a 131 on my own Low Rider S. Thank you!

[@MasterTechMiller]

Thanks mate! I can't wait to swap out the SE cam to the Cyclerama Cam. It will be so much better! Video should be uploaded within a couple weeks!

[@DanielTojcic]

Awesome! Really like this bike

[@k9m42]

Beautiful build! That air filter looks so much better than those obnoxious heavy breathers that stick out.

[@jjs8046]

Great video!

[@chroniclesofnanner9543]

I can’t wait to see how it performs once you throw some goodies at it

[@happylucky29]

Dream bike. A dream that may be obtainable.

[@alkhaili7]

Good job 👍🏼

[@johncleeton8588]

Cool video Tom...

[@MasterTechMiller]

Cheers mate!

[@Eastsi9e]

Hold on tight that’s a lot of horses and torque in that kit

[@fxrst_anvers6976]

Awesome 👏

[@Josh-ew1le]

Whoa 50+ horsepower from the kit that's way more then I was expecting. Great build thanks for sharing. Cheers from California!

[@MasterTechMiller]

No worries mate!!! I'm very excited for part 3!!!

[@Josh-ew1le]

@@MasterTechMiller Me too, can't wait!

[@simon.houseaccount4807]

This is nice

[@thomastuorto9929]

Interesting. I'll watch Parts 2 & 3 also at some point. How does the big bore kits effect the engine temps? Also is the HD oil pump upgrade I see in the parts catalogue recommended? Thanks for the vid. Personally, I think 114 is plenty. I would love to focus on the breathing & fuel performance with thie 114" displacement. High compression is alright if the bike will be long term reliable & can just cruise also around also.= for me!

[@jaimeereynolds982]

God I wish you were an Indian tech brother 😝 so darn talented 👏🏻

[@MasterTechMiller]

Hahaha Cheers Renny!

[@michaelscott7482]

GREAT channel, I learn a lot from your videos. Thank You! Have two questions. Does the D&D FatCat and D&D LowCat sound similar, do you like one sound over the other? Also, between the FatCat and LowCat, what pipe do you think will perform better on a 2020 Low Rider S 114 Stage 2 with a S&S 475C cam?

[@MasterTechMiller]

The Lowcat would be better suited to the 114ci as it's slightly smaller diameter at the collector. That being said it worked great on my last 128ci Lowrider S. Personally I like the sound better from the Lowcat, not to mention the clearance benefits from the Lowcat.

[@sbutcher222]

Watched a lot of dyno video on this bike, yours shows you are definitely a master tech. Most confident in your ability, others don't compare you pulled a lot of hp and torque .....doing same set up with d&d exhaust what tuner did you use ?

[@MasterTechMiller]

Thanks mate! Yeah there is a lot involved with putting together a good tune.

[@ripper-wrench]

Cycle Rama did a 88 to 95 cid cams and port work on a 2006 Street Bob for me, no one liked riding with us, we had the only 6 speed. I think it made 114hp dyno. Cycle Rama probably two miles from my house. I put 30k on that bike in 16 months. I'm looking at the white 2021 Street Bob now. I really like the white. I'm thinking about it, just don't wanna get addicted again.

[@MasterTechMiller]

It's a very slippery slope thats for sure when you get tangled up with HP. That's so lucky living that close to Wes and the team at Cyclerama 💪 That would be VERY dangerous lol

[@ripper-wrench]

@@MasterTechMiller I took that thing over there, Wes banged it out in a few days, I picked it up and ripped the shit out of it 25k miles, never missed a beat, never lost a race either. I was addicted to riding, I thought for the performance he gave the bike was inexpensive. Hopefully I can keep it down to 5k a year this time. BTW nice build on the Low rider sounds great sir.

[@MasterTechMiller]

@@ripper-wrench that's the exact result I aim to give EVERY customer I build an engine for. Great to hear you enjoyed riding it every single time! These new M8 engines don't really require too much modification compared to the Twin Cams which is a huge plus for guys that don't want to spend a huge amount of money. 5k however will get you a very SOLID engine!!!!

[@damo2664]

Great video mate. What size are the risers and what height are the bars ?? 🙏🏻🇦🇺👍

[@40indyuk]

Nice Tommy, are you changing cam again when adding comp?

[@MasterTechMiller]

Yes mate changing to the cyclerama 512 Cam first. That will happen in about 2 weeks time. Another 2 or 3 weeks after that I'll be adding more comp!

[@haraldljones3428]

Nice, looking forward to your next steps! You are using the stock camplate in your builds?

[@MasterTechMiller]

Yeah can't wait to give it the Cyclerama treatment!!!! Just running the stock cam plate with the current setup. Will either go with a fueling or S&S cam plate with the next cam along with lifter cuffs

[@haraldljones3428]

@@MasterTechMiller Thanks! Planning to instal the 131 kit in my CVO 2018 Street Glide. I am also considering the Feuling 521 cam, and Woods WM8-408. How do you think these will compete with the CR 512? Another one: will the headers in the SE kit work with D&D slip ons?

[@MasterTechMiller]

I'm not too sure how they'll stack up against the CR512 yet as I've not seen the 512 in action yet. However if it is anything like the rest of the CR cams it'll be very solid with a very broad torque curve & a power curve that keeps going to the moon!!! As for the D&D slip on's, they SHOULD fit just fine as the headers that come in the 131 stahe kit are the exact same Headers that Australian Harley's come with from factory.

[@haraldljones3428]

@@MasterTechMiller Thanks! Looking forward to your comming videos!

[@jasoncroll1445]

Great video thank you, i am looking to get this however am getting told the cylinder walls are too thin and will lead to sealing issues and blow by etc. What do you think ? is it better to go with a smaller bore for thicker walls ?

[@MasterTechMiller]

The construction of the Screamin Eagle 4.310" cylinders is what let's them down compared to the aftermarket. You can have a cylinder with an even larger bore than 4.310" and still have an even thicker liner. Unfortunately SE products are produced on a mass production scale, therfore the design and construction has to be minimal and cost effective. Choosing a cylinder from Alpha Performance Engines (4.250") 128ci has a much better design, much thicker liners and overall surface area. The increase in surface area helps out heaps with cooling aswell. In short....Yes, go with a thicker liner in the cylinder. If that means a slight drop in Cubic inches then so be it.

[@bretthenson9447]

Tommy thanks for taking the Time to do this presentation for all of Us. I really would Like you to do the Mods on my 107 M8 2021 Sportglide Towards the End of April , Can you tell me Tommy what you think of the S&S Superstreet 2 into 1 " RACE ONLY " Exaust with a S&S Factory Stepped Headers , Can we get our hands on this Exaust do you Know.......?????.

[@MasterTechMiller]

Hi Brett & thanks for the great feedback 👍 I would love to help put together & install an engine package for you! I've not yet tuned a bike with the exhaust in question so I can't accurately comment on it's performance & or availability. However I can talk to a bloke in the morning who not only do I trust his experience & opinion but he will have all the answers we are looking for & I can get straight back to you. 💪🍻

[@MasterTechMiller]

Hey Brett, the S&S Superstreet 2into1 is available through our supplier 👌 They only have the Black in stock at the moment. The chrome one is on backorder unfortunately. However you mentioned you would be looking to do something in a couple months time so should you want the chrome one it should work out perfectly with the time line. I spoke to my friend about his opinion on that particular pipe, he has used it before and says it works great with the mid size (107 to 117ci) builds so again it's going to work great with any of those combos should you want one of those combos. It will work with 124ci builds aswell if they are not a very high comp/high output build. I would recommend a Bassani road rage or D&D if it were to be a hi comp setup. Hope that helps mate & I look forward to putting something together for you👌🍻

[@bretthenson9447]

@@MasterTechMiller Thanks Very Much Tommy , I only want to Run out the 107 and then I would Upgrade it to the 124 cu in but Initially I would like to install a ZIPPER'S 468 Red Shift Cam and S&S Lifters with S&S Lifter Cuffs with Screaming Eagle Adjustable Pushrods and a Set of S&S Roller Rocker's , Aswel as the Same Heavy Breather Air Cleaner as you Have on you're Lowrider S you took to the Benaraby Drags , I want my Breather Box to be Fitted with External Vent Piping and a Catch Can and I Would like my Primary Case and my Crankcase Vented also. Tommy my Email Address is [e-mail] If you want mate you can Reach me there. Brett .

[@MasterTechMiller]

@@bretthenson9447 thanks for the reply address mate, have sent you an email👌

[@Ronsgonefishing]

Hey Tommy, I love your vid. Do you know if the 131 crate motor will bolt into a 2007 softail frame ? thanks

[@MasterTechMiller]

No the 131 crate motor will not bolt into an 2007 frame. You would have to do a fair bit of fabrication work to get it mounted and clearance etc so it would fit.

[@roncoburn7771]

great video boy them screaming eagle pistons dont look like they have much of a skirt on them compared to my cp's .do you do a dyno break in on new motors or just run them

[@MasterTechMiller]

Hey mate, the Screamin Eagle pistons are made by MAHLE they're a great piston in my opinion, as for skirt length I've not actually measured it but they are definitely just as long as the CP ones. Engines get started heat cycled 3 times. Then on the dyno for some gental loaded runs up and down the rpm range and gears before any wide open runs are done.

[@roncoburn7771]

@@MasterTechMiller cool thanks your videos are top notch

[@wickedgamer1721]

Awesome now I'm drooling for the 131 lol curious how it affects milage and maintenance

[@MasterTechMiller]

I always recommend halving the service intervals when running these higher performance engines.

[@user-vw4rv7em1k]

@@MasterTechMillerthat’s a bloody good tip, thanks!

[@Firestorm637]

131 should come from the factory as an option

[@slargo83]

But how would they be able to squeeze more money out of you that way?

[@kylesummers1761]

@@slargo83 they simply chage you more

[@jodyleveille5816]

What is the part or model number of the pistons you used in part 4....thanks for these videos, great information

[@MasterTechMiller]

TMP5313 is the piston part number. Thanks for the great feedback

[@MrAndrew1953]

Pretty amazing difference from a bolt on kit. You have to be able to ride the bike around town and in the rain. I knew of someone with a Suzuki GT water bottle in 1972 fitted expansion chambers, fully worked engine- diabolical in the rain. Standard frame and brakes up to the job? I was on my Ps, first bike T250R.

[@MasterTechMiller]

Harley-Davidson motorcycles are not what they used to be! The new frame, brakes & suspension of the new Milwaukee 8 Softail range are outstanding. I highly recommend a test ride of one! You will not be disappointed. As for wanting to ride a bike like this one in the rain, it would be possible if you were careful with the throttle and did not chop at it. That being said, this particular motorcycle will smoke the tyre at 80km/hr, 3rd gear in dry weather.

[@MrAndrew1953]

@@MasterTechMiller If I did upgrade a bike like that Stage 3 would be more than enough. I watched a stage 4 Lowrider video by Laidlaw HD in the US. He made the point a Stage 4 bike had to be ridden hard to make it work properly. Thoughts.

[@MasterTechMiller]

@@MrAndrew1953 It all boils down to how the engine is setup & built from the get go. No matter the displacement. You can have very large cubic capacity engines that are very tame, low compression & will run for years and years. On the other hand you can have a smaller capacity engine built with wide open throttle in mind. It all boils down to the quality of the components used, the engine builder & the desired application. I personally hate the way H-D advertise 'Stage Kits' I get the concept of it and how it relates to the average unbeknown customer who can make a basic identification between stg 3 being better than stg 2. However it is not the case when it comes to engine building. I can build a Milwaukee 8 engine equivalent to that of a H-D stg 2 kit but it will greatly out perform the advertised H-D stg 3 kit. In summary. NO, I don't agree with what Laidlaw said (as you quoted it). I think he would have been generalising when it comes to the average customer and catalog engine builds. So I can understand why he said it that way. I still don't agree with it though.

[@MrAndrew1953]

@@MasterTechMiller I don’t think I’ve misrepresented Mr Laidlaw . In that video he rode that Lowrider stage 4 pretty hard, definitely not cruising. Also said if you weren’t into riding that way, to go for a lower stage kit like a 3.. Most of the Harleys I rode were in the 80s. Wife wasn’t impressed when I turned up on big black model for a test ride. I knew the owner of the bike shop. Tyres needed more air as the steering seemed very heavy and slow.

[@MasterTechMiller]

@@MrAndrew1953 sounds like you've answered your own question then mate.

[@sbutcher222]

Never mind I saw in the comments what tuner. ...I'm going to use dynojet tuner you think, I will get those numbers

[@MasterTechMiller]

Yeah absolutely mate those same numbers would be achievable with the PowerVision tuner, provided of course your running the same exhaust and Air filter setup

[@MegaErnieMAN]

Il buy it

[@MasterTechMiller]

It will be For Sale soon👍

[@dylancoric1194]

What’s the benefits of the camshaft switch opposed to just going stage 4 & leaving the original?

[@MasterTechMiller]

Watch parts 2 and 3 and see what you think

[@phillove5459]

Hi Tommy, started drag racing my FXDR and couldn't get past a 110mph. My dyno guy is trying to get around the speed limiter, any suggestions on how to remove it. Great work with the video series.

[@MasterTechMiller]

What type of tuning module do you have?

[@phillove5459]

@@MasterTechMiller A power commander 5, connected with power commander auto tune. Disconnected auto tune not working for track, dyno run and set a map for a smoother curve. But curve drops off the edge at 5th and 6th gear.

[@MasterTechMiller]

Hmmm I don't use the Power Commander much so I'm not familiar with it. I do know that with Power Vision, Maximus Direct Link & Screamin Eagle SUPER TUNER (up to 2018) you can turn the speed limiter off. The Screamin Eagle STREET TUNER is a waste of time. It does not have even half of the critial adjustments needed to properly tune a big build.

[@phillove5459]

@@MasterTechMiller Thanks Tommy I will give the power commander maximus direct link or screamin eagle tuner ago. Cheers

[@phillove5459]

Hi Tommy, Thanks for pointing me in the right direction. I found a dyno guy (Dyno worx, Ashburton NZ} who was up to speed on Power Vision, he was able to adjust parameters so now my 2019 fxdr is up and humming. Off to Burt Munro for a run at the twilight drags before heading back to Meremere Dragway. Cheers Phil

[@stopitskiiiuuup4006]

Miller, which size hard bags do you think I can use for my 2022 Harley-Davidson Street Bob FXBBS??? Or what do you recommend?

[@MasterTechMiller]

Hmmm tough question mate. Not sure I could advise you too much on that one, perhaps a little more information & I could offer some advice. What are the intentions of the bags as far as intended luggage/cargo. Do you want them to be rigid mount or detachable?

[@stopitskiiiuuup4006]

@@MasterTechMiller rigid mount. And I am going to use them for audio purposes. Installing 6x9 speakers into Both sides

[@MasterTechMiller]

Sounds to me mate like you will be after the hard bags/boxes from a tourer (Roadking, StreetGlide or Roadglide). I'm not familiar with any aftermarket bags that will allow you to have speakers in the lids. Also mounting the Tourer bags/boxes to your Softail will have it's own hurdles to overcome but it will be doable.

[@stopitskiiiuuup4006]

@@MasterTechMiller sounds good brother! It is definitely doable! I will make it work. I am going to add a 21" Front Wheel and 18" Rear Wheel to give it a much better look

[@rocketman3776]

Will the factory pipes re-install with this kit?

[@MasterTechMiller]

Yes! The entire factory exhaust system will still fit.

[@tkp1212]

Hi, on your 131ci upgrade with CR512 did you change rockers arm or using OEM?

[@MasterTechMiller]

Just the OEM rockers mate.

[@tkp1212]

@@MasterTechMiller it it hold alright? do you think the engine need to upgrade to S&S rockers arm?

[@MasterTechMiller]

@@tkp1212 nah I don't think so. I build these engines all the time and have never had any issues whatsoever

[@tkp1212]

@@MasterTechMiller Thanks for your input

[@freemaysin5088]

So just to make sure i'm on the same page here, this is just the 114 to 131 Screamin' Eagle kit from HD right? No extras, no different cams yet just the kit?

[@MasterTechMiller]

Exactly right mate. Just the off the shelf bolt on 114 to 131 kit with the included Screamin Eagle 517 Cam shaft. In part 2 (on my channel) I left everything the same except I swapped out the SE 517 cam to a Cyclerama 512.

[@freemaysin5088]

@@MasterTechMiller heard that thanks i'll check it out!

[@MasterTechMiller]

@@freemaysin5088 cheers mate

[@mechcavandy986]

I want one just like it! I’d trade my custom Street Bob for it.

[@MasterTechMiller]

They are definitely a very fun bike these new Lowrider S models. Especially with the 131ci kit. Check out part 2 and see how much more I got out of it with a cam change. You Streetbob sounds pretty cool😎💪 if your on Instagram hit me up at @tommy_twincam_miller and send through some photos

[@Hellbentbiker]

I'm not sure I'd I missed it somewhere but what tuner are you using?

[@MasterTechMiller]

Direct Link USB from Technoresearch.

[@jackmetzger8644]

if parts were purchased through a dealer does it void a warranty for them to dyno tune it?

[@MasterTechMiller]

Not if you use the SE pro street tuner (which is rubbish). There is no where near enough adjustment or capability from it, all due to EPA standards etc. Techno research maximus or direct link key in my opinion is the only way to go as far as tuning devices. They will viod your warranty though.

[@screamhawk6626]

What's the exhaust on it mate? Have any recommendations?

[@MasterTechMiller]

It's running the D&D Fatcat. I love the D&D pipes for quality, performance & sound. My 2nd pick is Bassani Road Rage 3

[@romanolecoursier]

How did the fuel consumption changed? From what to what ? (Liters per 100km if possible)

[@MasterTechMiller]

No idea on what liters per hundred mate 🤷‍♂️ I build performance engines, not economical ones. The feedback I do get from my customers is that if they behave when the ride around they don't notice any difference. However when they start to have fun and get into a bit it obviously uses more than the stock 107ci

[@romanolecoursier]

@@MasterTechMiller alright. Thanks for the reply! Cheers mate

[@Firestorm637]

Needs some carbon wheels and other lightening of the bike

[@TzeiEm]

If Harleys produced that much power from the factory they would not be a dying brand

[@jamesmathis2921]

Love the Bike! Hate the seat!

[@MasterTechMiller]

I like how the seat looks, but hate how it feels on longer rides!

[@jamesmathis2921]

@@MasterTechMiller Mainly don't like the brown, but also I like a solo seat, if anyone has to ride they can ride the fender!

[@MultiRider7]

Will this keep up with a Vmax 1700?

[@robertmcdougal2966]

What's that?

[@davidcolby6661]

What tuner did you use?

[@MasterTechMiller]

Maximus, Direct Link USB Key

[@mhopkins491]

How long did it take to install the 131

[@MasterTechMiller]

It took me 12hrs. That is probably longer than most dealers will quote but I go through everything, measure it all, clearance it all, do the the ring end gaps ect. I don't cut corners. Some dealers will probably quote 8 to 10 hrs but I would have my doubts about the quality of assembly

[@cheyenneobregon184]

Is there anything for a 2021 iron 883 that can be like this stage 4 kit?

[@MasterTechMiller]

Screamin Eagle offer a stage IV kit for Sportsters. It's an 883 to 1200kit. Comes with CNC Ported heads, 58mm throttle body & manifold, cam shafts, and obviously the larger cylinders & pistons. Part number for that kit is 92500041

[@cheyenneobregon184]

@@MasterTechMiller it says it doesn’t fit in the Harley website for some reason

[@MasterTechMiller]

@@cheyenneobregon184 what country are you in?

[@cheyenneobregon184]

@@MasterTechMiller US Miami, FL. I just Bought this 883 2021 not really knowing how under powered it is for my first bike but it fit my wife and I wanted to start upgrading it

[@MasterTechMiller]

@@cheyenneobregon184 the reason it says it wont fit is only due to pollution regulations. The kit will still physically fit the motorcycle. Harley-Davidson have to say it won't fit because it doesn't meet your EPA standards. To be honest, If you are looking to keep the motorcycle for at least a few years before upgrading to Softail or Tourer I would recommend just doing the 883 to 1200 conversion kit. It just doesn't come with the CNC ported heads & larger manifold & throttle body. Much cheaper option. Part number for that kit is 29836-10A

[@bap2139]

how do you turn speed limiter off?

[@MasterTechMiller]

With an aftermarket tuning module.

[@bap2139]

@@MasterTechMiller apologies, you probably mentioned in the video but what tuner were you using for this project?

[@MasterTechMiller]

@@bap2139 I used the 'Direct Link Key' from Techno Research

[@jadesymonds933]

you kept it belt drive i see?

[@MasterTechMiller]

Yep absolutely! No issues running a belt these days.

[@victorgonza4528]

New clutch next ?.

[@MasterTechMiller]

Apart from the Screamin Eagle 1275N springs the clutch is stock. They seem to hold up very well with all the massive torque the Milwaukee8 engine produces. Compensator sprokets are the first weak spot. I have personally drag raced many different M8 bikes with only the SE 1275N springs and they have not let me down. Don't get me wrong, the stock clutch is NOT bullet proof and will definitely fail with rider abuse and or negligence. But for a tough street engine the stock clutch with upgraded springs works perfectly

[@victorgonza4528]

@@MasterTechMiller Thanks good video

[@MasterTechMiller]

@@victorgonza4528 cheers🍻 Part 2 will not be far away! I can't wait to get more out of it.

[@ryancormier309]

Me looking at the 114 derby cover knowing it’s useless now 👀

[@MasterTechMiller]

😂🤣 Yeah true! It keeps some of them guessing

[@Matosjay]

you didnt index plugs..

[@MasterTechMiller]

Mate I'm pretty sure people stopped indexing plugs 20 years ago....the power of modern ignition systems & the amperage they deliver far exceeds the old school systems from back in the day. Not to mention the fact that these M8 heads runs dual plugs in each head. I don't see any benefit whatsoever that aligning the ground strap to face towards the intake valve in an attempt to fully engulf the plug to do what,......provide better combustion? More power? Less emissions? I haven't any solid information that indexing spark plugs is a benefit in today's age. I am eagar to hear and see your proof of how it can be of any benefit.

[@Firestorm637]

If you could reduce the weight by 100 pounds, would be awesome

[@alanmiller1263]

How are you calling these stage4 when you're not doing anything with the bottom and

[@MasterTechMiller]

You will have to ask Harley that question mate. That is how they advertise this kit. Look it up

[@chandlerking4674]

@blockhead

[@lockpinos]

ahhh now this 650 pound bike finally got the power as much as a 400 pound middle weight european/japanese bike.

[@MasterTechMiller]

Not to mention 4 times the presence & respect as any plastic progectile on the market. Check out part 2 to see how much more it made with just a cam swap. Part 3 isn't far away so stay tunes for it

[@robertmcdougal2966]

@@MasterTechMiller Great answer!

[@GBMatthew07]

80 bhp on the dyno at stock that's pathetic from such a big engine.

[@daveatwoodsr2044]

Tons of problems with the 131. Don't get it.

[@MasterTechMiller]

I'm interested in what the 'tons of problems' are. Have you got a 131 ?

[@badnews2158]

Under powered, my 124 will eat it alive

[@MasterTechMiller]

Watch part 2 & 3 mate