Will the Audi V8 fit in the Roxster? - Porsche 986 Boxster V8 engine swap track car build 3

[@fredericrike5974]

The Audi 4.2 looks a better fit than I thought! Since it will be a track car and it will break stuff on an engine that will be a real bear to service, make the mount up something that lets you drop the engine/trans for most service past an oil change! Take your time, get it right- most of us didn't come here because you are a fast, rapid fire builder but because you do really neat,great stuff! And then there is Mrs, Jeff- wouldn't wan t to leave her out! Best to both of you! FR

[@toddatstone_city_outlaw8714]

Boy that fit in there better than I thought it would. This project might actually go quickly.

[@HomeBuiltByJeff]

Hopefully. That is the plan ;)

[@seanlinne8383]

I think I spotted a missing allen bolt on your cv axles on Harry. Right at the 2:00 mark.

[@HomeBuiltByJeff]

They are like Harry 911's axles and have 4 bolts and 2 dowels.

[@trevorflanagan4873]

I haven’t seen this project in so long, but I am literally working on a v8 boxster!

[@Nixxomatic]

3:25 I spy with my little eye something not-a-silver-ML. :D

[@paulschmidt4514]

Looks like you are missing a CV bolt on the transaxle, Love your work Jeff... And Mrs Jeff..allthebestfor2021 😃

[@jamescairns1046]

I wish I'd seen this sooner as I could have pointed you to my Facebook page V8 Boxster Build in the UK as it might have helped show you how I tackled some of these issues to get mine up and running! I did modify my gearbox mounts to allow the exhaust to run 'through' it. Been working fine for circa 4 years now and have some future mods planned, including going boosted.....

[@brucepritchard5327]

Great progress, can’t wait for future episodes

[@garynorman5179]

Really enjoying this project.

[@curvs4me]

Let's gooooooooo J man!!!!!!!! You'll upset the masses with a proper reliable powerplant in a Boxster, I do so love it!

[@lordmills7110]

The making of an awesome ride.

[@anomamos9095]

Don't use the Audi rubber mounts use a leaf spring bush or swing arm bush and make your own. Move the engine back at least 20 mm from where the transmission mounts line up. You should probably make a cradle that replaces the engine and transmission mounts and use it to mount a bash plate / bucket under the sump to make the race marshals happy

[@osnoynek]

I would double check your strat for motor mount. I feel like if you mount to any suspension mount you could change suspension feel on that corner. Make it non responsive or act differently. I may be wrong but probably depends on setup exactly.

[@HomeBuiltByJeff]

This is not being mounted to an unsprung point

[@alienpoker]

Rockin’ with the Roxster. I’m really enjoying this engine upgrade. It’s time to turn a mutt into a genuine track car ! Good luck, Jeff.

[@nickvitobovino3486]

Great build. What about the coolant reservoir where did you install that high enough to be sure the heads are full of coolant ? Thank you

[@dra911]

Yes, those headers are definitely undersized! Did you ever come to a rational explanation for the apparent dip in the torque curve between dyno sessions? Love the progress on the Roxster, can't wait to see the results.

[@HomeBuiltByJeff]

No, the car didn't feel different, and the power curve was the same. I am not sure.

[@dra911]

@@HomeBuiltByJeff Interesting, maybe just a dyno setting/anomaly then? It's awesome to hear that it's meeting expectations. Headers will definitely help "the numbers" I reckon. I have a nice set of George's racing headers (1 & 5/8") to go on my build later this year.

[@malcolmlane-ley2044]

That lump certainly went in there better than I expected, I admire your tenacity; surely a big strong firefighter doesn't need power steering on a car with a light front end like the Boxster?

[@stuartd9741]

Or AC!

[@azharsyarawi]

Absolutely loving this . Probably can barely only afford an old boxster anyway. You’re proving that old doesn’t mean it needs to be binned. Great job and looking forward to more

[@charlievanditmars6027]

Did I see a missing bolt on the CV joint on Harry?

[@OzzyCPT]

Hi Jeff. Love the work. How about remaking that gearbox mount in a way so that the exhaust runs through it instead of over it? I've seen many hotrodders do this with cars on air that cannot have an exhaust under the frame, so they notch or cut a hole through it and weld supports back in. I recently saw Finnegan do this on his slammed C10 Chevy

[@anomamos9095]

If the transmission is separate to the diff or the diff doesn't use a clutch type lsd put some Teflon based gear oil treatment in it to see if it will stop leaking. I highly recommend it for open and torsten type diffs

[@pascaljeske7307]

Love it wait on the next Part of Video 👍❤️❤️👍

[@brittenv1000]

Don't beat yourself up to much on time. I think you've done loads in 4 minutes😜

[@TerjeNormann]

Hi Jeff... What an awesome project... Do you have the measure in hand how long the distance there is from center of drive shaft outlets on the gearbox to the very moust front of the 4.2 engine? I'm planning to use the Boxter rear suspension, gearbox and a 4.2 V8 in a home made custom supercar...and dont have the engine in hand yet. I have the Boxter donor car.

[@HomeBuiltByJeff]

No, sorry

[@deopersad2915]

Always alot more work putting something different into another car, but it's not to bad and you can get more after market stuff for it wich is good 😀👍🏻

[@davidszymanski1382]

Mate you rock! Love your enthusiasm and passion for Porsches!! So refreshing to see a guy so passionate about his hobby! Keep up the awesome content 🙌🏻👌🏼👌🏼

[@abdulkareemrainers3142]

Was a bit worried about belt space and the levelling of the engine and trans but if you are dropping the trans mounts then it should suffice. That makes me worry about the suspension and ride height in terms of clearance🤔

[@HomeBuiltByJeff]

It will be fine. Track car ;)

[@goodq]

I still get that happy feeling seeing Harry drive itself off the lift after watching it get pushed for so many years. So nice to see that car running.

[@rennch.]

Do the classic retrofit electro cooler! Life changing.

[@HomeBuiltByJeff]

;)

[@rameshsital9647]

Goodmorning Jeff. I have a idea : Why don't You use the airco unit from the boxster and replaced in Harry. And thanks for rebuilds video. Ramesh Sital. Greetings to Mrs Jeff.

[@gilbertschantl4129]

Why not use the electrohydraulic power steering pump from an Astra (if it is strong enough)? Would save a lot of oil line.

[@HomeBuiltByJeff]

Because this is being built as a cheap track car, and it is better to use what I have.

[@truckerguy2572]

It's going well, Jeff. Take the time and lay your plans. Better to get it all sorted in your mind than go off half-baked and have you spend more time taking it apart.

[@spinnetti]

Amazing amount of room in there. 2.0T might be a better match for the car and makes big power easily

[@chisharpe3304]

Great work Jeff. I have day dreamed about doing this with a 996. Plan is to find one with a blown engine once I purchase my house 🏡

[@ssevngs]

one of a kind you are for sure!

[@pete1973x]

What a great project, looking forward to seeing (and hearing!) this done - love those Audi V8's. Good work bud.

[@stevegreiner5420]

Harry may benefit from an electric a/c system. Mounts in trunk not on engine. Keep up the great content 🏁

[@matthewwilliams1155]

Awesome could go smoothly 😱

[@stuartd9741]

I'm surprised the Audi engine fitted in there quite nicely Jeff. This will be a torque monster round a track thou might get a bit toasty in their without the AC! Thou I'm sure without that AC pumps weight will off-set the extra weight of the Audi engine lol!. (Their quite heavy) I come for the Alfa mainly but the Roxster shaping. Up to be an interesting project. Think I'll might have to help you with these projects. :-)

[@HomeBuiltByJeff]

Watch the previous video where I weighed both engines ;)

[@polloloci21]

Is the 911 hood airflow vent inoperable?

[@HomeBuiltByJeff]

Yes, but there are no decent vents in the cabin

[@Brendan.Wheatley]

Love your work mate!

[@mawe42]

Check so that the ventilation is turned the right way on the 915, cant remember what way is the right... For the noice in the car, nothing beats the noice cancelation Bose head phones. I use them when I drive my race car.

[@HomeBuiltByJeff]

Harry has fantastic 3 layer sound deadening, so I don't have to. It is a very rare comfortable classic road trip car ;)

[@mawe42]

@@HomeBuiltByJeff That doesnt help the wind noice when you roll down the Windows. :)

[@timgosling6189]

With that opening shot I thought for a second you were going to try the V8 in Harry's front trunk!

[@andrewgates4904]

Anyone know if the gearbox/bell housing bolt pattern on the audi rs4 b8 or b8.5 engine is also a match for the porsche gearbox. Considering doing this to my 06 cayman👍

[@HomeBuiltByJeff]

I believe it is, but I am not certain.

[@williamholmes9129]

I want one now!! That's the only downside in watching your great videos👍 but remind me to many projects and to little space (& money!!) 😁

[@martinrodgers6114]

Did I spy a Porsche Cayenne or Macan as tow vehilcle?

[@richardhintonracing]

Jeffrey you are making a rod for your own back with all these far from simple tasks on at once - we can now feel the pain from 12.000 miles away.

[@VolV8]

That's a Cinderella swap! Nice. Your first full roll cage coming up?

[@69MazdaR100]

Did I see a missing driveshaft bolt 😜?

[@gerardmasnou5255]

You might have a volt missing in Harry's rear axle😅😅

[@glensgraphix]

Solid mount the engine? It is a race car after all. You won't need comfort :D

[@Qgal5kap123]

I'm still amazed you haven't torn off that silly wing, and lit it on fire :-P

[@HomeBuiltByJeff]

It goes so well with the door stop diffuser ;)

[@Qgal5kap123]

@@HomeBuiltByJeff - that it does. It's a match made in aero hell

[@jiwik731]

Ok. After Covid i am gonna be an Australian firefighter. Three Porsches in one video... damn. :D

[@stuartd9741]

IKR! I'm definitely in the wrong job lo!

[@HomeBuiltByJeff]

Actually there is 4... but I have a problem.

[@richieduck67]

Looks like it was made to fit

[@MrGerd]

It will fit in boxter or IN THE BIN ;)

[@osnoynek]

Mcm lol

[@verdyjulien4380]

Top vidéo again 👏👏👏🇨🇵🇨🇵🇨🇵

[@nickmassey9104]

What a neat looking engine bay like it was ment to fit

[@hughjohnson2674]

Yay! It’ll be sweet!

[@dudeonbike800]

Wait a second! Do I see a missing bolt or bolt head on your axle shaft at 2:00??? Edit: dowel. Got it!

[@giuliettaevo]

You would be better off with some stronger engine mounts. The original Audi rubber is too soft and will allow the engine to move too much in the car. It most likely is softer then the gearbox mounts from the Porsche. Ideally they would be equally hard.

[@HomeBuiltByJeff]

The Porsche mount is similarly soft

[@jeffward3183]

Best engine

[@Pedroisanickname]

There's an inherent flaw with the Audi V8 with the turbo filters, they clog and when they do, it blows shit up. They're under the intake at the center of the engine. You'd be wise to tear it down before dropping her in, the filter can be eliminated alltogether as it has a high liklelyhood of clogging and failing. Have a look for yourself here >>>kzbin.info/www/bejne/fILCmKZ9nciFqrc

[@sonyhk3824]

It's fitting nice, have a good luck mr Jeff 👍 💯

[@peter-fuppe-fuchs]

Why not a audi V10??? Would be s monster 💀 n why not a 3" exhaust on the orange queen??

[@HomeBuiltByJeff]

Did you see how tight the V8 is? 2 extra cylinders would have to go in the cabin.

[@peter-fuppe-fuchs]

@@HomeBuiltByJeff angel grinder 😉😉😉

[@HomeBuiltByJeff]

@@peter-fuppe-fuchs I will just have to move the drivers seat to the Froot ;)

[@peter-fuppe-fuchs]

@@HomeBuiltByJeff 🤣🤣 i was just kidding.... With the V8 it will be a killer..... I have been a Porsche fan since I was 4 yo n I'm a big BIG fan of orange... So your orange queen is just spot on, and the Roxter..... It will go as a flash..... How's it going with the Alfararri?

[@dehaviland7645]

Isn't a leaking Porsche a good Porsche?

[@anomamos9095]

In regards to the exhaust. Tuned length runners are not exactly necessary for maximum performance. And the optimal length varies with engine capacity and pipe diameter. On an NA engine you want to pair cylinders so that one helps scavenge gasses from the other , the tuned length is supposed to optimize this especially at certain RPM that the vehicle may never operate at except flat out on a race track, Other designs might be a lot better for street use and even on some tracks. Alternative designs are A long runner log. this is where pipes almost like zoomies come from each port then join in a very large log, the pipes are about half to a third the length of a tuned length header depending on what power and toque curves you're after or if you have turbos. Another is a timing paired header , This is where you join two or three cylinders based on when they fire so that the pulses don't conflict . you use a runner that is between a third and half the length of a tuned length and join them into a collector that is more than two or three times as large as each runner.

[@HomeBuiltByJeff]

I am just going to use the factory headers ;)

[@Al-of3zp]

Another new blue toy?

[@HomeBuiltByJeff]

I have a problem ;)

[@Meyersmanx1]

add two turbos just because.

[@paulwhite7475]

Do my eyes deceive me or is there a cv bolt missing

[@HomeBuiltByJeff]

dowell

[@300DBenz]

Ok.......HOW? How is there enough room for a big, honkin’ V8 when there’s so little room while the stock boxter engine is in there?!

[@viktor_klang]

Hi Jeff, In case you need it, the following might be a good modification to allow for more room on top of the V8: kzbin.info/www/bejne/fKPOdohnmJWEjdE

[@adman6380]

Another Porsche towing the other Porsche?

[@timwhalan6417]

👍🏻🍺👏

[@mrapex1182]

Hi, Thanks for the series. This, to me, is your most interesting current project; the Audi transplant seems very possible. Unfortunately the Alfa project, again in my view, has become a bit of a hack-job; too much cutting and not enough considered fabrication. The Boxster should result in a solid, viable car without a lot of bodging. Keep up the good work.

[@stuartd9741]

If you've watched project Binky they're race engineers and they sometimes have to re-do previous work. This Alfferrari is a one-off bespoke car there will be a bit of chopping and changing as the project progresses. Whereas the Roxster is just an engine swap. Still alot of work but not as complex project.

[@david929190]

Your intro is still to loud and annoying. Otherwise love your videos

[@jeremypastor8057]

la plus moche de tes porsche avec les prises d air jackie tuning.

[@jamest5149]

Scrapping the air on is a mistake, especially in Oz, if you were in the UK you might get away with it but still limit the summer track days and enjoyment, in Oz it is going to be miserable 😩 Will the Audi engine not fit with the AC pump? It would make sense 👍

[@HomeBuiltByJeff]

Pure track car, which I am not planning to do endurance races in, so I should be fine.