VS racing Billet 7875 Gen2 results - 100more whp!

[@SloppyMechanics]

Sorry if the volume isn’t perfect I had a few rum and cokes

[@BangBangSkrtSkrt]

@Mr. 6 liter VAPING THROUGH YOUR EARS?!?!?

[@AutoBikeTruck]

Very Kool Up Date On The Truck

[@xozindustries7451]

Sounds good to me, have you tried Kraken Rum yet? It was my favorite

[@SloppyMechanics]

@@xozindustries7451 yes, thats what i had, its my bro

[@randelclawson7695]

Have you done any napkin math to estimate the HP gain per rum and coke imbibed?

[@HunterTuned]

I’m very happy with my gen 2 7875 has went 9.2 148 on 22-23 lbs in a 3k lb fox 8’s coming soon hopefully.

[@hereinmissoula11]

What advantage does this turbo have (besides packaging) over a $550.00 s475 ??

[@HunterTuned]

Spool time

[@hereinmissoula11]

HunterTuned driver/setup ability more like . S475 will take you much farther out the back too ... less back pressure and lower egt’s

[@infamousnova]

@@hereinmissoula11 where they 550 at

[@hereinmissoula11]

infamousnova www.ebay.com/itm/BorgWarner-171702-S400SX4-Turbocharger-75mm-2-94-Compressor-Inducer-Dia/142320164626?epid=1217860488&hash=item2122f15f12:g:dpkAAOSwax5Y0DDq guess they in 580 range now

[@jordantomblin2302]

Where's Mr. Regular and the Roman when you need them? This horsepower is CODE BROWN.

[@coalstang]

love the updates man. awesome you show the details and explain it all. 👍👍

[@Itsme-mx5tl]

That's crazy another 100hp!!! DAM, congrats!! tire fryer

[@kylefossvh]

Do you know if he was running the .96 AR or 1.25 AR?

[@oldscut84]

Also wondering

[@coddogg81]

Ya. Me 2

[@b00st_SS]

Any difference in spool time on the street using Gen1 vs Gen2 ?

[@genemounce8302]

Ordered the Denmah Gen2 7875 kit yesterday. Less than $1,200 SHIPPED! \m/

[@jesscneal]

Seems like that Gen2 comes on boost immediately. Good info Matt. Thank you

[@jasonjackson7541]

Do you know what the backpressure was at the 25-27 psi you made? Was it still around 2:1?

[@diygaragetx]

Good job Matt! I was thinking the same thing about that T4 turbo covering that higher HP range, and how not that long ago a T4 doing that was unheard of. I am glad you did an honest side by side comparison, that helps a lot. Do you feel it had a little more left with some more fuel?

[@hereinmissoula11]

Would never make more than a cheap genuine s475 ... will spool earlier , but will just blow tires off ... good for 5-700 rwhp cars , beyond that it will make more but is out of turbine and not efficient

[@batdad187]

​@@hereinmissoula11well this didn't age well 😂😂 people making 900whp+ on the gen 2.5 and next gen 7875

[@hereinmissoula11]

@@batdad187 whats the backpressure ???

[@batdad187]

@@hereinmissoula11 waiting to dyno mine and will report back. I know matt doesn't like going past 2:1 though

[@hereinmissoula11]

@@batdad187 like i said not efficient , diminishing returns and pushes motor harder with the backpressure. good to operate the turbo in its efficiency range. much easier on motor

[@georgem.6136]

That’s incredible power!

[@charlesbrittain434]

Hey Matt, if my goal was 550hp at the tire, could I use a smaller turbo for faster spool or would the billit 7875 be optimal? At that level would 2.5 od cold side be better than 3 inch (velocity)?

[@alexstromberg7696]

You want to use as small a turbo you can, if you only want 550hp and nothing more, get a turbo speced for it and not a turbo for 700hp

[@NarxolepticCustoms]

Go watch the 2017 edition of “what items to buy” here on Sloppy Mechanics. It literally gives you an exact recipe for 550-600 wheel hp setup

[@charlesbrittain434]

@@NarxolepticCustoms If I recall he suggest the cast 7875, but I recall he recently said that the billit 7875 spools a little quicker.

[@charlesbrittain434]

@@alexstromberg7696 but would it spool signifigantly faster than the billit 7875 already mentioned, if so at what rpm say on a stock LM4 (P) 5.3 with SUM-8706, 226/230 113+4, .600/.575 Lift, 3-bolt 7k rpm cam used with pac 1218's .600 max lift or possibly L92 (8) same setup? Matt talks like the regular (cast) 4845 is pretty punchy and the billit a little more so. If the lag time isn't much more reduced then it wouldn't be worth leaving this proven setup.

[@alexstromberg7696]

@@charlesbrittain434 I don't know anything about LS, other know imperial. But I if you want to have less turbo lag, get the smallest you can.

[@918sonicsupra]

With a larger exhaust housing would the back pressure drop and increase exhaust flow and power? What size housing does the turbo come with?

[@militaryman9638]

1.25

[@918sonicsupra]

Wow that’s a big housing already, that turbo is maxed

[@TheBrokenLife]

So how are the guys at the paving company recovering from the fire? Insurance taking care of everything? I've been curious about that for awhile now. Hope they're up and going again soon!

[@SloppyMechanics]

Yeah it’s getting there going to be a while though till it’s all 100%

[@TheBrokenLife]

@@SloppyMechanics That sounds mostly like good news. Please send our regards (assuming all of the viewers here are pulling for them) and keep us updated. It's just not the same without paving equipment in the background!

[@Brighton_Lal]

I have an lq4 was recommended the 78/75 however I want something to spool quick. Would this be the best option?

[@Carolina_Squid]

Matt, Im buying this turbo for my 4.8 but havent decided on a cam yet. 🤷‍♂️ Cant make up mind on the ss2 or the btr stage 2 turbo cam

[@infamousnova]

What you go with?

[@yadrianromero2408]

Why is there such a power drop towards the ends of the graph? (Almost losing close to 90whp at 140MPH? What’s the boost curve looking like? Is it due to cam? Manifold? Turbo running out of stem?

[@rdnck891]

Matt happel, what was the AR on the cast 7875 vs the gen 2.5?

[@Turbogto_guy]

Is this turbo physically bigger or will it go right in its place? How much modification is needed to fit it if I have a regular billet 7875? Wish you could have set them side by side. I was thinking about getting one but that’s my hang up. I was wondering if it’ll fit. How’s it spool compared also?

[@jersyboyy]

I went from an on3 7875 to the vs 7875 v2 and the exhaust is a different size(you will need the flange and to build a new dump) and it moved the outlet to the intercooler over like an inch. I still have to make another elbow from the outlet to the intercooler because of that. Hope that helps

[@Turbogto_guy]

So going from a 3” exhaust to a 4” dump didn’t have a major part in this power increase? I’ve seen people pick up 50hp from a 3” open dump from a 3” full exhaust.

[@SloppyMechanics]

It all depends on how many bends and where they are and if it’s restrictive it’s a pretty big moving target sometimes

[@joshkicklighter9513]

What heads are this 6.0 wounds ring what the compression is

[@hmoobva3581]

I wish you would put all these quick details inside the description.

[@CanadaBud23]

Neat how that tire ripples under the power! I wonder how does it feel to rip some chooches in a similar truck that you had.

[@tuckerprestridge559]

How did this gen 2 hold up thinking of going with a vsr 6262. But if the turbo isn’t a solid dependable turbo I rather go with an hx35. Did this turbo get any shaft play metal shredding etc?

[@SloppyMechanics]

Zero issues with any of them over 15 years

[@3800TURBO]

Do you have a lay over of the duty with the same injectors? Makes me wonder if the gen2 will tap 1000 on a decent 4.8

[@sammygomez1284]

I’m about to find out

[@prdctofxprienc]

@@sammygomez1284 what about 2... think they will put down 1400

[@Bigchief45]

What cam SS2? Where was it brought? Bring more fuel and degree the cam. Willing to bet 50-100 horse increase.

[@joshwynn457]

I'm getting ready to do a gen 2.5 billet on my piston and rod LS1 w/a small blower cam. I'm hoping cam isn't going to be a restriction, and the car will make enough power to get into mid 9's, with a/c still. Really looking forward to this, hopefully I'll be able to get it tuned... do you guys recommend anyone? I do have hp Tuners.. also, how's that fuel system setup? I'm trying to not have to run a external regulator, if I don't have to, but already being on e85, my pump will probably be limiting my power, until I upgrade. Thanks guys!

[@oldscut84]

1.25 a/r ?

[@jasonjackson7541]

What do you think about this turbo on a 400ci sbc to run 12-14 psi in a street car? Would backpressure be reasonable at this level? I'm leaning toward just doing a billet t6 s480 but that will be a lot of rework.

[@Kincentc]

Was that the 1.25 exh housing?

[@rndestroyer]

I’ve heard of some folks setups not liking ignition timing but have never have researched into why. Would be interested if you figure that out one of these days.

[@WesHallracing]

Probably because no one has verified TDC. Could easily be off a few degrees either way.

[@scrapmetal_sleepers]

So how much was made on the 3" dump? I have one on my truck and am upgrading to the ball bearing 79/78

[@shaadydog1]

Any idea how the 8883 would compare to the Gen 2 tested here?

[@SloppyMechanics]

88/83 is larger and laggier and makes less power

[@GTStuning-]

How much did you scale this tune? I noticed the cylinder airmass is still within a decent numerical range so it's definitely a sweet spot whichever scale factor you chose 👍

[@SloppyMechanics]

not sure, say its 2gcyl ill knock it back 50% since its roughly 2x higher than 1.20... but if that is medium boost i need to pre-emptively knock it farther. sometimes ill just kick it 20% at a shot till its under, and if it goes slightly over g at max boost i dont worry too much

[@GTStuning-]

@@SloppyMechanics awesome to hear, thank you

[@jdcarguy1242]

So, the ??? Is s480 or billet7875g2. Im still leaning toward t6 on a 6l. Opinions? ?

[@hereinmissoula11]

S480 for sure .. easier on the tire too

[@hereinmissoula11]

But if your under 700 take the 7875

[@juiced71]

How about that the 80 with the T-4? You do any testing on that one? Seems like a winner I got the one you had on your white truck I believe the T-6 billet 80 ? I can tell you it lights off quick! Definitely a fun ride !

[@hereinmissoula11]

I believe that’s the turbo on 8F8 mustang . ... the t6..

[@juiced71]

Hereinmissoula oh ok I missed that one .. thank you I will go back and check

[@hereinmissoula11]

juiced71 correction it’s a cast s475 clone . T6

[@joshkicklighter9513]

What heads. Compression?

[@senecalfab1487]

What size wastegate is recommended for the 7875 here?

[@v8tergt653]

Is this a .96 or 1.25 divided?

[@Turbogto_guy]

V8ter Gt in the pics on the side and the specs say it’s divided

[@Dodgevair]

Engine size and A/R?

[@SloppyMechanics]

6.0 and the larger iirc 1.1x 125? Idk

[@paxtonspeed]

You think, you may be running out of valve spring, up top?

[@SloppyMechanics]

It’s possible or they’re worn out the combo has been together a while

[@RevyZero]

What cam and springs is he running? (Sorry if you say what they are in the video my adhd won’t let me watch the whole thing without skipping to the good parts lol)

[@TurboTrucks7875]

ss2 with btr doubles

[@thatssonathan1066]

Would this gen 2 78/75 work good on an ls 383 stroker?

[@SBoth_]

I would like to know as well. Also a ball park hp number would be nice.

[@boostinwillie]

We in here 💪🏾💪🏾. Been looking to upgrade mys475 too🤔

[@hereinmissoula11]

Will be a loss , will spool faster but will just make less power and blow the tires off .... 🤷‍♂️

[@jeepn8048]

Awsomeness... If all else remained the same with the vehicle how would you compare the 7875 to the s475?

[@dlawson8993]

I would like to know also. But it is impressive.

[@FredAllenBurge]

There's 3 different turbine wheels available for the s475 making it an awesome versatile turbo for many V8s. But ya gotta know which one you want and how much power you want.

[@rugbyguitargod]

Man, its like insta-spooling

[@dochaze1]

What are people doing for driveshafts in cars making this power? I’ve got everything else planned out for a swap, but this is still up in the air.

[@jabberm249m4]

Call Pst driveshafts in Florida

[@SloppyMechanics]

I have trucking companies make me heavy wall steel 3 inch driveshafts

[@WesHallracing]

Or used ebay nascar driveshaft

[@runnningonempty]

I am local to PST, Clearwater Fl.. GREAT Drive shafts and GREAT prices.Paulo is correct

[@dochaze1]

Awesome! Thanks for the info/options!

[@7amood965]

What’s your thoughts about vs racing gen 3 ?

[@shannonsisk]

This is against the Gen 1 billet correct? Really impressive. My Gen 1 billet is a beast

[@blackstonegarage5394]

can we see how this turbo compares to the billet s369 from vs racing?

[@hereinmissoula11]

369 is smaller . Just get genuine s366 . Turbine side in older Sx turbos outflows sxe stuff

[@asv4k8]

Is this turbo still your favorite a year later with other offerings today?

[@SloppyMechanics]

Yep it’s my new fav because gen 1 is retired

[@bdfmotorsports7917]

Wow, these 3sec dyno pulls really show a lot... good job. Keep up the good work.

[@SloppyMechanics]

Better than putting the rods out of the pan at 1 sec

[@s2upid]

I suppose he could just put up a 3 hour long video of him in the cab hitting the keys and flashing the file to the PCM a dozen times.

[@Turbogto_guy]

BDF Motorsports can you do better?

[@brandonpanozzo86]

thats a nasty little truck would be fun for sure

[@PNW_Car_Mods]

Stupid question Matt, how far off would this little pickup be from an 8s for 8 program?

[@TurboTrucks7875]

its been 9.74@142. If i dropped a couple hundred pounds out of it its a 8 second truck. As its sits it weighs 3890 with me in it, that's a/c and all the creature comforts.

[@PNW_Car_Mods]

@@TurboTrucks7875 Thank you Andrew. Awesome build you got there.

[@militaryman9638]

@@TurboTrucks7875 That didn't answer the for 8 part of 8's for 8

[@Freds_05]

Wouldn't a 67 vsr turbo get you a quicker spool especially for that small 5.3?

[@yadrianromero2408]

Yes but it would not carry the power up top.

[@Freds_05]

@@yadrianromero2408 w.o.w I ended up going pro charger thanks for the input I appreciate it

[@loudonello5405]

What size downpipe

[@betosgarage]

Man I still havnt installed my gen 1 . First time installing a turbo need help with the aluminum welding lol

[@mrmeadowsiscool]

I wish I had rpm’s to look at and we’d be able to tell how responsive it is

[@SloppyMechanics]

Look at my video “why I plot in mph”

[@james10739]

No link for it in the description

[@ClaytonYatescarenthusiast]

That back tire is about to say peace out

[@8wireracing694]

if your buddy Andrew does decide to install termx pnp in concert with the factory ecu.....that could be very helpfull info for dorks like me that have no right attempting it.

[@iamblaineful]

That looks damn solid, Sloppy.....and fits nicely in that fairly tight bay. Would love to see a bigger injector run followed by a slightly less “daily driver” cam in it....just for science 🧬

[@ThePryapizmC]

Would like to see what it does with some Snake eater 1500s and the ol ls9 cam

[@scrapmetal_sleepers]

Roundboiz or squareboiz?

[@joshkicklighter9513]

Damn spellcheck

[@TurboDog73TX]

It would be cool to see it on 8F8's Stang once You've got it dialed in and reliable. I'd love to see that data..

[@hereinmissoula11]

Would slow down ....

[@ryan0789m]

What about the torque numbers? Anyone know the before/after?

[@TurboTrucks7875]

977 ft lbs

[@MrLs1racer]

I would love to build a 328" motor with a ls2 block and a 4.8 crank. 10:1 comp, e85, and this turbo. I bet it would really rip!

[@HerculesRockefellerESQ]

LS2 block and 4.8 crank would net you 364"

[@ryanaxberg9263]

why is it that a smaller engine could make more power?

[@justin_parks]

Less cubic inches, less exhaust backing up the turbo and hotside, giving the turbo the capability to produce more power. Look at 2jz engines making 1200+ hp with small to med size turbo by V8 standards.

[@ryanaxberg9263]

@@justin_parks I was just thinking that different engines like that are over head cam and are just a more efficient engine which results in more power, or less power loss.

[@yeetskeetledeet8184]

Smaller stroke, capable of turning higher rpms + less parasitic loss and higher thermal efficiency. It’s a combo of all these things and many others

[@dilsher12]

Its mostly pushing more boost puts the turbo in a more efficient spot on the compressor map

[@hereinmissoula11]

justin parks see this mans answer . It’s this simple . Volume of air .

[@pbmachines972]

Wow I really want to do my truck I have the same setup but stock

[@interceptor0166]

Awesome is right.

[@TheProchargedmopar]

😎

[@hereinmissoula11]

Sounds like converter is maxed

[@SloppyMechanics]

its locked...

[@hereinmissoula11]

Well don’t I look dumb 😐🤯😂. Inertia dyno...

[@hereinmissoula11]

Sloppy Mechanics even on the higher 800+ cars we dyno at shop I use pulls are quite a bit longer and load it harder . Mustang dyno

[@hereinmissoula11]

An upgrade for the mustang ???? What ?? Isn’t the mustang a 96 turbine ??

[@2CabrasLocas]

This truck sounds like your getting out of it at 4500rpm. The mustang sounds like it hitting 7500 when you let out! Funny how completely different the sound.

[@04yfzkid]

I think you left 50 hp on the table by not strapping to the rim lol.

[@SloppyMechanics]

Learned my lesson with that on high hp stuff lol

[@toddcorey3190]

Not sure what’s going on, but I’ve seen them test it on dyno and got 400+ hp more on size matters KZbin, Richard Holdener’s page

[@Spooly_]

You're not Rob Dahm, give him back his billet!

[@myshoeisonfire]

mah EARS!!! lol

[@gsppuffer]

Dam I don't care what tire you put on that thing it'll probably just melt them in every gear

[@BeardedBeerNerd]

If he wants to sell the old one and it's still in good shape tell him to hit me up.

[@Turbogto_guy]

Brent Morente I might sell mine.......

[@infamousnova]

@@Turbogto_guy what's wrong with it

[@Lee-rc5en]

Can I trade in my cast? Lol

[@randalljames1]

I think I heard it squeal in surrender..

[@bentboybbz]

Your titles make no sense bro.

[@SloppyMechanics]

Please attempt to summarize better.

[@wobblysauce]

Powaaa

[@chodemaw455]

@@SloppyMechanics Truck fast

[@electronbeing5473]

Food good

[@bentboybbz]

You had too many rum and cokes and it sounded better in your head.

[@GigaDonk]

sorry for my ignorance i'm still using an hx40 on a 3.5L and i'm not up to date but isn't the vs racing turbos china turbos? is china turbos ok now? These prices are incredibly cheap.

[@davis1984100]

What ring gap do you guys recommend on a 6.2 on a turbo

[@dlawson8993]

Is it the .96 ar or 125 ar?