Willem @ Fuel Injection Concepts

iTrader: (2)

I talked to PTE since i get asked this question alot, people want to make more power than their 76 is making but don't want all the girth and header modifications of a large frame t6 turbo. PTE said they have in the past and can with no problem build hybrid GT47-88's that use GT42 T4 housings. Now, this turbine housing is larger than a GTS or comparable, but still not nearly as tight fitting as a GT47 housing. The GT42 compressor housing is much much smaller than the 47's housing. The only modifications most kits would need would be the downpipe, since the 42 housing is a little longer and has a 4" outlet, not 3".

I know people are going to jump in and say negative things about the inefficiency of cramming the 47 in small housings; so i'll admit it IS a compromise, but I think it is a great idea for people who don't want to hack up their cars/existing turbo kits.


PM me for pricing

Rusted40

so that would be like a GT4218

I never understood why companies dont just offer these options

I saw a custom GT4208(82mm) 408 combo dynoed and it was almost scary.

Willem @ Fuel Injection Concepts

iTrader: (2)

it wouldnt be a GT42 at all... its a full GT4788 with GT42 housings bored out... but i get what you're saying and I also agree with you. Sometimes people NEED compromises, cause at least they still perform better than what is standard.

hellbents10

iTrader: (10)

I am willing to bet a s91 would out perform in every aspect and is the same physical size as a gt42. A s88 for that matter wouldn't choke up as quit either.

70Stang

iTrader: (2)

Enough with the S stuff already...

hellbents10

iTrader: (10)

hahahaha, I knew you would be here right after me. Why not though??? We just need a back to back on the same car. The badest modified BW unit vs. the badest modded Garret in the same physical dimension like a 42 chassis vs. a s400 or a s91 in FI's case.

70Stang

iTrader: (2)

Yeah, we are getting kind of predictable, aren't we?


I would also like to see a back to back test.

Willem @ Fuel Injection Concepts

iTrader: (2)

get your bench racing out of my thread! lol..

njc.corp

what do u mean by compromise the 47 stuff in a 42 housing or the affect of hp- if the hp will drop- how much are we talking about 10,20,30-100 hp?

Thanks in advance-

Turbo LS1 SS

iTrader: (7)

good stuff bill :tup:

MIGHTYMOUSE

iTrader: (59)

yea they said it would not be worth the $$$ compared to their off the shelf pte-88, or at least that was this past spring when i talked to jim about it for my application.

Full Throttle

We have one of these on a a 274" V6 Buick that went 170+ in the 1/4 at 3550 lbs it is not that bad

Mike

VINCE

iTrader: (1)

The PTE-88 is a bad boy!! I would like to know how much more a the modified GT47 would be...

MIGHTYMOUSE

iTrader: (59)

and i would be very interested to know how you would attain the same pressure ratio of that v6 on an ls1 to get you there.

Full Throttle

That is an interesting point, I doubt you would, my point is that the turbo can make very good power in that configuration
Mike

99.9percenter

iTrader: (2)

Destroked Crank

turbo

iTrader: (10)

This has been around for a year or so. Works really well! There have been numerous series of turbos crammed into the 42 housings.

I plan to be running one soon as well.

NA$TY-TA

iTrader: (21)

I just dont see this being that much more efficent then the GT42.... It doesnt look like $$$ well spent like Mightey Mouse said. The GT42-76 with a T6 flange isnt that much bigger then a standard GT42 with a T4 flange.

Here we go again with the S-Series Turbo's
Im only saying that because the S88 and S91 are an EXACT fit and swap from the GT42-76. I know i did it.....
So i guess what im saying is how would a modified GT42/47-88 compare to an S88.

I know a GT42-76 and S88 are not even on the same plate... like comparing apples to oranges..... did it....

I guess if your only downfall was not allowing a T6 flange because the size for it with these above turbo's is not as problem when it comes to space.

Id really like to see what these will do...... what are we talking price Ball Park?????


Kyle

NA$TY-TA

iTrader: (21)

Did some research and found this posted before... man i love it when the search works LOL


Kyle

Willem @ Fuel Injection Concepts

iTrader: (2)

if the housings are constrained to the same physical size how is the S turbo turbine so much better?