BLINGOLE

iTrader: (5)

Do it! http://www.youtube.com/watch?v=LnbpJ4i5I7o Just do me a favor and put decent valve springs and at minimum a ls6 cam.

Chicago TDP

iTrader: (3)

I have a 4.8L, Vic. Jr, 160 # inj, TC76 with a T56...working on the tune right now...shooting for 10's with conservative tune...

BLINGOLE

iTrader: (5)

you know i have a 4.8 sitting in my garage, and soon my car will be down for me to forged my ls2... i might just stick it in my car and turn it to 22-25 lbs boost and see what happens.

the onyl crappy part is i dont care if i stick a rod threw the block but i dont want to ruin my tc76 exhaust turbine if a piston chunk goes threw it.

71 chevy

iTrader: (18)

hehe. so buy an ebay 76mm for 200 and put the tc76 away for the "real" motor. hehe

FMX05

iTrader: (3)

The guy with the RST 4.8 combo did it at my home track. I think it was a PT76GTS/4L80E combo. It was making 620whp on E-85. It still has a few more tenths in it on clean pass. He hit the limiter on the 1-2 shift a few times and still went 10.88@125. He also still had the 20" wheels on the front. On a clean pass with a set of slicks it should run 10.6x.


Edit: Here is the video http://www.youtube.com/watch?v=odPGYg7FNow

Ratfinkracing

I've got a 4.8 laying around and a 94 f-body hmmmm anyone want a supercharged LT1 I'm wanting an LS in my car as well and 6.0 are no were to be found who makes turbo headers for f-body's ?

drbizerk

Same.
hope this thread isn’t 509 years old and I’m the new jerk in town for resurrecting it.😬

Kfxguy

iTrader: (1)

There is a date stamp above each post. All you gotta do is read what the date is. Its 8 years old...........

Kjduvall

Thread is only 8 years old , but some things don't change. And a boosted 4.8 is one ove em........... I like mine .

cb2004mj

I'm running a stock 4.8l with a sloppy stage 2 cam(the elgin brand one) PAC 1218 springs and that's it. BR7EF plugs, nnbs intake, and a big s480 turbo pushing 20psi. on low timing(11-12 degrees range) we are pushing low 600 whp in a 3200lb Colorado. just made a 6.7 pass at 104 mph in the 1/8th. btw this is stock heads, stock head gaskets, stock head bolts reused, etc etc etc. no meth, no nitrous(yet lol) and shes getting beat on street and strip.

JoeNova

Low 600s on 20 PSI? You have a major issue somewhere lol.

Kfxguy

iTrader: (1)

that’s what I was thinking. I plan on 18-20psi in my 5.3 I’m building right now and I was disappointed in seeing that.

for comparison, 5.7 in my 3800lb car (no driver) went 102mph in the 1/8 on 12 psi.

Mavn

iTrader: (3)

Low 600s and only trapping 104 on an s480 on 20# . Youre on 7 cylinders or something lol

truckdoug

iTrader: (25)

*secretly removes timeslips from my gbody thread*

Kfxguy

iTrader: (1)

why? I kinda lost track....do I need to get caught back up?

JoeNova

LOL. That 2.0 60 foot isn't helping you. My quarter mile was a full second faster and 1 MPH slower.
I don't remember seeing your boost ramp either. You need to be more aggressive on that whole car.

cb2004mj

ok just to fill everyone in, that's LOW timing, horrible 60' and the 600hp was a ballpark guess based off trap speed as this POS has never seen a dyno. so i could be making 700, 750, 800. i have no clue haha, its not a slouch tho...even though the driver can use some work

Kfxguy

iTrader: (1)

we werent insinuating its a POS.....

JoeNova

I wouldn't say that 12 degrees on 20 PSI is low timing. That's about normal pump gas + meth timing for that PSI.

cb2004mj

I'm not on pump 93 I'm on E85. And joenova I was the one stating it's a POS. I've done accepted it's a turd....it's my turd tho, and I like this shitbox lol.