dyno numbers / upgrades done

[PhillipsLT5]

423 RWHP
375 Torque
Ported heads & top end, SW Headers, Random Tech Cats, Corsa Cat Back, Stock Flywheel/Clutch, 4.10 gears, K&N open lid, 11.4 compression, Haibeck tune/91octane, thats all we can get out west, secondaries removed, stock cams at 95 timing, Bill B Trans

[RICKYRJ1]

Originally Posted by Paul Workman

My mods - see below... Future mods being considered:

63mm TB
electric water pump
Dyanamax muffs

(Hoping these get me closer to 445-450 ish at the wheels w/o compromising drivabilty.)

P.

My dyno #'s are the same as Paul but my mods are a Haibeck 500hp package. Maybe in the future I will do Pete's cams and an x-pipe with new exhaust. I have a Corsa now

[C4Fanatic]

The dyno-sheet I got from Mike with the car, dated 1/1/10 shows:

rwhp: 401.3
rwt: 365.4
He told me these numbers were with one bad injector and it was never back on the dyno after he replaced all of them.

I have no idea of the mods on the car, rumored to have gone to LPE once and then to VetteDoctors at some time later in it's life. Looks like it's had a little top end polishing and he mentioned a bigger throttle body. It has 4:10's in the rear and a shorty shifter.

I do know that it has a habit of eating rear tires and large amounts of Premium...

[Paul Workman]

Originally Posted by RHanselman

1991 16k miles

613.19 RWHP
576.97 RWTQ

Raptor Twin Turbo @ 8 psi (engine built for 15 psi)
Raptor 374 CID 9:1 comp
Stock crank rods and CAMs
Custom Pistons
Head Studs
Jeal Headers
R/T CATs
Up graded fuel system
Corey Henderson Tune

YEOWZAH!! Dat what we're talkin' about!!

A few qestions, por favor...
Ron, your turbos are mounted near the differential, if I recall? If so...can you tell us what kind of lag there is with tubes being so long?
And, are the tubes ceramic coated back to the tubos?
6-8# is what I've seen recommended for a max on 10:1 to 10:5 compression motors. 8# on a 9:1 should be pretty "safe", I suppose on stock rods. Any plans to boost it a bit more?
Are you using the stock ECM, or ??


P.

[Paul Workman]

Originally Posted by C4Fanatic

The dyno-sheet I got from Mike with the car, dated 1/1/10 shows:

rwhp: 401.3
rwt: 365.4
He told me these numbers were with one bad injector and it was never back on the dyno after he replaced all of them.

I have no idea of the mods on the car, rumored to have gone to LPE once and then to VetteDoctors at some time later in it's life. Looks like it's had a little top end polishing and he mentioned a bigger throttle body. It has 4:10's in the rear and a shorty shifter.

I do know that it has a habit of eating rear tires and large amounts of Premium...

Well that tire/gas problem is due to a loose nut behind the steering wheel, doanchaknow!

P.

[C4Fanatic]

Originally Posted by Paul Workman

Well that tire/gas problem is due to a loose nut behind the steering wheel, doanchaknow!

P.

DOH! Busted!!!

[Aurora40]

Ported intake/injector housings, 63mm TB
Headers, stock exhaust with an LT4 resonator and Dynomax mufflers
Haibeck tune (as well as all the work)

Best 1/4 mile: ~ 12.5@116mph

[boostedmaxPSI]

Would be good to know how much porting was done when stating ported heads/ IH/Plenum. If known...

[LGAFF]

36mm ported IH with headers will get you to about 390 RWHP....

[sammy]

is your 91 a zr1 supernatural 475?i have a 92 supernatural 475 without the aero bodythat made 392 rwhp with the only mod being stainless works headers . totally stk it made 373 rwhp.