salspmp

iTrader: (8)

Last Dyno:
5.3l pp stage 2 heads
231/237 TSP cam
Volant intake
2500 Stall
QTP headers and ORY
Corsa Cat back
STOCK INTAKE/TB/maf

379 rwhp

Present Dyno

Last Dyno:
5.3l pp stage 2 heads
231/237 TSP cam
Volant intake
4000Stall
QTP headers and ORY
Cheap Magnaflow (needed it quiter)
Exhaust cutouts (not opened)
Fast 90/90 setup
Stock MAF/with billett ends

373rwhp

Durning the 90/90 install I had to pull the heads to replace lifters. Isky lifters now in place. Tuner stated that he pulled some advance versus last tune, and that his new dyno (dont know what kind) has shown numbers just slightly lower than previous dyno. Shouldn't I be near 400?

f-bodyfanatic

iTrader: (2)

If I'm not mistaken I believe going with a 4K stall would drop your numbers. i'm not sure how much it would but I've heard that it does. But I could just be pulling that out of my ***.

3rdgen92maro

iTrader: (20)

agreed the 4k stall is eating up some power for sure but I wouldn't be to concerned with the dyno numbers. I say take it to the track and see what she does. I bet you pick up alot with that converter and FAST.

firefighter813x

iTrader: (6)

Was this on a Mustang dyno? I dyno'd 387 SAE with a 230 cam and a Vig 3600-3800 converter with stock heads. That's very low if it's a Dyno Jet. I would have guessed at least 420 or so with that setup.

3rdgen92maro

iTrader: (20)

OP-what rear are you running in the car?? I see its says 4.10 moser is it just a geared 10 bolt? Also was the converter locked or unlocked during the run? If it was unlocked that is why your seeing a drop in RWHP.

MikeG

iTrader: (33)

If the converter was locked for both runs, then the converter swap shouldn't matter.

ARCTIC '00

If it was a mustang dyno then that explains it. If not then those numbers are very nostalgic for a H/C car.

JayplaySS

iTrader: (15)

Mild heads and a mild cam with a 4K stall, 375-380 is not that bad.

ZMONSTER!

iTrader: (9)

it seems the definition of mild cam keeps getting bigger and bigger! Remember when 224 was to big to DD?

Numbers don't sound too far off. Which rear end/dyno?

Mazzenger

iTrader: (5)

Not an exact comparison. You changed lifters, exhaust and converter with the FAST.
The lower number could be due largely due to the 4000k stall.
My 3500 stall dynoed 420rwhp unlocked, but my 4000k stall dynoed 392rwhp unlocked.
But the car traps higher and runs quicker at the track.

1Bad00SS

iTrader: (2)

That is FAR from a mild cam..

Take the car to the track, auto dyno #'s are very subjective especially since you dyno'd on a different dyno than before.. those #'s aren't even comparable.

ARCTIC '00

You call that a mild cam? LOL


I do agree with everyone else's perception about the big stall having a drastic effect on the #'s. Still seems like it should make a little more w/ that cam + heads. Bottom line, take it to the track and see what it does.

salspmp

iTrader: (8)

I did not mention the rear end. This is running through a moser 12 bolt with 4.10's. But, both dyno tests were through that. The recent dyno was with the converter unlocked, but I beleive the first was as well.

My exhaust cutout were installed shortly after the headers on both sides. They were put in so it would be basically a straight shot out of the headers when they are open. I have to imagine that causes a fair amount of issues when they are closed.

I will have it at the track in one week. My best run last year, before the big stall and 90/90 setup was a 12.3. The track I run at is notorious for poor numbers.

Tuner thought that the ports on the 90/90 may not be right with the heads I am running due to milling on the heads. But, the 5.3l pp heads aren't milled that much are they? Also, wouldn't that have been an issue with my stock intake? He also stated that my MAF is holding me back as well. I have heard the stockers are good for quite a bit of power. How much is it holding me back?

MrElectric03

iTrader: (71)

Your running a different stall, different intake, on a different dyno. numbers are going to change. Take it to the track and compare your previous times to what you will run now...thats what matters.

Frost

iTrader: (45)

qft...

salspmp

iTrader: (8)

qtf???

ExceSSive

iTrader: (13)

I would say take it to the track...my A4 had identical numbers from stock to 90/90, and stock stall to Yank SS3600. At the track I went 2mph faster and .28 - .29 quicker.

Frost

iTrader: (45)

QFT = Quoted for truth

Carter01

iTrader: (11)

googled it, quoted for truth, quit feaking talking, wasn't sure myself on that one LOL

salspmp

iTrader: (8)

I'm going to revive the dead. Brought it to the track. Interesting night... 85 degrees, on a known shitting track. I grabbed the wrong lugs to run my slicks. I couldn't get below 2.15 60ft.... just roasted those damn tires!!!
Anyway, throttle got stock on run three... could have been very bad. Used quick thinking at 120 and got it unstuckl

FOUND THE PROBLEM. Throttle was not opening all the way. My guess is 75% to 80% open. Rubber breather tub was preventing throttle from opening all the way. FML!!! I'll get the problem addressed and most likely get it dynoed to make sure air fuel/etc is still ok at high rpm.