Analyze my dyno sheet
Hey guys, just wanting to get your opinions on my dyno graph. (Sorry about the size...but bigger is better, right?)

The thin line is my old setup, the thick line is the new setup.
Old setup:
Stock USDM B18C1 top to bottom
CAI with K7N Cone Filter
PerformerX
F1Spec 4-2-1 Header (try-y with 2-1/2" collector)
Shitty Cat
BuddyClub Spec2 Exhaust (2-1/2" the whole way)
The car went 13.918 @ 99.66MPH at Cayuga Dragway in Ontario, Canada
New Setup:
GSR Block & Head (Mild P&P & 3 Angle Valve Job)
LS Crank and Rods
RS Machines ITR Pistons
ITR Cams
Same I/H/E, but the cat is now gutted.

The thin line is my old setup, the thick line is the new setup.
Old setup:
Stock USDM B18C1 top to bottom
CAI with K7N Cone Filter
PerformerX
F1Spec 4-2-1 Header (try-y with 2-1/2" collector)
Shitty Cat
BuddyClub Spec2 Exhaust (2-1/2" the whole way)
The car went 13.918 @ 99.66MPH at Cayuga Dragway in Ontario, Canada
New Setup:
GSR Block & Head (Mild P&P & 3 Angle Valve Job)
LS Crank and Rods
RS Machines ITR Pistons
ITR Cams
Same I/H/E, but the cat is now gutted.
Really? I guess I should also mention the car is stripped down to two seats and a dash. I'm GUESSING that it's around the 2100lb mark...I don't really know.
The guys at the shop said their dyno reads low. Typically 5-10% apparently.
I've also got the '98 spec JDM ITR tranny in it. I made the pass on a pair of old RA1s (I'm an autocross guy). It was also a coolish fall evening.
I still have the slip...somewhere. I'll post it up.
Any other input?
The guys at the shop said their dyno reads low. Typically 5-10% apparently.
I've also got the '98 spec JDM ITR tranny in it. I made the pass on a pair of old RA1s (I'm an autocross guy). It was also a coolish fall evening.
I still have the slip...somewhere. I'll post it up.
Any other input?
Last edited by Snizzoop; May 17, 2010 at 07:11 PM.
The 13.9@99 was on the old motor. The old setup is the thin line...155HP.
I figured you would be intersted in seeing this. I read through most of your PerformerX vs stock GSR manifold thread.
Oh, NOW I get it. Thanks funny man...hardy har har.
Found my timeslip. It is as follows:
R/T: 0.099
60': 2.170
330: 0.000
1/8: 8.980
MPH: 79.65
1000: 11.651
1/4: 13.918
MPH: 99.66
Is that good enough? Do I need to take a picture? Should I post up my 14.0 slip too?
Found my timeslip. It is as follows:
R/T: 0.099
60': 2.170
330: 0.000
1/8: 8.980
MPH: 79.65
1000: 11.651
1/4: 13.918
MPH: 99.66
Is that good enough? Do I need to take a picture? Should I post up my 14.0 slip too?
Trending Topics
The 13.9@99 was on the old motor. The old setup is the thin line...155HP.
I figured you would be intersted in seeing this. I read through most of your PerformerX vs stock GSR manifold thread.
Found my timeslip. It is as follows:
R/T: 0.099
60': 2.170
330: 0.000
1/8: 8.980
MPH: 79.65
1000: 11.651
1/4: 13.918
MPH: 99.66
Is that good enough? Do I need to take a picture? Should I post up my 14.0 slip too?
I figured you would be intersted in seeing this. I read through most of your PerformerX vs stock GSR manifold thread.
Found my timeslip. It is as follows:
R/T: 0.099
60': 2.170
330: 0.000
1/8: 8.980
MPH: 79.65
1000: 11.651
1/4: 13.918
MPH: 99.66
Is that good enough? Do I need to take a picture? Should I post up my 14.0 slip too?
So basically, increased the compression by 1 point to 11:1, a little larger displacement 87 to 89 stroke, PnP and ITR cams and you end up with 30 more horsepower. Very good plan.
I guess I shouldn't have read to much into this. Now that I had a night to sleep on it I have a few different ideas.
Dynopack to Dynojet is about 10whp or so, Churchs' web site.
My 187 would be about 197-200 on a pack. Honestly I think your down on power also. Maybe ITR cams don't like the plenum size of the Performer X.
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