Went to dyno today

four six · Apr 23, 2007

251.8 RWHP 276.62 RWTQ

Maybe I was just expecting too much but I really think those #s are low. It was a dyno jet BTW. A/F was pretty good, Ill scan my sheet later

Stan Weiss · Apr 23, 2007

What were you expecting? The PI swap should get you to 260HP flywheel. Your cams and exhaust have gotten you to about 300HP flywheel.

32valves · Apr 23, 2007

four six said:
251.8 RWHP 276.62 RWTQ

Maybe I was just expecting too much but I really think those #s are low. It was a dyno jet BTW. A/F was pretty good, Ill scan my sheet later

This is a 98 GT remember, a 98 Cobra takes FULL BOLT-ONS(headers, full exhaust, intake, spacer, udp, tb) and dyno tune to get to 277~whp

SilverBullet00 · Apr 23, 2007

It's had the PI swap though, so I would think it should be around 265hp and 290tq

four six · Apr 23, 2007

I don't know. Like I said I just had too high of expectations

chrispy98cobra · Apr 23, 2007

a 98 Cobra takes FULL BOLT-ONS(headers, full exhaust, intake, spacer, udp, tb) and dyno tune to get to 277~whp

My 98 Cobra doesnt have an intake or headers and it makes 276rwhp

Tim2002GT · Apr 23, 2007

four six said:
251.8 RWHP 276.62 RWTQ

Maybe I was just expecting too much but I really think those #s are low. It was a dyno jet BTW. A/F was pretty good, Ill scan my sheet later

Has your car been dyno tuned with your current setup? I would have thought that your numbers would have been higher too.

Kilgore Trout · Apr 23, 2007

Are those corrected numbers? Was it really hot and dry when you did the pulls?

CobraRed_96_GT · Apr 23, 2007

my guess w/ those mods would have been 255hp 283 or so tq, so it's not that much off. When did you last tune it?

four six · Apr 23, 2007

Those are my current numbers

PI swap
VT cams
exhaust

He "tuned" it with my diablosport. All he really did was adjust the WOT fuel and check the timing.

KT yes those are corrected (SAE)

RoadconeTuning · Apr 23, 2007

its a little low... i would expect 270's or so... if you did the heads from a PI motor then your in the mid 10:1 compression and should have much better flow... and with a set of longtubes and a good tune should be over 300whp... whoever tuned your car needs to do a lot more work or you've got some crappy rings.

98gtblue · Apr 23, 2007

You need LT's!

four six · Apr 23, 2007

Yeah Im hoping I don't have really bad rings.

Does anyone know where I can get a mail order tune for the diablosport?

four six · Apr 23, 2007

98gtblue said:
You need LT's!

I know, I know but I need $$ first. Im kinda broke after all of this

nesqwick_05 · Apr 23, 2007

dont let these numbers put u down, remember hp doesnt win races, tq does .i would be happy with those numbers if it where my car, and after all this i think you need some spray

02TruBlueGt · Apr 23, 2007

how you like my 4.10s man?? numbers seem aite. Also to the guy who said a 98 cobra takes full bolt ons to get 277 rwhp you got something wrong. My friends 96 cobra with lt's xpipe catbaclk (all bassani) and C&L intake make 295rwhp and 295 rwtq.

goshia · Apr 23, 2007

four six said:
Those are my current numbers

PI swap
VT cams
exhaust

He "tuned" it with my diablosport. All he really did was adjust the WOT fuel and check the timing.

KT yes those are corrected (SAE)

How many miles do you have on the engine???
Just contact Diablo and they will make you a custom tune.

MyBloodRunsBlue · Apr 24, 2007

my SAE numbers are listed 245hp/290tq with the listed mods below. you shouldn't be too disappointed those aren't shabby numbers at all for a 98 GT

four six · Apr 24, 2007

02TruBlueGt said:
how you like my 4.10s man?? numbers seem aite.

I LOVE them. Thank you again They help with the city driving a lot. I also went on a little road trip and they were not bad at all. 4.10s FTW

four six · Apr 24, 2007

I know the #s aren't bad for JUST a PI swap but my big thing is that I have VT stage 1 cams too

Went to dyno today

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