View Full Version : Help
jay97lt1
02-06-2010, 10:21 PM
This is my dyno sheet what do u think
Wooshie
02-06-2010, 11:12 PM
What all is done to the car? I see on the dyno sheet it says a 383. What heads,cam,trans, gears,etc. Those numbers seem pretty mild for a 383. Also do you know what your elevation is? that can play a big difference on HP readings. Last question. What kind of dyno was it done on? Dyno readings are helpful,but you never know what you will do till you run it at a track.
jay97lt1
02-06-2010, 11:29 PM
383 11:1 ported and polished heads dont have flow #'s comp xfi 292 cam 1.6 roller rockers ported intake and TB granatelli mass air moroso CAI pacesetter long tubes ory corsa 3inch catback. someone told me that the dyno might not be right Dynocom dyno
M6 342's close to sea level
Wooshie
02-06-2010, 11:56 PM
My personal opinion is that those numbers are low. I would check that it isn't starving for fuel. I would make sure you have between 30-36LB injectors and your fuel pressure is about 43PSI. Most similar setups make between 380-410 WHP.
jay97lt1
02-07-2010, 12:01 AM
30lb svo's 43 psi fuel pressure I have a brand new AC delco intake and a booster inline pump
96LT1355Z28
02-07-2010, 12:05 AM
Make sure all your cylinders are working, I had lower #'s my first time out the dyno after a rebuild also. Turns out I had 2 dead holes, you should be more in the 370-390 hp range.
jay97lt1
02-07-2010, 12:15 AM
its firing on all 8
MoeHorsePower
02-08-2010, 07:57 AM
Hope thats not your true Air Fuel,16.1-18.1??
jay97lt1
02-09-2010, 09:46 PM
It is trying to get it fixed
Joker Z28
02-10-2010, 08:59 AM
In all honestly, I would get a different tuner...
harvickgm
02-12-2010, 11:38 PM
well, is it an auto or six speed? if you have a huge stall that can show very low numbers... honestly your AFR is way off, if thats correct your car is way lean.
and either you let out or your having an opti cutout on the top end. there are some serious issues that need to be looked at, but either its not tuned right or your having issues with the fuel system. or the AFR just wasnt hooked up right for the dyno pulls.
more information and we can really help you figure this out more.
Joker Z28
02-13-2010, 12:13 AM
I hear hit or miss stories about tunes from CSS.
Most of the people I know that got their tune from there ended up going somewhere else to get something fixed.
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