5.1l stroker problem ???
#1
5.1l stroker problem ???
allright let me tell you about my mods and what the problem is
5.1 l 3v - comp cams stage 2 nsr
- bbk long tube headers
- livernoise cam phaser with lock outs
- bbk high flow cats
- flowmaster outlaw axel backs
saleen cold air
- msd coil on plugs
- fresh spark plugs ( motorcraft )
so previously i was dynoed in california at 91 octane at 358 . rwhp
fast forward i now live in northern va , got my car to a show and wanted to have it retuned for 93 octane
i was sitting at 300 rwhp when i came in left at 307 rwhp ??
what could the loss of power be , my tuner guy says that number of 358 is resonable but he doesnt know why im so short of it . i did the ghetto way to do a compression check ( by disconnecting the coil on oplugs a cylinder at a time ) and it seemed to be fine , this is a low compression block with dish pistons , im trieng to get ready for a kb supercharger , right now all i need is that tr- 6060
the 5.1l is a coast high perf block , iron block
so does anyone have an idea , i know the temperature does make a difference but not over 50 rwhp ( it is hot as hell and humid )
so i m in need of some advice my tuner guy doesnt know either why im not able to get those numbers
im getting depressed by this car , if i didnt have my 67 pontriac project i would trade my 07 in , i do love her but it so frustrating
5.1 l 3v - comp cams stage 2 nsr
- bbk long tube headers
- livernoise cam phaser with lock outs
- bbk high flow cats
- flowmaster outlaw axel backs
saleen cold air
- msd coil on plugs
- fresh spark plugs ( motorcraft )
so previously i was dynoed in california at 91 octane at 358 . rwhp
fast forward i now live in northern va , got my car to a show and wanted to have it retuned for 93 octane
i was sitting at 300 rwhp when i came in left at 307 rwhp ??
what could the loss of power be , my tuner guy says that number of 358 is resonable but he doesnt know why im so short of it . i did the ghetto way to do a compression check ( by disconnecting the coil on oplugs a cylinder at a time ) and it seemed to be fine , this is a low compression block with dish pistons , im trieng to get ready for a kb supercharger , right now all i need is that tr- 6060
the 5.1l is a coast high perf block , iron block
so does anyone have an idea , i know the temperature does make a difference but not over 50 rwhp ( it is hot as hell and humid )
so i m in need of some advice my tuner guy doesnt know either why im not able to get those numbers
im getting depressed by this car , if i didnt have my 67 pontriac project i would trade my 07 in , i do love her but it so frustrating
#3
i am worried that my engine is having problems the dyno the new shop uses is a dyno jet , the other shop used an dyno dynamics , i have heard some dynos producing lower numbers but not this low
#4
Again, its just a TOOL! Does the car feel like its down on power?
I can manipulate a dyno to say you have 30hp, or 3000. If the car feels fine, and isn't throwing any codes, you're probably going to be OK.
You can datalog to make sure
I can manipulate a dyno to say you have 30hp, or 3000. If the car feels fine, and isn't throwing any codes, you're probably going to be OK.
You can datalog to make sure
#5
the car doesnt feel any different , but there is something wrong with it , it dies sometimes while in traffic and sometimes goes into limp mode but no codes so im thinking i have floating valves
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