My current mods are Sikky - Joez exhaust and intake. My baseline was 368whp with exhaust and intake. I dynoed my car today after logging almost 500 miles on sikky and the car produced 369whp on the first run and 377 on the second.. so that 9whp gain only ... what can the issue be??
P.S: recently there was engine oil leak.. so i took the car to the installer and he had to remove one of the headers to fix the issue which was done yesterday..

 

Could be many things. Different temperatures, air pressures, brand of gas, etc can cause a variance.

 

what kind of gains where u expecting?

 

That sucks man, should have been at least 400 to the wheels, is the check engine light on?

 

+1

Have you scanned the car to see if it threw any codes? What where your a/f numbers like?

 

Would you mind posting your dyno charts for us to review? 377 whp no matter what the Density Altitude, is not typical for your setup.

 

Did you use the same dyno? Some dyno's are great for high numbers lol!

I like the red HSV in your sig too, great Aussie muscle car right there!!!

 

Based on your results from both the JoeZ exhaust/sikky headers, I think its safe to say that there is either something wrong with your car or the dyno. There is no way you should be consistently disappointing mod after mod.

 

Baseline: JOEZ Exhaust + Intake:


POST Headers:

 

going in a few days to a different dyno since this is one of the variables that maybe causing this

 

Which gear?

The correction factor should be SAE not STD. Unfortunately it will be a lower number.

This seems to be all too common an occurrence with our cars. I would put another 500 miles on it personally.

~Dv8

 

6th gear..

 

Sorry for the multiple threads, but I thought that started a new one with confirmation is better. OK so after my post sikky dyno, I acheived 377whp, which is a 9whp increase from the baseline 368 with joez exhaust and intake in DYNO SHOP #1........ I decided to visit my second dyno shop where I also have a baseline with. My baseline in DYNO SHOP #2 was 371 with Joez exhaust and intake which is normal. The SAD part is that I dynoed 375whp with the addition of SIKKY. So to conclude, the issue is not from the dyno shop, leaving us with either the car or the headers. What do you guys suggest I do? 5whp gain is really frustrating... after spending almost $2000 on the headers and the install. Dyno Below with both baseline and post headers.

 

I asked you previously if you had scanned the car for any codes, that would be a good start. Maybe you blew a fuse or messed up an 02 sensor. Raise the car on a lift and check for exhaust leaks...

 

how to scan for codes?? And yes, the car had a leak from the dipstick I think.. and then it was fixed by the installer a few days ago... well he claims he did :/