What's Holding Me Back? 275Rwkw

[rapid6turbo]

On a side note, would a 2.5" cat back system off an XR8 with quad tips fit the XR6T? I know the front section would be single entry rather than dual.

[BRK]

Ah....... if that is the factory cat-back ba/bf xr8 system, it has more back pressure in it than the stock xr6T. Exhaust Back pressure test is not hard to do but you do need to drill and tap the exhaust system to insert the probes off the guages. A 100 cell cat is almost no cat at all btw.

And - I respect the other opinions on here and will never dispute the results obtained - but I still say the cooler is the issue.

Edited 11/11/14 11:47 PM by BRK

[rapid6turbo]

I went and measured the intercooler. Its 450x300x76mm, but the core is stamped ADRAD top and bottom. is that still a Monza or just an ADRAD made core??

[rapid6turbo]

** Update from tuner*

They said I probably need a bigger intercooler or there is a restriction in the exhaust. Intake temps were not too high so appears to be a flow issue rather than lack of cooling.

[rapid6turbo]

Measured up cat and its 3" inlet and outlet, 4.5" body.

[rollex]

Take it to a tuner who is willing to measure and test all of these things for you and won't stop until they get the result you are after. There is only so much you can do yourself.

[rapid6turbo]

I am happy to fix things where I can and keep costs down. I believe the tune to be the max power it can produce currently.

[discostig]

** Update from tuner*

They said I probably need a bigger intercooler or there is a restriction in the exhaust. Intake temps were not too high so appears to be a flow issue rather than lack of cooling.

See!

Get a better cooler and exhaust, do skids, ______, profit!

[rapid6turbo]

If intake temps aren't too high, doesn't that suggest that the cooler is okay? And more likely the exhaust?

[rollex]

Drop the exhaust and see what happens