I have AC. have you folks tested if that timing cover needs more trimming if no AC compressor?

 

I haven’t had AC for years so I don’t have any feedback

 

That's my point. will the serpentine belt going to the steering pump not touch the bulge on the cover? mine was trimmed a good amount but I have AC so not sure why my guy did that lol

 

oh shoot I misread it

ill look next time I’m out in the shop

 

err actually nm. I just realized you would still have an idler pulley

 

You have to clearance the center hole for the hub, and you have to make the face of the cover flat, and you have to notch the bump that covers the oil pump gear nut.

 

New motor in, rings seated, tune checked out. Went from R2 cam’s to S2 for this build. Exited to see how the midrange difference is.

 

Sounds real good!

 

Man this sounds so smooth. I feel mine sounds like a clattery mess in comparison.

 

Thanks Robbie!

we are running an aluminum exhaust for weight reduction. They sounds pretty hollow and Tingey so we added aluminum resonators to help the tone and it was an improvement.

At the track the factory welds on the resonators broke.



we thought it was due to the heat and no lift shift of the sequential creating a loud pop when shifting.


then out to also broke in the same place on Phouvanh’s car that makes less power and doesn’t have NLS

 

Aluminum exhausts are tricky to get right. They tend to need bracing or you have to use pretty thick walled stuff. Sometimes titanium ends up being lighter just because you can use a much thinner wall without it cracking.

A shop I used to work at tried aluminum downpipes for Subarus once upon ago, you could watch the downpipe grow from heat expansion during a dyno pull haha.

 

Ti isn't the best for exhausts anyway.
Why not use thin wall Stainless instead?

 

aluminum is cheap and easy. But we has SSxoarts on the way to redo it

 

Yea i made mine out of stainless dairy tube(thin wall) and its pretty light. Probably not as light as titanium but alot cheaper.

 

Cheaper and breaks less