Quote:
Originally Posted by quattrorunner
Soooooo,
6 years ago I spun out and didn't push in the clutch In time to prevent engine going backwards. I pulled the car off the road to do a backdate and now go to restart and find this issue. Sounds fine as far as no funny noises but it does sputter and backfire. Also some cylinders are not igniting properly.
So it's time to open up.
I want to add power. My current cam is sc grind and I'm thinking gt2 evo and maybe add larger turbo to gt40 up from gt35. Currently my power tune isn't even done but I was having reduced power above say 5500rpm. This is why I want to try another cam but the tune is also suspect. Beside the point of this post.
What I'd like are some recommendations while I'm doing this?
I'm considering twin plug
Also cam
Also upgrading valves and springs?
Engine is Carrera based unsplit block with JE pistons and turbo cylinders. Efi of course, half bay bell intercooler.
This engine is probably 5 hours fresh.
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After 6 years sitting, you may want to consider a partially clogged injector. I would try pulling the plug wires one by one while idling. M2CW
May I ask what EFI system you are running and what type of timing pickup you have installed?
Insofar as wanting more power, I do agree with you that the tg35 runs out of umph. In my case it starts 500 rpm later at 6k and I think that my big wide intercooler my have something to do with it.
If you are going for twin plugs, then consider wiring coil switches for cylinders top 1-3 and bottom 4-6 on one and top4-6 and bottom 1-3 on the second switch. This will help you diagnose plug and plug lead issues easier.
Cheers,
Johan