Champion Irons with flat tappet cam?

[nickb]

I am currently running 11.2 at 120 with my current combo thats in my sig, but was wondering what I could expect by installing some champion irons with a matching lowering intake without switching to a roller cam. any thoughts?

 

[turbofabricator]

About 5 tenths if your Turbo can keep up. No down side to ported iron heads except money. Do it and thank me later.

 

[bison]

If you added a turbo to that you have the potential to drop a second and pick up 13-14mph.

 

[nickb]

If you added a turbo to that you have the potential to drop a second and pick up 13-14mph.

Which turbo would you reccomend?

 

[bison]

After looking at your sig I realized that you probably don't have a ta49. It says 62 turbo. You'd have to be more specific. If that's a te62 or 6262 you have enough to run mid 10's. With more you could even faster. Ive gone 134mph @28psi with an old cast t66 with iron heads, cam, intercooler and a decent tune.

 

[nickb]

te62 with .85 exh housing, should be ok with this turbo right?

 

[bison]

te62 with .85 exh housing, should be ok with this turbo right?

I would never run a .85 with that turbo. Up to 124mph I'd use a Garrett .63. Beyond that I'd use a precision .63 or Garrett .82. The compressor will run out before the ex housing is a problem. I can upgrade that compressor to a forged milled wheel that will support another 75hp and its lighter than the compressor you are running. With that it will be able to trap in the 132-133mph range and pick up spool.