Turbo size for an E16S

dburone · Apr 26th, 2004, 02:39 PM

I´m about to buy a turbo for an E16S engine, which size is correct?
T25, T28? A T3 may be to big for 1600cc.

Myetball · Apr 26th, 2004, 10:45 PM

T25 will be plenty. Assuming you aren't changing the compression ratio, you'll only need about 5psi and the T25 will be more than adequate.

dburone · Apr 27th, 2004, 09:01 AM

Quote:

Originally Posted by Myetball

T25 will be plenty. Assuming you aren't changing the compression ratio, you'll only need about 5psi and the T25 will be more than adequate.

So you´re telling me that with my actual compresion i can´t put more than 5psi?
How could i calculate the final compresion?
Whats better, 9.4:1 and 5psi or 8.4:1 at 7 psi?

Myetball · Apr 27th, 2004, 04:50 PM

With the compression of the E16 and the strength of the bottom end you'd be risking engine failure if you try and crank up the boost too much. 8.4:1 at 7 psi is safer and a lot of fun. 9.4:1 at 5psi will be alot of fun but it's putting a little more on this engine than it was designed for. Still, the E16 is a tough little engine.

dburone · Apr 28th, 2004, 09:16 AM

I´ve made some thinking and i get these results in effective compression ratio:

8.4:1 with 7 PSI = 12.40:1
9.4:1 with 5 PSI = 12.60:1
9.4:1 with 7 PSI = 13.88:1

I see that the best is the first option, but isn´t it to much anyway? Doesn´t detonation apear over 10.1 ratios?
The fuel i get here has 97 octanes, but we have to remember thet the engine doesn´t have any control over detonation and its carburated.

Isn´t it to much pressure??