As last part of my new engine, with stroker, ported head with oversized valves, GT35 turbo, Motec Ecu, Apexi AVCR, 1000cc injectors, 24x12x3 intercooler with 3" custom pipes, and so on, i have decided to purchase a Magnus intake manifold, with 3" throttle body. I really love its design, but in terms of power, what kind of gain should i expect from it?
What kind of power could be a good result with my mods, considering that here in Italy we have a 95 RON gasoline that could be compared to US 91 oct, or as best option a 99 RON, similar to US 93 oct?
One last thing, the stock ignition will be still efficient, or i have to think about purchasing a better one?
Thanks in advance.
Gianluca.

 

Huge gains. I made 25 WHP with a stock turbo EVO, you can imagine how much with a GT35R.

 

Ok, thanks....
With all my mods, what kind of power should i expect?
Is it a reasonable target 400 whp on 95 ron fuel (91 oct US)?

 

with that turbo, guys here in the US are making over 500whp. with your Motec, you should be even higher.

 

How the hell should we know. Put it on a dyno and find out.

 

First of all, 91 oct gas will be your limiting factor. The GT35R likes boost. You ain't gonna be able to do that on 91 **** water. Your choices are higher octane fuel or alcohol/water injection. Additionally, as you approach 500whp, your ignition sytem will rapidly reach it's level of competence. Consider an upgrade.

 

Finding a better fuel here in Italy is a great problem, the best i can find at pumps is 99 ron, similar to your 93/94 oct, and i don't like the idea of using race fuel only for the simple reason that it's not practical, and sometimes i use the car for short travels. I must say that with Motec i used to have 26/28 psi of boost with normal titanium TME turbo, without detonation problems, i hope that i can do the same thing with teh new turbo. One last thing, my GT3540 has 0.82AR, is it good for stroker kit combination?

 

As regards water injection i'm really interested in this solution, i will try to search some topics here on the Forum, but about the ignition? HKS DLI II is enough, or i have to choose AEM C2DI plus new coils? What i need for a complete setup with this one, only new coils and normal cables? Could somebody help me telling which kind of coils i have to purchase, if possible online?
Thanks in advance for patience.....

 

HKS DLI II will fry your coilpacks. I have seen it first hand.

 

what ignition would u recommend then?

 

stock up to 450 WHP then the Switzer individual coil system. Pricey though.

 

XS Engineering or AMS also make (distribute?) an upgrade system for the Evo. Not quite as eloquent as Switzer's or Buschur's, but more than adequate. Bushur also makes a alcohol/water injection unit that would resolve your low octane problems.

 

A GT35 and GT35R are not the same turbo. I don't know if this is a simple omission, but I thought I would make this important point just in case you intend to use a GT35 and not a GT35R.

 

Can you elaborate more on this? I've read about one car on here where the DLI II fried the coil packs where there was already a problem with the ignition. That's the only bad thing I've heard. Buschur and Top Speed both recommend this unit.

 

Ohh, you're right, it was a omission, i intended GT3540R, dual ball bearing, with 0.82AR, excuse me for having caused confusion, and excuse me also for my bad english, perhaps i'm making gigantic mistakes, but i' m really doing my best....