Am I welcome on this forum, Seeking FE FI info. Options

[carlosfandango]

Guys and Gals

I want to learn more about FE modifying - specificaly generation 6.

No many people in the UK modify the Gen 6 FE with FI and I'm genuinely interested - and I presumed coming to a forum which deals with such modifications could be the place to learn.

However, my last posts on these threads went completely ignored.

Can I please be given a straight answer to the thread title as its a little off putting, and if i'm not welcome i'll sling my hook.

these are the threads http://www.6gc.net/forums/index.php?showto...71&#entry296771
http://www.6gc.net/forums/index.php?showto...69&#entry296769
- or is it more a case of my interupting a thread?

I am a member of the celica community and do not understand why I am being seemingly ignored? my posts are skipped past as if i'm on the 'ignore user' list of those following the threads.

I mean no offence.

Regards

Karl.

[Kwanza26]

To actually answer your questions... BTW, I avoid most discussions about boost and custom turbo set-ups because that's not my expertise, but as far as engine mechanics go... heh...

Anyway, yes, the 5SFE and 7AFE are both built to be light weight compared to their GE counterparts. They both have fairly mild rods and their pistons are dished, which serves partially as the combustion chamber. As for the FE head design, it's a great design for optimal torque in the most used "driving range". All of the things you mentioned, I'll confirm... except about the changes in the powerband.

To explain, the FE head is specifically designed to make low-mid range torque, and that's not really gonna change, not even with mild cams or a mild street port job. Perhaps some hardcore porting and some big lift/duration cams can alter things... but typically, the head's original function won't change much, even with boost. The powerband will become exaggerated with boost, but the characteristics will pretty much stay the same. If you notice with all of the other boosted FE heads, the engines almost always made much more torque than horsepower. This is related directly to the head design and in cases to the undersquared design (more so with the 5SFE than the 7AFE). In any case, the FE head is EXCELLENT for boost... every bit as good as the GE head, but only at a different rpm range, arguably, a more useable rpm range. For example, Paradise Racing (http://paradiseracing.com/) built a turbo charged 3RZFE powered AE86 to run 8's in the 1/4 mile. Their set-up... FULLY built bottom-end... STOCK FE head. That says a thing or two about the efficiency for the FE head, and it's ability to be force fed... All in all... if you have questions, typically, we have answers.

Seems like all of the cool topics happen when I'm gone and can't access the internet for days at a time... anyway... greetings from Minnesota!