5s-fe 3s-ge head? Options

[myloth]

The 5s-fe and the 3s-ge,3s-gte are the same motor with different heads no?

Then why is everybody so juiced to swap in the 3s-gte?When couldnt use a 3s-ge head from late 90s on a 5s-fe and get about 200bhp without a turbo?

Or am i missing something?

I'm basing this on a 2.0l 3s-ge from late 90s having about 175hp and putting that head onto the stroker 2.2l block seems to make sense?

People talk like the 5s-fe is a different engine when its just a different head and longer throw crank?


Or could even a 3sgte head work without the turbo?

[Taskbot]

any time you try and bolt a different head to a different bottom things always get a little strange. I don't know if anyone has tried to do this really but I can imagine its because the 5S-FE internals cannot handle the revs and power that the 3S-GE head is designed.

I really have no experience with the S engine but with the 7A-GE and 9A-GE there's a lot of different and hilarious things you have to do to jimmy the thing into working condition and almost every build has different specs even though its supposed to be "bolt on"

This post has been edited by Taskbot: Aug 27, 2008 - 11:05 AM

[DEATH]

any time you try and bolt a different head to a different bottom things always get a little strange. I don't know if anyone has tried to do this really but I can imagine its because the 5S-FE internals cannot handle the revs and power that the 3S-GE head is designed.

I really have no experience with the S engine but with the 7A-GE and 9A-GE there's a lot of different and hilarious things you have to do to jimmy the thing into working condition and almost every build has different specs even though its supposed to be "bolt on"

?!? So much misinformation in that post. Please don't speculate when answering a question like this.

D-Man - I think he means N/A but yeah - Ice's engine is crazy.

OP - the answer is yes - it can and has been done before. The reason it's not done more often seems to be cost vs gain. - the ideas you posted were the right ideas but there is sooo much more to it than that and consequently alot more cost as well. For starters you'll need a standalone ECU and a bunch of tuning to get it running. That's the short answer - read Ice's thread for the long one.

[Taskbot]

any time you try and bolt a different head to a different bottom things always get a little strange. I don't know if anyone has tried to do this really but I can imagine its because the 5S-FE internals cannot handle the revs and power that the 3S-GE head is designed.

I really have no experience with the S engine but with the 7A-GE and 9A-GE there's a lot of different and hilarious things you have to do to jimmy the thing into working condition and almost every build has different specs even though its supposed to be "bolt on"

?!? So much misinformation in that post. Please don't speculate when answering a question like this.

Alright, I will try not to speculate that much but I was just thinking about the engineering and how it would work in theory. If you lengthen the stroke the rev limit would suffer and although the 5S internals are well proven I was unsure that they would handle a red line that high.