3S-FE Intake Manifold on 5S-FE, up to 40 hp?? specifics.... Options

[Silver94CelicaOw...]

So a while back, this was sorta brought up but i want more specifics on exactly how to do it....I think its a good performance option for the 5s-fe if its true. I remember 1bwilson said that you could take the intake manifold off a JDM 3s-fe and a 60mm throttle body and you could get gains of around 40 horsepower. I've searched everywhere online for more info on it, and havent seen much of anything. I would just like to verify that claim, and if its true.....

a.) Exactly what parts do you need to get it to work? Would the manifold be from the Curren's 3s-fe??
b.) Would about a 40hp gain be reasonable to expect?

Just a little more knowledge on this would be greatly appreciated.

[Silver94CelicaOw...]

**bump**

Cmon....i know that 1bwilson originally mentioned it in this thread and i figured that others interested in seriously doing this to their 5s-fe might be interested in the specifics.

[Kwanza]

Lemme give you my 2 cents...

This mod sounds more like a dreamer mod than an actual one. The 3sfe head is nearly identical to the 5sfe head and assuming the intake manifold swap will allow for better induction, it's very hard to believe that it'll give 40hp. I actually don't think the 3sfe intake manifold is any better than the 5sfe...for one, the 5sfe is a larger motor and makes better torque than the 3sfe, and two, the 3sfe isn't a performance motor, so if the induction can't be so much better that you'll need to upgrade your fuel injectors, to match the air induction.

Also, a note on practical engine mods...
Assuming the intake manifold swap is done... the engine won't automatically suck in more air because it's a larger ported manifold. It'll suck in enough air to operate at the most economical level. Intakes and exhausts work because they relieve stress and restriction that the stock equipment come with... because stock is designed for quietness and economy. Let's put it this way... if you can do forced induction through a stock intake manifold... then obviously it's not that restrictive...

I dunno...experiment... but it sounds like a dreamer mod to me... kinda like the fabled 7AGZE hybrid http://www.toyotacelicaonline.com/celica1/7ahybrid.htm

This post has been edited by Kwanza: Sep 15, 2003 - 7:29 PM

[west_minist]

What you have to look at is the cfm of the size of the manifold tubes to see if there are bigger.

The 3s is a 2l while the 5s is a 2.2l there. It sounds (base on torque figures), that the 5s manifold should be bigger or the same. If 1mm, forget it.

What you should try to do is to either buy some throttle bodies or look at force induction which is fairly cheap done properly. The gains to be hard with a 3s is a waste and should be put into a small turbo set with 2-5psi of boost.

All that is needed is a Apexi SAFC II and a boost controller Apexi AVC.

My small advice.

This post has been edited by west_minist: Sep 15, 2003 - 7:40 PM

[west_minist]

[Kwanza]

[Silver94CelicaOw...]

First off, the 3S-FE that he mentions in his previous thread was off a JDM engine and not a camry 3S-FE or anything.....

I just asumed that since he said it has been done before by N/A MR2 owners that i would look into it as a possible way to get more edge out of the 5S-FE. So can anybody verify this being done, and give specifics as to the parts involved if its true?

[snadman]

I can bet you for the same price of doing this, you could build your existing 5sfe to make more HP. I can bet the WebCam performance camshafts are cheaper to buy and install than to do a head swap. Some people claim 30HP from these camshafts (no clue if this is true), but I can highly doubt you will ever get 40HP out of this head swap. I will doubt you will see much of any gain.

[Silver94CelicaOw...]

You mean the intake manifold....right?

[1bwilson]

The 5sfe manifold is said to make the 4th cylinder run lean due to something about the pengulim (sp?) I dont know. I have read this on the mr-2 boards and also been told it from Nuke on c.net. I know that Jim snoodgrass has one on his 2 along with a 65mm TB. There was a post about this over there so I'll try to find it and link it to here.

-Bryan-

[1bwilson]

here

Not the one I was looking for but along those lines. I'll look for more.

-Bryan-

[Kwanza]

[1bwilson]

I dont know, Thats just what I have read from many people that have "done" it already. The 5sfe IM has 1 runner for each cylinder and the 3sfe one has 2 along with smoother bends. That and larger TB have said the see gains as much as 40 hp or so. (As much as) = a fully built head and all to make the most of the IM.

-Bryan-

[97GTinKC]

"I'm gonna assume this originally was intended as a head swap from a 3sge and not a 3sfe or an intake manifold swap. If i'm wrong... well... I just find it hard to believe that swapping economy "FE head" parts for economy "FE head" parts is gonna make an engine more as powerful as its performance counterpart. "

Sometimes things work out this way, WAAY back when, I was modify ing a 6 cyl ford falcon, found out if you took the cylinder head from a 170 cu inch Bronco 6 and put it on your 200 cu. inch motor, you upped the compression from 8.0 to 9.1 or so due to diff combustion chamber shape and also got approx 25% better airflow, just by using a different stock part.

[west_minist]

Last but not least: Forget about the 3sfe manifold and either go seperate throttles or turbo.

I would like to see some throttle bodies into a customer cannister manifold for turbo. More gains there. Try not to waste money for few extra when more can be had using other better methods.

Good luck

[west_minist]

[jayi12-15psi]

is the IM from a jdm 3s-fe the same as the usdm or not?