5s intake manifold swaps Options

[eboz74]

are there any that can be used to gain hp?

[Smaay]

no

[stephen_lee]

^^this^^

unless you have a crazy good build, there is no way the 5s will benefit from a diff intake manifold (over enough rpm range to make it worth it)

[presure2]

there are no bolt on options for a 5sfe intake manifold.
however, in a FI application, i think a properly designed intake manifold would be a huge improvment over the stock manifold.

[mrmatt]

Can i ask why the 5s would not benefit from any new intake manifolds? And would it see any decent power gains from polishing the inside of the stock manifold?

[Smaay]

yeah you could port and polish the stock intake. Toyota engineers do make good nonrestrictive manifolds. the throttle body could be a little bigger, but again in the N/A application its really at its best.

[eboz74]

i really would like to build my 5s. are then any internals i could swap out for more hp gain?

[WarTowels]

Internals don't make power?

[eboz74]

I mean like pistons cams...etc i know that you can use 3s rods to change the compression but i want to build the motor before adding a turbo

[mrmatt]

Iv read a little about Colt cams and Webcams, they seem worthwhile. try searching for those

[eboz74]

Greatly appreciate the help would anyone happen to have the site ?

[mrmatt]

alamomotorsports.com has the webcams, 660$ for all the grinds

[eboz74]

does anyone have or knows anyone with a 5s all motor build?

[darthripley]

read up over on mr2oc.com & celicatech has a decent sticky regarding 5sfe n/a builds.

take a look at the dyno sheets on the highest hp 5sfe's on record then figure out if you want to attempt to go that route.

[Smaay]

you want the cheapest power? add a nitrous system. thats really it.

[eboz74]

now to wait for my accounts to be activated lol but thanks everyone for the info

@smaay- do you sell a nitrous kit lol

[eboz74]

can a 3s cam gear fit on 5s cam?

This post has been edited by eboz74: Oct 12, 2011 - 6:03 PM

[presure2]

No

[Smaay]

i dont sell them but i can install them. any kit will do, NX, NOS, etc. i recommend wet kits

[Malhar95]

Doesn't nos damage the engine? How often can u use it?

[stephen_lee]

Doesn't nos damage the engine? How often can u use it?

Not if its set up properly. & As much often/fast as you fill the bottles I assume

[Ted95]

http://www.mr2.com/forums/check/Toyota-MR2...ome-advice.html

are you sure you want a N/A 5sfe build?

[Smaay]

it does if its not respected, if you use something mild like a 50 shot you will be just fine. you can use it as long as you have juice in the bottle. with a wet kit you mix gas with nitrous, its much safer, the engine will run richer and not detonate. if you run a larger jet the mixture might still be safe, but its the cylinder pressures that kills the engine. these engine have a lower compression than the 2ZZ in the 7th gen celicas and we run 50-75 shots all day long racing. so you will be just fine