Unsure about a few KA-T things...

[Neejay]

I'm still unsure about a few things with my KA-T setup Im planning.

1.) Im planning on running a T28. It's internally wastegated, but all the manifolds I see for the SOHC come with a hole for a wastegate. The ones few of the ones I've found are for T4, T3/T4, etc. (using ka-t.org and the ka24e-t FAQ here) Does anyone know of a SOHC manifold that's for a T28, without being ass-expensive?

2.) Even if I get a manifold for a the T28 + sr20 o2 elbow + sr20 downpipe, is this guaranteed to mate up to stock placement for exhaust? Or would this all depend on the manifold?

3.) Would the oem sr20 smic piping go around the charcoal canister? I was going to go with a stock smic for now, but looking at CA/SR sidemount piping, they dont look like they'd fit around the canister.

4.) sr20 370cc injectors + SAFC + retarding timing = ok for stock psi?

I'm not looking to make monster, only about 220-250hp (eventually at least). Thanks.

[gubermyster]

i would talk to the folks at ka-t.org

probably much more helpful

[NinjaGaiden]

1) just plug the wastegate hole on the manifold (get a plate)
2) you can have a shop custom weld you a downpipe. got mine for $150 and has a wideband O2 bung welded on as well for tuning
3) maybe relocate teh canister?
4) stock PSI meaning 7PSI? make sure it is tuned. find a shop wiht a wideband who can give you a reliable tune. It is worth not blowing up a motor. ka-t.org talked about setting your timing.

[Team Rootbeer]

you COULD get the t4 mani, and buy a t28 flange and have a shop cut and weld it for you.......wouldnt be much at all i would imagine.

[S14DB]

1.) Im planning on running a T28. It's internally wastegated, but all the manifolds I see for the SOHC come with a hole for a wastegate. The ones few of the ones I've found are for T4, T3/T4, etc. (using ka-t.org and the ka24e-t FAQ here) Does anyone know of a SOHC manifold that's for a T28, without being ass-expensive?

2.) Even if I get a manifold for a the T28 + sr20 o2 elbow + sr20 downpipe, is this guaranteed to mate up to stock placement for exhaust? Or would this all depend on the manifold?
Depends on the manifold. Everything Depends on the manifold
3.) Would the oem sr20 smic piping go around the charcoal canister? I was going to go with a stock smic for now, but looking at CA/SR sidemount piping, they dont look like they'd fit around the canister.
Why do you have all that emissions crap?
4.) sr20 370cc injectors + SAFC + retarding timing = ok for stock psi?
Stock PSI on a KA? SR injectors won't fit on a SOHC

I would get a T3 mani, GT32, Tial WG, injectors. Burn an eprom. Have a DP made locally. Time to do some more research.

[Neejay]

Originally Posted by S14DB

1.) Im planning on running a T28. It's internally wastegated, but all the manifolds I see for the SOHC come with a hole for a wastegate. The ones few of the ones I've found are for T4, T3/T4, etc. (using ka-t.org and the ka24e-t FAQ here) Does anyone know of a SOHC manifold that's for a T28, without being ass-expensive?

2.) Even if I get a manifold for a the T28 + sr20 o2 elbow + sr20 downpipe, is this guaranteed to mate up to stock placement for exhaust? Or would this all depend on the manifold?
Depends on the manifold. Everything Depends on the manifold
3.) Would the oem sr20 smic piping go around the charcoal canister? I was going to go with a stock smic for now, but looking at CA/SR sidemount piping, they dont look like they'd fit around the canister.
Why do you have all that emissions crap?
4.) sr20 370cc injectors + SAFC + retarding timing = ok for stock psi?
Stock PSI on a KA? SR injectors won't fit on a SOHC

I would get a T3 mani, GT32, Tial WG, injectors. Burn an eprom. Have a DP made locally. Time to do some more research.

Sorry for the terminology. Obviously I didn't mean "KA Stock PSI". I meant like 7-8 PSI on the T28. Will the SR injectors fit on a DOHC? I've read from ka-t.org that there are some people running the sr injectors with just little modification to the injector (filing down a tab or lump or something).

I have the emission's crap...for emissions? When I researched the charcoal canister, I was under the impression that I needed it.

And yeah, that's why I was asking first because it is way more involved than I thought

[JDMark]

yea SR20 wont fit, youll want CA18DET injectors, 370cc and they drop right in. That what i ran on my sohc turbo. You will need resistors spliced in the injector power wires though.
If you get a T3 you'll be much happier in the long run btw.

[Infamax]

Originally Posted by Neejay

I'm still unsure about a few things with my KA-T setup Im planning.

1.) Im planning on running a T28. It's internally wastegated, but all the manifolds I see for the SOHC come with a hole for a wastegate. The ones few of the ones I've found are for T4, T3/T4, etc. (using ka-t.org and the ka24e-t FAQ here) Does anyone know of a SOHC manifold that's for a T28, without being ass-expensive?

You could just get a plate to block it off. If you ever plan to upgrade your set up you'd be able to keep your manifold without having to buy a new one with a Wastegate flange.

2.) Even if I get a manifold for a the T28 + sr20 o2 elbow + sr20 downpipe, is this guaranteed to mate up to stock placement for exhaust? Or would this all depend on the manifold?

I'd just go to some muffler shop and have them build a custome down pipe.

3.) Would the oem sr20 smic piping go around the charcoal canister? I was going to go with a stock smic for now, but looking at CA/SR sidemount piping, they dont look like they'd fit around the canister.

4.) sr20 370cc injectors + SAFC + retarding timing = ok for stock psi?

A lot of KA-t people use that same setup for fuel manegment, it's pretty common. As long as you properly tune your car, you shouldnt have problems. SR injectors are not a drop-in into KA24Es. You should put in 88-91 NA rx7 460cc injectors or 88-91 Turbo RX7 550cc injectors.
I'm not looking to make monster, only about 220-250hp (eventually at least). Thanks.

I would recommend using a t3 z31 turbo for your set up if you're set on having 200-250 rwhp. You'd be able to use a t3 manifold without a wastegate flange. You should be able to make 230~ rwhp with: z31 t3, 460cc rx7 injectors, safc, sr sidemount and retarded timing.

[Neejay]

Originally Posted by Infamax

I would recommend using a t3 z31 turbo for your set up if you're set on having 200-250 rwhp. You'd be able to use a t3 manifold without a wastegate flange. You should be able to make 230~ rwhp with: z31 t3, 460cc rx7 injectors, safc, sr sidemount and retarded timing.

The 460's aren't an overkill?

[Neejay]

And also, how do I get the custom downpipe if I cant drive my car there to the muffler shop to test fit?

[AceInHole]

Does anyone know the dimensions of the SOHC head (relative to engine centerline would be nice)? I know the port spacing on the exhaust is an awkward 2 + 2'ish setup, not sure if it's narrower though, and actually doubt that you'd be able to make an effective spacer/ adapter to the SR manifold.

Easiest way to do a custom bottom mount setup for SR compatibility would be to just make a log manifold out of weld-els. At that point, though, you might as well just custom make everything.

[NinjaGaiden]

I towed mine to the shop. They did the custom charge pipes, down pipes, and tuning for me.