ITB's + GT32 = Fun!

[RBS14]

So some of you already know, but I've been building a turbo setup for the past few months.

Started it up for the first time last night, did a bit of idle smoothing today until my turbo started blowing oil into the exhaust. I'll pick up a pressure reducer tomorrow for my turbo feed line. Turbo is an AMS GT32 and i'm controlling it all with a Haltech E8 (which most of you already know).

Enough talking, more pics:

turbonetics mani and wastegate:


ITB's used to be attached to the intake mani like so:


They're now attached like so. Close up of new plenum too:


Inside of the plenum looks like this:


AMS GT32:


Downpipe:




wastegate dump tube: (I've since gotten much better at welding)


Downpipe and wastegate dump from below:


lots of BMC clearance:


Gauges:


Rest of the cockpit:


Intercooler setup:




The whole shindig:






I'm dyno tuning it this week to get ready for an event next weekend. So I'll post up a dyno chart or two once I get that done. Even untuned it's still really responsive, like when it was n/a, but now it'll actually make some power. I'm not sure how much boost I'm gonna run yet, but the initial tune will prolly be for about 8psi. Then after the event next week I'll probably go back in and we can tune it up to maybe 1 bar or so. We'll see.

cheers

[Team Rootbeer]

NICE! man, that is sick.......i wanna see the charts! hurry up!

iirc, your using gsx-r throttle bodies right? anywho awsome job on the fab, and the setup

[kouki_s14]

thats sick, nice work. anything done to the internals?

[TheTimanator]

nice work. Can't wait to see the dyno. Any reason for the really small intercooler?

[m0rex]

Thats f'ing sick. Mad props.

[luckyrb13]

That looks beautiful. Id love t osee that set up in person.Iam also in the bay Area. Are you going to go to the altamont event?

[SpeedMonkeyInc]

Rock. Settled on a target boost level yet?

[Nachtmensch]

thats fucking nuts!!!! i want!

dyno?

[alexchanman]

crazy setup man but that welding is suspect.

[that180guy]

looks lik you got real nice clearance with the bmc. is it because of the way u welded the dp? turbo or the manifold?

[TurDz]

Did you get your rear solid endlinks installed?

[RBS14]

Yeah, I'm using gsxr throttle bodies.

Stock internals still save for JWT cams.

Small intercooler because it will still cool efficently up to about 400hp. Any bigger just increases lag.

I'll be at the June 15th altamont event.

I think 8psi to start with then after the event this weekend I'll tune it up to about 1 bar and see how it is. I probably won't run it at that yet, just tune it to that so I can up it whenever I want.

All the TIG welding (aluminum) is beautiful, but the MIG stuff I did is not so great. But I made and tacked together the dp, and a friend welded it up so it's all good and nice. Only ugly stuff is the wastegate dump.

The BMC clearance is because of the mani primarily and the way I made the DP.

haha No I haven't done the rear endlinks yet. I've been spending too much time on the turbo shit. I'll do it soon. Back to suspension setup now.

Cheers

[Pank]

whatever happened to "NA Monsters Only"??

[Dousan_PG]

nice welds jackass haha
then again icant do any better.shutup
looks good

and john says your a biter.
queer!
come drive come visit. im lonely scooter.

[250sxdet]

damn that looks sick. nice job dude.

[RBS14]

hahahaha

Tell john I'll bite him.
Are you going to the Industry day? Not to drive obviously but maybe hang out? You should. I'll be there. And Baby and Linda too right? I'll make you feel all warm and fuzzy, I promise.

[L1ama]

You're insane

[chibo]

This might sound stupid, but how do ITBs help if they share a common plenum?

[RBS14]

well the plenum is before the TB's so there is no lag between when the TB opens and when the air hits the engine. And the plenum I made flows about 10983572394578 times better than stock. The TB's also equalize pressure so you don't get any cylinders going lean like on stock plenum stuff.

"n/a monsters only". I don't have the $$ to get enough power N/A. And I'm a poser.

[NemeGuero]

They can suck in larger volumes of air. Like they do on bikes and other ITB applications..

They'll most always have an "air box" that supplies air from elsewhere to the ITBs.


I saw this on Ka-T a few days ago.. man I wanna feel what it pulls like..
looks really good man.

[chibo]

Originally Posted by RBS14

well the plenum is before the TB's so there is no lag between when the TB opens and when the air hits the engine. And the plenum I made flows about 10983572394578 times better than stock. The TB's also equalize pressure so you don't get any cylinders going lean like on stock plenum stuff.

"n/a monsters only". I don't have the $$ to get enough power N/A. And I'm a poser.

Interesting, I don't want to waste your time asking dumb questions so do you know of a good place to read up on ITB turbo applications?
The equalizing pressure makes sense to me but I can't visualize how it accomplishes it for the life of me

vvv good idea, corky bell... I've been meaning to get his book.

[wootwoot]

Corky Bell?
Google?

[Pank]

Originally Posted by chibo

This might sound stupid, but how do ITBs help if they share a common plenum?

the stock rb26dett uses a set of ITB's in a plenum.

[chibo]

Originally Posted by Pank

the stock rb26dett uses a set of ITB's in a plenum.

I wasn't trying to bash the setup, I was just interested. I know it's been done, the E46 M3 also shares a common plenum with ITBs, as does the E60 M5. I'll also attest to the fact that they sound orgasmic.

[Dousan_PG]

if your going scooter, illl FOR SURE GO!

[CaoBoY]

nissan R34 Z-tune special edition. ITB's and a monster motor. BAM. nuff said.
OP-good shit. ITB's are awesome, and so is turbo...best of both worlds. now it should be called "panda-na+turbo=sexygirls and lots of money "

[Ricks15]

Good shit

[EchoOfSilence]

You bastard. It looks beautiful... But i still don't understand why the velocity stacks go sa far into the plenum. Are you still in Santa Cruz? I'd love to see these in person


PS: bilingual oil filters make me nervous

[S14DB]

Nice setup.

Grinder and Wire Wheel makes crappy welds look nice. But, it looks like you ceramic coated already.

[mrmephistopheles]

scooterpants - looks like there's some badassery afoot! Can't wait to see what fun this setup is capable of.