Boosting my 2zz XRS, custom and cheap... Need help.

[robertsmb]

Need some advice from you boosting gods....

Assuming I wanted to Peice together my own turbo setup for the 05 xrs, what is a list of things I would need?

Turbo - Since Im only gonna run 6-8psi i need a small turbo that spools stupid quick... right?

Intercooler - again, since its only 6-8psi, I need a small intercooler.. something like what is on the mazdaspeed miata... right?

Piping - I can get the custom pipe work done here in town.

Manifold - I have no clue about this one... need help.

Fuel - 1.) Should I get bigger injectors? If so, which ones are compatable with the 2zz. If not Bigger, SHould I get an extra injector? If so, how does that work and what would be the best way.... is there room on the fuel rail for another?? And im guessing a 255lph fuel pump would be nice too huh??

After the hardware is there, what do I do about fuel maps or AFR managment? Greddy E-Manage? Apex-I AFC?

Anything else Im missing??


Any help or information woudl be nice. Im looking to start/complete this project before christmas...
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[epsylum]

Why not buy the Blitz kit for it?

http://www.blitz-performance.com/Blitz_Comp_Celica.htm

Granted it's meant for a Celica GTS, but I am surwe it would be easier to make it work than doing a DIY job.

[robertsmb]

Yeah I did a lot of research yesterday, an because our compression is so damn high, every time someone has tried to boost a 2zz they end up with problems.... not necesarily immediatly but definatly have problems. I imagine that lotus will blow up soon, and several matrix's have been toasted.

I think Im just gonna stick with spray. Its the only way to get sick HP outta this car without changing too mcuh.

[Flashmn]

You wont be able to get high hp with spray with the stock pistons, you're gonna run into the same problem than with a turbokit.

[robertsmb]

Yeah Im not looking for High Hp.. I dont plan on running over a 75 shot, and its not gonna be sprayed every day.. Mostly saturday night at the track.

[Flashmn]

I'd forget about the whole N2O thing. Its not cost effective and its a nice way to mess up your engine.

[epsylum]

Originally Posted by Flashmn

I'd forget about the whole N2O thing. Its not cost effective and its a nice way to mess up your engine.

+1

Nitrous is hard on engines. Even just a 75 shot and every now and then, you are taking a chance. I have seen holes in pistons pn streetbikes becasue someone wanted just a dew more HP and slapped N20 on it.

After readin my manual for the XRS, yeah it says the compression is 11:1. That's pretty damn high for a car, espescially a sub 20k daily driver like the Rolla. Before you play with power adders, you will need at least some good pistons (ones in a lower compression ratio for boost) and probably some better cylinder studs and bolts.

The 2ZZGE was obviously designed to be NA. If you want a cheap car that you can play with boost on, check out VW GTIs with the 1.8T (what I was all set to get, until I found stumbled accross the Rolla). They were made for boost, literally.

[Flashmn]

if I was to boost a 2ZZ-GE, I'd just get new pistons and a turbocharger running 1bar boost. The amount those turbokits give you is shit, who the hell wants to drive around with 5psi anyways.
I'm planning to start up with 8psi on my 4A-F and see from there. I already have plans to decompress the head.

[357wheelgunner]

A guy over at www.*************.com has done it, the turbo is up and running at 5 psi. Go there and check out hte forced induction section, he has details and videos. Everything was custom, and expensive.

The 2ZZ was made for NA purposes, personally I'd build it with a stroker kit and a bunch of bolt ons, you'd have one mean 4 banger on your hands. There is a stroker kit to build the 1.8L VVTL-i to 2.0L.....there is also a supercharged version of the 2ZZ in Europe, they made 250 of them. We won't see the blower here though due to our emissions control.

[357wheelgunner]

[quote=Flashmn]The amount those turbokits give you is shit, who the hell wants to drive around with 5psi anyways. quote]

5 psi is pretty good through an already powerful motor, Diskace is predicting 250 or so HP at the wheels, which is awesome in a 2400 lb car.

But $6000 and a few weeks worth is a bit much for 80 or so HP bonus. I do think it is friggin awesome that he has a totally unique car.

[Flashmn]

How long do you plan to boost the 5 psi, when the first higher powered car overtakes you and beats you racing, you're 100% sure gonna go and adjust the wastegate to get more boost.

[drift_ae86_91]

well sport compact car did a turbo matrix xrs a while back, like 2 years ago, check their site.

[357wheelgunner]

Originally Posted by Flashmn

How long do you plan to boost the 5 psi, when the first higher powered car overtakes you and beats you racing, you're 100% sure gonna go and adjust the wastegate to get more boost.

I would not boost an XRS because it would be the fastest monster turbo car out there, I'd do it just to have a boosted XRS. Any moron can buy a bolton turbo kit and in one weekend have a boosted car, but it takes skill to fabricate parts for an XRS and get it to run with high compression. I think It would be cool to have something no one else has...

[RA24_4_Me]

I dont know what you guys are talking about in reference to the 2zz and nitrous. A guy local to me had a 2zz 7th gen celica, and with a wet 50 shot dynoed at 221 whp 200 lb/ft, and ran a 13.12 @ 106. That was with the nitrous, an RMM intake, and an axle back exhaust.

Nitrous wakes the 2zz up, plain and simple. Just dont run over a 60 shot, or it will start to puddle.