Project Lex

[Halon]

I hope you're right :) I'm just basing my goals on my experience with my Talon (completely different car but about all I can personally compare to). This turbo is similar to the one I had on my Talon. Compared to the S362 I had on the Talon, this 84-75 I have for this car has an ever so slightly smaller comp wheel (appx 0.5mm smaller I believe), but a better exhaust side. And the Talon made 628 dynojet at 35psi, so that's pretty much all I'm basing my goal off. If you blow my goal away on the dyno (like you did with my Talon), well then you won't hear any complaints from me :)

Your dyno in 2wd mode reads a little closer to the dynojet numbers correct?

[A//// Guy]

You cant compare your old 4 cylinder with a 6 cylinder offering 1 more liter of displacement. :P

[Halon]

I agree, plus this setup will have higher compression (10:1 vs. 8.5:1).

But on that same note, from what I've gathered is while the 2JZ may be strong, it isn't nearly as efficient of a design as Mitsu motors. So while it does have more displacement, that doesn't directly correlate to 1L of additional power over a 4G63.

And in the end it's all I personally can compare it to as I've never been around 2JZ setups before. So what's a cracka to do... ;)

[95talonracer]

I was going to say because there are guys barely in the 40psi range with way over 1000hp on a 2jz. Go for 35psi anyways Brandon!

[Halon]

I was going to say because there are guys barely in the 40psi range with way over 1000hp on a 2jz. Go for 35psi anyways Brandon!

Maybe it's just my brain, but 40psi just sounds scary :) haha. 35 is the most I've ever ran. 40psi may come eventually, but small steps for this chicken sh!t :D

And on what turbo? That DB Evo is at 1000hp too. Is it a similar turbo? To me it just seems like a lot of Evo guys make similar power, with similar turbos, to some Supra guys. So that additional liter doesn't equal a bunch of more top end power when compared to a 4G63. A little more, maybe, but not as huge as you'd think.

And again, that's me watching youtube videos and reading on forums. I have no first hand experience, which is why I'm saying at this point the only real thing I can compare to is my Talon. Time will tell. 600hp is still so far away, so I try to not even think about it really haha.

[Shane@DBPerformance]

Yea, our dyno in 2wd mode reads close to a Dynojet. The extra liter of displacement helps a lot with power and spoolwise, but yes it isn't as efficient. They don't have very good heads or cams, and most of the normal aftermarket cams people run in them are weak compared to other cars, but they still gain decent power. The factory intake manifolds suck at making high RPM power, but most guys don't try to rev them that high anyways.

10.0:1 compression and 35psi with only E85 might not work the best. The 8.5:1 Supra motors have a harder time fighting detonation than a 8.5:1 DSM motor, which has a much harder time with knock than an Evo, STi or Honda.

[Halon]

Yeah I don't want to rev super high either. I still have to figure out what a decent RPM to rev to would be with stock valvetrain, and minnimal clutch dragging.

As for the rest of it, thanks for the input. I still plan on sticking with the 10:1 stock compression for now as that keeps the quench design exactly as was engineered from the factory. So I guess we will just see how she does. If we don't make it safely to 35psi, that's OK because with the higher comp ratio, I should be making the power a lower comp motor at 35psi would make, at a lower leve like 30 or whatever that works out to be.

And of course it's a never ending project, so depending on results, everything is subject to change someday :)

[Shane@DBPerformance]

The turbo or fuel system will probably max before 35psi anyways.

[Halon]

TB showed up in the mail today. Very clean, pretty happy with it's condition!

Also after quite a few conversations back n forth with Shane, decided I will be ordering up some injectors from them (DBPerformance) here shortly. So thanks to him for taking time to help me choose some suitable, yet affordable, injectors that should work for my goals.

What we decided on were the 900cc High Z EV14 injectors that FIC is selling. They claim that they flow the same as "other companies 1000cc" injectors. So I'm assuming they are referring to the ID1000's. We shall see. I will end up pushing these pretty far, but they should work for my setup and goal. If they start to run out of room, I can always just look into a Fuel Pump setup that allows me to run higher base fuel pressure.

Here's a link to the injectors:
http://www.fuelinjectorclinic.com/cgi-local/commerce.cgi?preadd=action&key=IS145-0900H


Also been speaking more with the Megasquirt guy. Right now I'm on the fence of possibly going with the new (still in beta) MS3 setup that is "supposed" to rival some of the higher class tuning systems such as Motec. And of course for a fraction of the cost :) We'll see what I decide on, but I will be deciding soon as I need to get that going asap.

[Goat Blower]

Just run a thicker headgasket, that should get the CR down a hair while maintaining the factory design.