Stock 4AGE Turbo?

[Zips4]

Dose any one out there Know if you can put a Low Psi Turbo on a stock 4age? Or would i have to swap over to a 4AGZE and swap supercharger for a turbo?
Also do they make a Hearder for the 4Age all i can find is one for the coralla but dont want to cut it up and have welded.

[LokiRx7]

If you need to ask, you arent ready yet. Search around and you will find everything you need.

[DarylP]

Are you talking just a header? Or a turbo manifold?

[F0Bman]

Consider using a T25 or the CT20 from the 4AFTE

[LokiRx7]

Originally Posted by F0Bman

Consider using a T25 or the CT20 from the 4AFTE

There is no 4AFTE I think you are referring to the 4TGTE. The 3TGTE and 22RTE also used the CT20

[88mr2sc_1]

Originally Posted by Zips4

Dose any one out there Know if you can put a Low Psi Turbo on a stock 4age? Or would i have to swap over to a 4AGZE and swap supercharger for a turbo?
Also do they make a Hearder for the 4Age all i can find is one for the coralla but dont want to cut it up and have welded.

there are quite a few ppl out there running a "stock" turbo 4age. basically get another stock exhaust header, cut and weld on a turbo flange, mount turbo, make down pipe, run oil & coolant lines to turbo, tap oil pan for drainage line from turbo, run pipe from air meter to turbo inlet, pipe from turbo outlet to intercooler, pipe w/bov from intercooler to tb, various vac lines and there you go. with a t25 you should be able to run 6-8psi pretty safely usnig all the 4age stock electronics anf fuel components.

[LokiRx7]

Originally Posted by 88mr2sc_1

there are quite a few ppl out there running a "stock" turbo 4age. basically get another stock exhaust header, cut and weld on a turbo flange, mount turbo, make down pipe, run oil & coolant lines to turbo, tap oil pan for drainage line from turbo, run pipe from air meter to turbo inlet, pipe from turbo outlet to intercooler, pipe w/bov from intercooler to tb, various vac lines and there you go. with a t25 you should be able to run 6-8psi pretty safely usnig all the 4age stock electronics anf fuel components.

I thought at the very least for an N/A you needed larger injectors and a rising rate FPR. Maybe I am wrong but thats what I have gathered from some of the threads I have looked through.

[88mr2sc_1]

nope not really, papoj ran that exact set up for quit a while with out a hitch. heck, when he gave me a ride in it he even had eleminated the ic (can't remember why at the moment) and it still ran like a bat out of h*ll. it did boost spike on him though, to like 10-12psi but he would let out when that would happen, especially with no ic.

he ran stock fuel and electronics from the 4age, like i said 6-8psi you will be safe. but like with any modified/unmodified car if you drive it hard all the time expect something to break or wear out now and again.

i'm in the process of doing my 4agze to te swap. i plan on running a mitsubishi 14b turbo at around 14-16psi using all stock gze fuel and electronics. i'm still waiting on a certain component to be completed from toyotatechgeek (ttg) on here, he's redoing a gze head for me with 85-86 ge cams.

[LokiRx7]

Interesting, Ill look into that a little more. Because I am not planning on running more than 5-6 p.s.i. Im not the kind of person that says,

"Hey lets turn the boost up juuust a little, it couldnt hurt!"

I think I would be satisfied with 6 lbs. to be honest.

[SilverFire]

Originally Posted by LokiRx7

Im not the kind of person that says,

"Hey lets turn the boost up juuust a little, it couldnt hurt!"

I think I would be satisfied with 6 lbs. to be honest.

You thinks so, do you? I'll believe that when I see it. Power is addictive. I worked with a guy that had an '72 challenger. He thought he'd be happy with a slightly overbored stock V8. He was. For a year or so... Then he decided stroking wouldn't be that much of a jump, if did that then he'd be happy and he was, for a while. After about 10 years, a whole mess of modsand even more money, he wound up with a supercharged 518 sticking out of the hood running "more power than anyone should ever have in a street car" (<--his words, not mine, if I remember right he was running around 20-25psi of boost...). Seriously, it would spin out on gravel roads at idle. I'm not talking just spinning the wheels, but sliding the rear end around to the left or right. he actually took out the stick for an auto tranny 'cause it tamed the car better.

I had that problem too. I got my ST MR2 and thought, combined with the lower weight, I'd be happy with the 15-20 HP over my FC. Now I'm building an FI engine to roughly double it. At least this time I'm doing it right and building it to as close to the limit as I can justify in one shot, but I"m not making any promises that I'll never up the boost or wind up building it up tougher yet.

[LokiRx7]

Originally Posted by SilverFire

You thinks so, do you? I'll believe that when I see it. Power is addictive. I worked with a guy that had an '72 challenger. He thought he'd be happy with a slightly overbored stock V8. He was. For a year or so... Then he decided stroking wouldn't be that much of a jump, if did that then he'd be happy and he was, for a while. After about 10 years, a whole mess of modsand even more money, he wound up with a supercharged 518 sticking out of the hood running "more power than anyone should ever have in a street car" (<--his words, not mine, if I remember right he was running around 20-25psi of boost...). Seriously, it would spin out on gravel roads at idle. I'm not talking just spinning the wheels, but sliding the rear end around to the left or right. he actually took out the stick for an auto tranny 'cause it tamed the car better.

I had that problem too. I got my ST MR2 and thought, combined with the lower weight, I'd be happy with the 15-20 HP over my FC. Now I'm building an FI engine to roughly double it. At least this time I'm doing it right and building it to as close to the limit as I can justify in one shot, but I"m not making any promises that I'll never up the boost or wind up building it up tougher yet.

I have an Rx-7 with a stock port 12a, with a Mikuni sidedraft, matched intake, and a header + full exhaust. I havent touched the engine since I built it. I couldnt tell you how long its been this way, at least 8 years. On a DynoJet it laid down 120 wheel horsepower, pretty impressive for a stockport 12a. Its about a 14 second car, and I love it, just enough to power out of the corners.

I overbuild everything and make sure its reliable. I dont care about gobs of power, I really dont. If it brings a smile to my face, thats good enough. I dont want to, and cant afford to rebuild an engine and decide one day to crank the boost up, if it explodes, it will be undriveable until I can save enough dough to fix it. I dont know about you, but I enjoy driving my car.

Oh 2 or 3 more pounds wont hurt, bam broken ring lands (insert various other problem here). To be honest, ideally I want to build a 10:1 4A-GE with some 256's in it. Maybe a header and exhaust, a little more fuel. That would be worlds more reliable than a turbo. 120-130 to the wheels in an MR2 would be fine with me, and and more that I can get without sacrificing any form of reliability is gravy.

[87jdmmr2]

here's a quick question getting back to the original question...does the ecu from a 4age handle the boost of a turbo? or do you need to swap for the 4agze?

[LokiRx7]

Originally Posted by 87jdmmr2

here's a quick question getting back to the original question...does the ecu from a 4age handle the boost of a turbo? or do you need to swap for the 4agze?

I beleive as long as you dont have a MAP sensor the stock ECU is fine, basically if you have an AFM you dont have a map sensor. And of course vice versa.

[2restomod]

Originally Posted by 88mr2sc_1

............ i'm still waiting on a certain component to be completed from toyotatechgeek (ttg) on here, he's redoing a gze head for me with 85-86 ge cams.

The heads on the gze and ge are identical. Why not just use the head from an 85/86 since you're just looking for the cams?

[88mr2sc_1]

Originally Posted by 2restomod

The heads on the gze and ge are identical. Why not just use the head from an 85/86 since you're just looking for the cams?

because the one he has of mine, he's porting as well.

i have another gze head in my shed if i just wanted to slap one together, but i'm not doing it twice.

[2restomod]

Originally Posted by 88mr2sc_1

because the one he has of mine, he's porting as well.

i have another gze head in my shed if i just wanted to slap one together, but i'm not doing it twice.

Any chance of getting a "before and after" on the port job performance?
and maybe some pics?