Turbo wagon AE92******your thoughts and opinions here

[91_CorollaWagon]

Ok, in maybe a few months, I might be working on a project to turbo my 91 corolla wagon, and i am thinking of working on a custom kit of my own, or buying the kit that is mentioned in another thread. My engine is the 4A-FE.

So, im coming down to the aesthetics and the power. How much power can this engine withstand on stock internals. What would be a good turbo to use, and how much psi of boost is good for daily driving. And, the one part that is eating me inside, its a wagon. How would you feel if you had a wagon with a turbo. In japan, Mitsubishi markets a EVO wagon, a ralliart wagon with an EVO front, and the whole EVO drivetrain. Would the body style matter if you were to do it? I like to try different things, so im gonna play around with this one for now (I got my 68 mustang to think about too, and my schooling.) Id like to hear your feedback and your thoughts. (and if you think that because its a wagon, its gonna be fricking ugly or weird with a turbo, thats fine too). Your opinions and feedback, and suggestions on a turbo setup would be considered and appreciated. The best part? It's a stick and it only had 32,xxx miles!


John

[punter]

There are plenty of wagon turbos thats nothing new, legnum VR4, caldina GT-T, WRX wagon, libero GSR. Just to name a few.

There is heaps of info on turboing these motors, both on these boards and the net. Do some research into it.

[Flashmn]

Whats so wrong with a wagn with a turbo in it, volvos done it for ages.

[91_CorollaWagon]

Haha, yeah volvo has been doing it for awhile. I have been thinking about it, and it would be pretty fricking awesome to have a 250HP, wagon that can still get 30mpg and still haul stuff!

If there is any info on turboing these motors, could somebady steer me in the right direction of maybe a few posts?

thanks a lot for the feedback guys, really appreciate it



John

[punter]

Since your too lazy to click on the search button and type in two words.............

http://www.toyotanation.com/forum/t99248.html

http://www.toyotanation.com/forum/t102439.html

http://www.toyotanation.com/forum/t124456.html

http://www.toyotanation.com/forum/t50785.html

http://www.toyotanation.com/forum/t4044.html

There, now imagine if you actually used a search engine and looked on the rest of the internet, or is that too hard? Do you want somone to do that too?

Seriously, if you can't even do your own research how do you expect to do a turbo conversion.

[91_CorollaWagon]

Originally Posted by punter

Since your too lazy to click on the search button and type in two words.............

http://www.toyotanation.com/forum/t99248.html

http://www.toyotanation.com/forum/t102439.html

http://www.toyotanation.com/forum/t124456.html

http://www.toyotanation.com/forum/t50785.html

http://www.toyotanation.com/forum/t4044.html

There, now imagine if you actually used a search engine and looked on the rest of the internet, or is that too hard? Do you want somone to do that too?

Seriously, if you can't even do your own research how do you expect to do a turbo conversion.

Well im sorry if i upsetted you, but i was just looking for some help....And your help was very informational. I know more about these engines now.....

and for the record, which i know im gonna get these responses....I will NOT swap to a 4AGZE. I want to try something different.

but hey,thanks for your help.



John

[Flashmn]

250hp and 30mpg... uhhuh, not very realistic to expect that.
Turbo will increase consumption and mileage will go down. just fyi, so dont expect to have 30mpg and 250hp.

Heres basic parts you need for a turboinstallation:
Turbo, dooh
Wastegate
Blow off/diverter valve
Some way to increase fuel delivery on boost, either ecu, fmu, or some other method
Bigger injectors, 4A-FE injectors are shit small.
Manifold
Some way to possibly alter the timing, tho its not as important, but it would be good to have timing retard on boost

Now optional parts are:
Programmable efi
Intercooler

I might of missed something, but thats pretty much it.
Next, go buy a book Corky Bell Maximum boost and read it not one, not twice but as many times are you really know it from cover to cover. It will explain alot of stuff and it will help you to understand alot of how the whole system is put together.

[91_CorollaWagon]

Originally Posted by Flashmn

250hp and 30mpg... uhhuh, not very realistic to expect that.
Turbo will increase consumption and mileage will go down. just fyi, so dont expect to have 30mpg and 250hp.

Heres basic parts you need for a turboinstallation:
Turbo, dooh
Wastegate
Blow off/diverter valve
Some way to increase fuel delivery on boost, either ecu, fmu, or some other method
Bigger injectors, 4A-FE injectors are shit small.
Manifold
Some way to possibly alter the timing, tho its not as important, but it would be good to have timing retard on boost

Now optional parts are:
Programmable efi
Intercooler

I might of missed something, but thats pretty much it.
Next, go buy a book Corky Bell Maximum boost and read it not one, not twice but as many times are you really know it from cover to cover. It will explain alot of stuff and it will help you to understand alot of how the whole system is put together.

as for the fuel delivery on boost, would be good to use the APEXi' SAF-C or the Greddy E-Manage for fuel and boost management? would those two be good to use for fuel management...I know that cars that dont have boost provisions in the ECU need like a piggyback or some external control to control fuel, timing, and spark delivery. What would you suggest for those parameters?



John

[Flashmn]

d) none of the above.

What those do is alter a signal from a particular sensor to make the stock ecu think that you need a richer mixture, wether it is the O2 signal, the coolant temp signal. Whatever, the problem is each of these systems will only increase the fuel delivery by maybe 3-5%, that not enough for anything more than "slight"boost.

Another alternative is to increase fuel pressure, so the time the injector is open you spray more juice, thus increasing fuel delivery. However that is limiting too, like I said the stock injectors are frigging small, I think they were around 180cc/min.

250hp from a 4A-FE engine isnt that hard to do, but if you dont do it properly, you're bound to kill your engine. What I suggest would run a programmable EFI system, wether its Megasquirt, KMS, Autronic, Haltech, Motec. I'd say see your budget and then think about the system. Dont start the designing with the turbo size, but rather fuel delivery aspect. So lets say you have fuel delivery up to 300hp, then you can start to see a turbo which you can use and what provides you with suitable characteristics.

[91_CorollaWagon]

Originally Posted by Flashmn

d) none of the above.

What those do is alter a signal from a particular sensor to make the stock ecu think that you need a richer mixture, wether it is the O2 signal, the coolant temp signal. Whatever, the problem is each of these systems will only increase the fuel delivery by maybe 3-5%, that not enough for anything more than "slight"boost.

Another alternative is to increase fuel pressure, so the time the injector is open you spray more juice, thus increasing fuel delivery. However that is limiting too, like I said the stock injectors are frigging small, I think they were around 180cc/min.

250hp from a 4A-FE engine isnt that hard to do, but if you dont do it properly, you're bound to kill your engine. What I suggest would run a programmable EFI system, wether its Megasquirt, KMS, Autronic, Haltech, Motec. I'd say see your budget and then think about the system. Dont start the designing with the turbo size, but rather fuel delivery aspect. So lets say you have fuel delivery up to 300hp, then you can start to see a turbo which you can use and what provides you with suitable characteristics.

Maybe 250 is a little out there, maybe ill shoot for 200. What would you suggest in terms of fuel delivery, besides that programmable fuel delivery thing you mentioned? what would you suggest for fuel injectors? maybe a supra fuel pump would help?


John

[Flashmn]

even with 200, its already shaky. A supra pump in itself wont do much, if anything at all. One reason is the injectors are so frigging small they cant flow much.
Well if I wasnt gonna go programmable, and I had efi, I'd research on a FMU, so that it would increase fuel pressure in a rising rate compared to boost. Then I'd get something like 400CC+ injectors to go with that, but that will cause your non-boost low RPM mixtures to go to shit, because the stock computer doesnt know theres bigger injectors it wasnt designed for, thus you'd get alot more fuel flow on idle vs stock.
One thing you can forget at this point is fuel economy if you go turbocharged route.

[91_CorollaWagon]

Sorry for all the questions, im a little new to the import thing, and I dont know that much on turbos ( I know how they work and what boost is) so im still learning wherever i can.



John

[SR5_4WD]

let me know how it works, maybe there can be a few Toyota turbo wagons cruising around

[TTercel]

Why don't you just get a 4AGE. Do some N/A work and presto you got yourself 200hp.

[AVANT]

Keeping 30mpg isn't impossible imo. It's all about the tuning.

My GTI has 210whp on pump gas and I get 30mpg with it... This is a 1.8L engine weighing in at 2900lbs with 310cc injectors.

Granted it's newer technology, but having a turbo doesn't really make gas milage go down. Driving it around and actually boosting the engine does. When you're crusing on the highway for example, you will almost never use the turbo.