Toymods Car Club Inc: Tech & Conversions => 1997 Toyota Corolla Seca Conquest (AE102R) Power upgrade

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birdie
Regular

Location:
Coalstoun Lakes
Registered:
November 2004

Re: 1997 Toyota Corolla Seca Conquest (AE102R) Power upgrade

Mon, 11 April 2005 05:56

Mr*Beach wrote on Mon, 11 April 2005 14:05

I'd say you're better off having one custom made. Pre-made ones arent usually much cheaper.
Just make sure you know what you're getting into. Its not as easy as slapping on a turbo and going for it. First you gotta work out if the turbo you're getting is internal or external wastegate. External is gonna cost you more so look for a stock nissan turbo like a T25 (my 4a-gze has highflowed t3) or similar. Then you also have to think of dump and exhaust pipes, intake pipes, intercooler. After that you still need an oil feed and drain for the turbo plus coolant lines (not essential but recommended).A boost controller plus you'd proably want a guage and also some sort of management. I'd recommend just a fuel computer like an apexi safc or you could run too lean and start melting pistons. And even after all that, you can still only run low boost cause of weak internals. If you're gonna do it you should do it right.

I think you should do what i'm doing at the moment. I've sourced a 7a-fe (you already have it so that saves you some cash). I'm having the rods and crank strengthened(shot peening/ nitrading) using stock gze pistons which are surprisingly cheap for forged and ceramic coated (only difference between the 7a and 4a is the stroke so 4a pistons will fit the bore). Using the head and manifolds off my gze and putting it all together. Then all I gotta do is run the oil feed and drain, find out which timing belt fits and there you have it. A reliable and strong 7a-gte. It obviously won't rev as good as the 4a but i'm expecting the torque will be phenominal.

Has anybody done this combination before? I've read a lot about it but never actually spoken to someone who has done it.

Hope that all helps with your decision.

~Josh

What you are doing sounds very intersting.

How much does shot peening/ nitrading the crank and pistons cost? And will they be a fair bit stronger?

How much are the 4AGZE Pistons worth?

How much for the head and mainfold off a 4AGZE? Which manifolds are you talking about btw? As you would need a custom turbo manifold.

Running an oil feed and drain should be too hard/expensive should it?

Timming belts shouldn't be too hard or expensive to get either?

Yes, the toruge should be good, even the stock 7AFE is quite reasonable IMO.

If I can get some costs off you, it will help alot.

The other option I was thinking of the other day was instead of turboing it, was to supercharge it (possibly with the 4A-GZE S/C). Of course I would still need to strengthen the Rods, crank, and pistons, but I wouldn't need the turbo manifold. But I'm not overly familiar with S/C so there would probably be some other cost that would make up for the money saved on the turbo manifold?

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