Engine 7age

7age

the 7age hybrid... how much of a reality is it really? is it something a weekend mechanic could pull off? how much is actually required from the 4age to get it working?

thanks a ton man, great info.
but... would the 7afe ecu work fine or would i lose all benefits? (i have an automatic and i dont want the thing revving out of its mind and overstressing the engine)

possibly would making a 7afte be a better way to go? all im looking for is a little extra kick in the pants, i too seriously considered a 4agze conversion but the amount of cash and time i would need was a tad too far out of my range. (im not all about rewiring the damn car, nor cutting a hole in my hood or replumbing an intercooler to the front of the car)

I was actually planning to do this myself. You have to use the 16V head, there are reasons for not using the 20V i found out. Use the small port head (redtop). With hi-comp pistons you can pull approx 140hp and 150tq, something along those figures. Maybe better even. Redline of 7500. You would need the weekend if you had the engine out of the car, you could do it on a weekend if you had all the parts. Now putting it in is the problem, you need to rewire your cars harness with the 4AGE ecu, cause rev limiter on the 7AFE will kill you. And 4AGE ecu has better performance pieces to it i think.

If you had all parts, knew what you were doing, you could maybe do it in 1-2 weeks. You need pistons of 4AGE, rods of 7AFE, do not rev higher than 7500, and dont boost. Unless you plan to get forged rods and a forged crankshaft made. the crankshaft is a weak point in the engine.

Im choosing 4AGZE swap im pretty sure in the end. Its quickest way to get the GE block, and its already s/c.

Here are some 7AGE links to help you make your choice....
http://www.club4ag.com/faq%20and%20...%20and%207A.htm
http://forums.club4ag.com/topic.asp?TOPIC_ID=72759

7AGTE is same thing man, just turbed. Crankshaft is what kills you. If you did 20V head swap, you need 4AGE-20 ecu, cause of the VVTI part. The 16V you would still want to use 4AGE ecu, or modify your 7AFE, cause reving you want to at least 7000, but more like 7500 for it to shift. I found that for your money worth, 4AGZE is best option. If you had 6k-7k do a 3SGTE swap. Thats serious power there. Engine can handle up to 500-600hp if done right. Stock is 225 approx.

btw, quick heads up

i know on the 4afe --> 4age swap, u need a timing belt from the Porsche 944, u might need that for the 7a swap too

what are you on.... lol..... just use a 4age lower crank pulley, then use the 4age head..... (that is, if you put a 4age head on a 4afe block... which would probably cost more than buying a low mileage 16V as it is) and then use a 4age timing belt

LoL, you need the timing belt if you do a 7AGE there.

im not saying a 7agte, im saying a 7afte... keeping the f head while just turbocharging the bastard lightly... hopefully not enough to require an intercooler or any ecu modification/piggyback setup.

Oh yeah, you can turbo with 5psi to get some get and go when flooring it. Youd gain approx 35-45hp. depending on your setup. I would personally get an intercooler though. But to do that, your looking at approx 3000+ WITH installation if you have company install it.

i found a turbo kit good for like 6-9psi for only 1800 or so... then i figure the only thing id really have trouble doing is drilling & tapping the lines for oil & coolant.

I have no clue how installation is. What is included in this kit for 1800, that seems kinda cheap, expecially for 6-9psi.

the only reason ones for corolla's are expensive are for a few reasons..... the piping is custom.... very few are out there so there's no mass produced piping..... secondly, the same goes for the manifold......

it can be done for much cheaper....

a garrett turbo w/ internal wastegate, the exhaust manifold, a downpipe, a fuel pressure regulator, a map unit, oil return line & fitting, and an airfilter with piping.
all for 1799.

Thats all you need for a 4 or 7afe. And BTW you could probably go to 12-14psi on 1/4mi runs depending on how many mi. you have and how well the engines been maintained. That block is like an anchor. Sometimes I wish I had kept my old 95- but it had the 4afe...

alright man.... we'll see.... i'm setting the aw11 up for turbo and lets see how much it costs me.... i'm shooting for under $500

i wasn't saying your wrong, i was just pointing out the contradiction...


the only reason...are for a few reasons

106k miles... its had some use to say the least, but that isnt much for a toyoder.

riiiiiiiiight

gonna use the cold star injector to add extra fuel when the afm senses excess pressure..... along with that, found a manifold (whatever flange i want) for $120..... and i can use a 14B with internal gate ($100) or KKK6 ($50) and get an external gate..... just gonna have a simple muffler put on... just go buy the bends for the IC piping then take it to a friends & have it welded up...

if you lived around here i would..... i'm loyal to the toyota guys around here....

and i figured out easily how to deal with the electronics issue of the AFM shutting the motor down and how to get the cold start injector to run.... (and worse come to worse, i can even mount in a second cold start injector as well... i just happen to have a spare sitting here).....

how bout you get the same done for me?? hahah

hey.. isn't it you that brought the head frome me? you need to pay for the extra shipping or else I am contacting ebay.. and will get my money back.

Sriram

just wanted to now if it was you..

thanks for letting me now

Sriram

try again chief... the most recent thing ive bought on ebay would be a fender and some clear corners cause my car is all screwed up right now, i doubt id ever buy something that heavy on ebay just because of the shipping. good luck shaking someone down.