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Q #1. Is the 9:1 compression ratio ok to run a T3 turbo at 10 psi on a stock 1.8L?

Q #2 Will the gtx exhaust manifold work on the 1.8L?


Q #3 Will the stock pistons work without melting with the 9:1 compression ratio?

Q #4 What year RX7 injectors should i use and what size?

Q #5 What is a good stand alone system and could i also get a part number?


Thanks From Dirk Diggler
 

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yes
yes
no, stock BPZE internals are all forged.
I believe the 2nd generation non-turbo RX7 injectors are the ones to get.
megasquirt i guess... it's the new hype... or you could spend some money on an A'PEXI SAFC.
 

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DirkDiggler said:
Q #1. Is the 9:1 compression ratio ok to run a T3 turbo at 10 psi on a stock 1.8L?
Yes
DirkDiggler said:
Q #2 Will the gtx exhaust manifold work on the 1.8L?
Yes if it's a 1.8L GTX

DirkDiggler said:
Q #3 Will the stock pistons work without melting with the 9:1 compression ratio?
If tuned right it will hold 15-20psi, if tuned bad will blow at 5psi

DirkDiggler said:
Q #4 What year RX7 injectors should i use and what size?
2nd gen non turbo or turboII (turbo II you need to check to make sure the impedance is right
DirkDiggler said:
Q #5 What is a good stand alone system and could i also get a part number?
SDS, Haltech, F.A.S.T, Electomotive, Motech

DirkDiggler said:
Thanks From Dirk Diggler
It's not that big, so don't act like it is.
 

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Jeffescortlx said:
It's all in the tune. As long as you keep it from going lean, you wont melt any thing.
10psi will make a lot of power with 9:1.
Ok I was thinking, lets take me for example...I am getting a custom tuned chip on a dyno at a shop 50 miles away form me. I wont be able to do any tuning by my self. Now I'm thinking..do I really even need a a/f gauge? I just read EVERYWHERE that the two gauges that you get are boost and a/f. But if I went lean, there would be nothing that I could do, and its not like I am tuning my engine and need to know the a/f. So what I'm trying to get at is...are a/f gauges all that necessary to a person that is not tuning their car by themselves? I'm just trying to save myself 35 bucks.
 

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Hold the phone on question 2 guys. He said T3 in question 1 so I would assume he has a T3. Now we all know that a T3 will not fit the GTX manifold unless you make some sort of adaptor which would make using the GTX mani a moot point. Might as well make a custom mani. If he doesn't have a turbo we need to steer him to the correct turbo that fits it.

GTX manifold will fit but you need I believe it's either a vj14 or vj20 turbo.
 

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Hmmm.... I kept hearing people on here using vj11's and vj20s or that beastly vj20 Hybrid that Corksport makes... So which ones is it? cause now I'm a bit confused, and I'm not even a newb... I just don't know which turbos bolt up to the GTX/R Manis.
 

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vj-20 bolts up to the gtx mani, as well as the vj-23 if you can find one, and hybrids work as well if your staying with the hot side of the vj-20, Ive heard that vj-14's work also but Im not sure about that cause Ive never done it, and dont have one handy, this is all for the 1.8l gt of course, if you have a 1.9 or a 2.0 escort its a mute point, unless you swap engines
 
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