few months ago People are saying there is No possible way you can put a turbo on a
N/a engine with high comp rotors? then i saw a thread with someone saying they DID? is this true, and is there anyone that can back it up? cause for like the last 8 months i been in here people have been saying you cant, So its like whos RIGHT?

 

I don't remember anyone saying that. Anyone who does is wrong.

 

http://www.aaroncake.net/RX-7/naturbo.htm

 

shiet, what the **** have u been smoken

 

You can put a turbo on an n/a motor, but why would you..

A. the motor was not intended for turbo, so you have high compression rotors. More chance of detonation there.

b. It would cost you just as much to set up a turbo on an n/a motor as it would just to get a turbo II engine and install it. I have done a few turbo II conversions now, and its really not that hard. Harder to fabricate all the **** to put turbo on n/a.

 

Faster for the same amount of boost, almost instant turbocharger response, nice off-boost manners...I could go on.

Can't argue there, but the results are so much better then a TII swap.

As for the thread starter, where have you been the last 4 years? I did this 4 years ago and posted the entire process. Before me, several other members (notably VtekEater) did this. And back in the day, Cartech made a turbo kit for the NA 2nd gen (as well as the 1st gens).

 

I agree Aaron, it does spool super fast with a 6port motor. I also happen to enjoy fabricating things to make the turbo work on an na. And when its all done yuo have a setup, probably like no one else.

 

The problem around here has been a lack of turbo education. Too many forum parrots echoing what they've heard time & time again from the "old guys".

Fact is, turboing an hi compression motor & turboing a low(er) compression motor is the same process! Both need more fuel/intercooling/management to be done right, the difference being which one is closer to maximum combusion pressure when not under boost. The closer you are to this point, the lower boost needed to hit the combustion pressure wall. Some see this as a benefit, others see it as a detriment.

 

Lookup "detonation", this can happen on any engine under the wrong conditions. Go retard the timing 10 deg. on your Civic & drive it at 80mph..... CR isn't the only factor here.

Combustion temperature not ratio, that's the real problem. Proper fuel mixtures (and fuel quality/octane) is more vital the higher the CR, intercooling becomes manditory as well.

 

wow you've been around this long and didn't know i can't belive it there is a thread on it like every day. I love the benifits and i think it will be more rewarding to have done so much work to my own car

 

I should know. I've started like 6 of them.

 

interesting any one want to fabricate me some manifolds lol because I’m just an art student that loves to drive his 7

 

Those who think that turocharging a high-comp motor is bad should have a look around at new turbo engines and see the CR's they run. They might be surprised...

 

Hmm- I have done the first stage of a turbo conversion on my 88 vert (turbo tranny & rear end) and was going to toss a turbo motor with standalone, fmic, e-fan, proper fuel, etc.

Perhaps rebuilding and turboing my n/a (with above mentioned mods as well) motor might be a consideration I had overlooked...

For now I will dive into the search function and see what I can dig up on this...

 

I drove a 88 NA back in 90 and it had a cartech turbo and it was pretty damn fast.

sorry for the worthless post.

MZ

 

I really am suprised by how many people don't realize the benifits of a higher compresion turbo motor.

 

high compression means you'll have better responce, fast spool, more overall HP and TQ per PSI and good off boost caricteristics (sp?). the disadvantages are that you have to run 93+ octain fuel, it's more detionation prone so a good tune is mandentory and thats all i can think of. I think S4 N/A motors would take a turbo a little easyer just because that have slightly less compression then S5 N/A motors. my .02

 

Characteristics

 

Why not make it 2 turbos??

https://www.rx7club.com/forum/showthread.php?t=385540

 

this is the 6th thread on turboing an N/A i've seen lately, thank you all for being brave enought to post the same question over again, new answeres actually do come up in a few of these, i'm convinced, i'm eventually going to do this setup

 

Even thought the repeated threads are getting annoying i'm glad the word is getting out. when i first found this forum i was discouraged about the idea. Not that i wasn't inspired by aaron's write up but it seemed everone on the forum was againts the idea.

 

hmm another thread about turboing a na damn ! hopefully it doesnt turn into a argument.

 

This thread is being closed because this topic is either covered in the FAQ or has been covered many times before. It is suggested that you make use of the search feature and read the FAQ to find your answer. If you still cannot find what you are looking for, then feel free to post your question indicating that you have already looked for an answer, and someone will probably be happy to help.

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