ok, what i have is a 13b out of a 86 base, what i want to do is put '91 rotors in, port it, and add turbo (t3/t04) to this equation, would that be a hard road to travel? actually what im asking is, is that probable, thats what i have to work with, and if it is whats the best port setup i should do? thanx

 

You'll need an s5 eshaft, front counterweight, and flywheel if you want to use the s5 rotors.

 

alright cool, im glad that its not too out of the question, thanks for the reply

 

You don't need a S5 eshaft to just run S5 rotors?!!



The stock 6-ports are pretty good for turbo'ing, IMHO you should definatly be taking out the sleves and actuating hardware. I had a hybrid turbo on my stock '86 N/A, originally off a Mitsubishi, but had been hiflowed with a T04 front and a bigger exhaust wheel and housing to suit. Was a great sized turbo for the job, never got to take it to a dyno before a chipped a couple of apex seals due to a wastegate line falling off!



But I did run a 14.8 on an untuned microtech running 4-5psi... hehe.

Thats with some bald 60/205 yokohama A539's... which as some people here might be aware are a pretty **** tyre

 

I'm going to assume that since your going to be running a turbo on this 86 motor your shooting for 91 Turbo compression rotors right?

 

Ya. if you put in 91 turbo rotors at least your compression will be right, but there still maybe issues with the older rotor housings(86) and there spark plug location.

 

I thought the t3/t04 was a ***** turbo not to be used on rotarys just hondas and baby DSMs please forgive me if im wrong just what i was once told



David

 

T3/t4 turbo could basically be anything at all...........



MOST T3/T4 hybrid turbo have a too small of an exhaust housing (usually T3 sized) to not choke a rotor.

However some, like for instance my hybrid t3/t4 turbo has a larger exhuast wheel than a stock Series 4 one with a machined out housing to suit... and a T04 front on it..



So like I said, T3/T4 doesn't particularly mean that much at all, you need the exact specs of it.

 

If I recall correctly, Judge Ito said I needed the S5 eshaft. The length is different I believe.

 

actually i was goin to go with the 91 non turbo rotors, and the t3/t4 is what i have(i got it dirt cheap)