Can the early 13B rotors used in a turbo block? There seems to be some debate on this. Some people claim that the housings are very slightly different (few thousandths of an inch). Mazdatrix says they build 1st gen motors with s5 n/a rotors in them so I would think the gsl-se rotors would work in a turbo block also. Anyone here using this combo?

 

umm why?

 

I wouldn't even bother, not worth the risk to me.

 

It is stated in the Racing Beat catalog & tech tips guide that the GSL-SE 13B had different shaped housings and that the rotors & housings should NOT be mixed with parts from other model 13B engines!



It's a very good little book. I highly recomment getting one & reading it.

 

yeah, why do you want to put the crappy heavy rotors in?



mike

 

Because lots of racers use the SE rotors in thier T2's all the time.

 

Because lots of racers use the SE rotors in thier T2's all the time. [/quote]

yeah, I am not sure where all this hatred for gsl-se rotors is coming from? Why do it? Because I might have a pair handy. Because they result in a quicker spooling turbo and more low end torque. And I would prefer to have the 3mm seals when I get my turbo upgrade. Please don't get into the 2mm vs. 3mm crap. I just wanted to know if someone on this forum has done this.

 

i know of a bunch of people who have done it. seems to work just fine. i just dont see the point, s4 na rotors have 9.4 compression without the wieght penalty. of course if you must have 3mm seals getting 74-85 13b rotors are the way to go



mike

 

I am glad to hear you know a bunch of people who have done it. I see your point about weight. But my gsl-se redlines at 7k rpm so it is not that much of a penalty. With the set-up I currently have, I won't be revving over 7k rpm anyway. I have a 2nd gen n/a and a gsl-se and the difference in initial acceleration is significant between the two. If you have driven both you know what I am talking about.

 

the se will accelerate faster because it is alot lighter. I know what you mean though, i had a gsl-se also... but my t2 launches about 10x harder than the se.. lol.



gsl-se 1/4: 16 or so

t2 1/4: 13



but by dang it! That gsl-se was the funnest car. There is something about the first gens thats fun. I would really like to buy another, but its just not practical for me right now