Thinking about Twincharging.....

[Iron Indian]

I've been thinking about this for sometime now. Donno if i'll actully do it, but i'll entertain the thought nevertheless. I'll start off with a few easy questions...

How do you make the S/C and Turbo work together?
How do you figure out turbo size to work with the M90?
Do I pretty much have to duel intercool?

I currently have a pretty good working A/W IC now which I will keep. Instead of cutting up my car (which I WON'T do) to add an A/A IC too, in place of this ALKY should work DAMN good IMO. Anyone have any thoughts on this?

Oh BTW, I really DON'T want to go strictly Turbo on my car for many reasons. I want the best of both worlds if at all possible....

 

[Merlin]

I have read about this before doing it to a mr2. Tuning it is what i understand to be a bit of a pain. Although once the turbo out pressures the m90, the paracitic loss of hte roots is gone.

I think that running meth may not be a good idea. They are incedible on turbo cars and can really up the spark but my theroy is that they dont mist as well through teh roots blower and tend to congeal again.

I think that if your a/w is sufficient, it should be good at keeping the temps down anyway.

I am always for going big, so i hope you go through with it.

 

[blueguy]

^^ That is what I have heard too...a tuning nightmare, but if you have the time you should figure it out there chief

Methanol Injection would be fine, the only downside any M90 users have ever seen IIRC is the meth eats away at the coating on the rotors, which will only lead to loud rotor slap.

Personally though Shawn, I know you were wanting the twin-charged effect, but just wondering why not block off the M90 and use the block off plate as an IC and run a badass turbo setup?

 

[Iron Indian]

Tuning would be a concern indeed. I'm just doing somework for now.

As for rotor coating. It wears off over time anyway and besides, i've seen rotors with alky and nitrous sprayed on them and they were fine. If nitrous or alky doesn't strip em, time will. Either way, with the coating gone loses are minimal at best. Actully, I used to know a GPer in Colorado years ago (even went and met him once one summer). He used to dyno his GTP all the time. He took out his rotors and stripped them himself for his nitrous setup. On the dyno he only lost 2 or 3 HP with stripped rotors. Obviously his 100 shot later made up for that, and then some.

As for just a Turbo, I don't think thats quite for me. I want something a little different and I want to keep the blower.

If I went strictly Turbo, I wouldn't dick with a blocked off M90 personally, i'd get an L26 and start off on the right path IMO...

 

[tstephens11]

twin charge that thing man do it

 

[BlackGS]

Tuning wasn't that hard. It took me about 2 days to dial in part-throttle by driving back and forth to work (about 25 miles each way). Once I installed an AFC, WOT was a snap with the wideband. I have it running about 14psi max right now with low-mid 11's afr on 16* of timing. Power is sick. I have been trying to get to the track, but the weather has been bad. I should have some times next week. I still have to install a W/A core for the turbo inlet, and once the tranny gets done, I'll be cranking the boost up to about 25psi --- I hope.

 

[Burntfire]

That is Cool, I was talking to a guy at work the other day about doing that to my car, I did not think it was possiable, even thought of mounting the turbo right there too...But I was scared of the tuning nightmare.