Well, I'm considering jumping on the blow-through turbo 12a bandwagon! Heh, I realized I have a boost controller, a/f and boost guages, an intercooler, a turbo (mitsu td04) that arnt being put to good use, so I figured, I might as well give it a shot. Now for all the questions... First off, I plan on running a minimal amount of boost (7psi or so), so should the small mitsu turbo be good for the job? My plan was to use a weber side draft, what size would you suggest, and where is a good place to find one? Also, where can I find a carb bonnet for a decent price? hmmm, I guess thats all I have to ask, another thing, I have about 1500$ to spend on such a project, and I already have the turbo and intercooler, and the guages and whatnot.. thanks

 

do a search on it. moremazda did the same setup you are looking at doing, and he did a write-up on it. Good luck!!

 

I've searched, I've read, and all that good mess. It doesnt answer my question, will the mitsu turbo suffice? Hmm, I did see the carb bonnet on the site moremazda sugested. Also, I asked where I might go about finding a weber package for a decent price. The mazdatrix weber is about 805$ I beleive.

 

contact 680rwhp if your interested in a weber blowthrough setup, im sure he could help you out.

 

The Td04 seems a bit on the small side..... not to say it wouldn't work, but you'd be choking the engine quite a bit, so you may not get the gains that you'd expect. I'm not 100% on this, cause I don't know mitsu turbos very well.

 

It does look a bit small.... The turbo is actually off of a 91 volvo 740 turbo. It has 2.3l 4cyl. It pushes about 160hp at 7psi i believe. That said, the mitsu might be a bit on the small side, considering I'm looking to have about 220hp (on a sp 12a that is). I'll drop 680rwhp a line, and see what he says. Thanks for the help!

 

Look around on some hot rod VW websites for a carb hat. There are turbo kits for the VW bugs and the common VW engine that commonly use Weber carbs and they need to have bonnets too . Or, just be like Ryan and make your own

~T.J.

 

yea, it woudl be pretty cheap to jsut make your own. Specially if your, or a good friend, has decent welding skills :]

 

160hp @7psi , that SP (street port I'm assuming) 12a puts out more than that...... @ 0psi.

 

The thing I'd be conserned with is the A/R ratio of the turbine. Mitsu turbos in general have somewhat small A/R ratios, compound that by throwing it on a rotary, and you end up with a turbo that spools a 2k, but craps out at 5-6k.

 

yea, i really should look for another turbo... time to start goin through the boneyards to find a second gen turbo. I didnt really expect the mitsu to be suitable, but hell, I can always hope....

 

i have a friend who is selling 2nd gen turbos if u r still interested let me know and i ll find out for u.

Joe

 

do they come with manifolds? and how much?