Quote:
Originally Posted by just startn
speedjunkie- what size manifold piping are you going to use to make your manifold?
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Don't know yet. For one, I'm not sure what all the options are haha, and I haven't talked to Tom (the guy that's going to build it) about all that yet either, I just asked him if he'd build it for me. He has hand-built whole exhaust systems before and they're gorgeous. So I think he'll do just fine haha. And luckily he's local, so I'll just drive my car over there when I get back and start pulling out the turbo and manifold so he can get to work.
Anyway, I'd like to use a size similar to the pic I posted on the previous page, something large enough that I don't have to worry about it being restrictive. I'm not sure what sizes are offered in 321 though.
I know this is more than what you asked, I'm just excited about it haha.
Quote:
Originally Posted by RICE RACING
I really need to scan some pictures of the Benetton BMW F1 car's intercooler for you.
Flow and angles n shit makes less difference when you are running higher and higher pressure ratio's, which lets face it you have to on any rotary due to its small capacity be it 2,3 or 4 rotors compared to what you have to work with in any decent reciprocating engine.
Same for pipe work sizes etc. IMHO I use the stock std 2.75" pipes in my rig and I say again make so much power that the car is almost un enjoyable as you just cant rev it out in 3rd gear or what ever cause you are just doing over 100mph in less than 2 seconds. < This fact is hard to convey to people who have not had a really fast car yet. Its so easy to get almost 600bhp out of a 13B its not funny and when you are there and you have it in a car of 2800lb or so then all this talk of intercoolers and manifolds and turbos A/R's etc will all seem academic to you............ you will know it when it happens 
What ever all of you decide you WILL need water injection to make it durable *long term* like I have proven with RICESP, without it you can measure the life in minutes LOL |
One thing I need to mention is that at this time I'm not interested in using race gas, so I won't be pushing any more than 20-25psi.
It's funny you mention all that, because I'm not so much looking for high HP, my main goal here is the quickest response I can get. What I'd love is to have the response of the stock twins but in a single turbo setup. I know that's pretty impossible, but if I can get at least somewhat close I'll be happy. If I get high HP out of it, that's cool. Honestly though, the altitude where I live robs us by 27% on a boosted car (I don't know how much on an NA but I can't even imagine), so the higher HP the better, but it's not my main concern. When I go back home to closer to sea level I can really tell how much my car is actually putting out. It's quite a difference, and it's WAY fun haha. Really though, I'm not sure if any of my setups have put out what they were supposed to, and I'm not sure if it's because of the altitude or what.
I am already using the FJO water injection kit. It's injected about half way between the IC and the intake elbow, JUST past the BOV. I'd heard of people (well, mainly you haha) injecting at the turbo, but I was wondering how much, if any, got stuck in the IC and never made it to the engine. I also figured since mine is injected anyway and not just sprayed, I wouldn't need the turbo to atomize it so I could put it pretty much wherever, but I still wanted to put it just past the IC instead of in the elbow. I'm not using it for more HP though, I'm only using it for protection of the engine. I'm using windshield wiper fluid...it's already mixed the same every time, so I don't have to worry about mixing up ratios (which I probably would lol). I was using just distilled water at first but it got cold enough pre-winter that it froze and burst my pressure sensor, so I moved to wiper fluid.