Last edited by Matheus428; 26-01-2005 at 18:14.
Yes..the suplement injectors is the two "fat" silvers cilynders before the nitrous fogger.
Fair point about mapping time.
But your standard non boost map won't be perfect anymore, you will now have lower compression, and a whacking great restriction in the inlet and exhaust.
What about alteration of ignition timing?
The pump was about the first picture (belt driven thing connected to the 6 outlet distribution thingy), you beat me to replying
Sounds like your turbo should be fun though, whatever way you fuel it!
Sorry brian, not really on topic for your thread, hehe
Well, about the pump, is a "mechanical fuel pump" special for racing use. This car in the picture is only for Drag Race use. The mechanical fuel pumpe is really rarely here, most here use eletric fuel pump(in strong turbo use 2 or 3 pumps working together).
And about ignition timing, here have HIS module for control the ignition too, when turbo get pressure, this will linearly modify for correct point. But in low pressure turbo, less than 1kg/cm², don't need it. Because here have alcohol like fuel. And we use gasoline engine, put turbo, and convert to alcohol. And gasoline engines here have 9,5:1 of CR. And when use alcohol, you can use turbo with 0,8 or 1kg/cm² of pressure, without modify the igntion timing, because alcohol resist more than 13,5:1 of CR. And we put colder sparks, correct mixture..and don't need work much in ignition timing. Is only in high pressure turbo.
Here the most turbo cars don't have intercooler, because the alcohol(resists detonation). But i prefer use intercooler, because you can improve power and security.
U use sugar cane alcohol instead of petrol (gasoline), don't u?
Exaclty friend. Is a "vegetable fuel". Is really nice. Make so less polution than gasoline, then, don't need use catalystic convert(and don't lost power), is cheap for make(cheap fuel), and make more power than premium gasoline. Is perfect. Only the problem is the mixture, alcohol engine work more "rich" than gasoline, then, have more consumption of fuel. Alcohol engine is 20 to 30% more comsumption than gasoline engine.
My plan for the inlet manifold now, is to get it in the mill, and get all the inlet tubs flat. Then I will get some 40mm or so tube, and squash one end. This makes the rounded-rectangle inlet port shape (Trust me, I have already done it ) The other end of the manifold needs to be a 48mm circle though. This will be done by heating up the Ali as best as I can, and using a tapered press, I will open out the tube to 48mm. A quick flange for the 'carbs' to sit on, and all should be good.Originally posted by ChrisB
Looks good. How are you going to deal with the transition from round TB to elongated circle manifold?
I have found some material lying around the workshop actually, so I'll be on that tomorrow. Should be a smooth enough transition.
And hey, I think all of this has been on-topic really. It's good to get talking about aftermarket turbo installs.