oaasport wrote:No need for a chargecooler at 400bhp. Id be more looking into an r154 trans adaprer because at 400hp itsging to be a time bomb for the transmission. An air to air intercooler will work fine even at 750hp. If you are set on a charge cooler then look up setups in general that people have used. Yes a charge cooler will lag less. However the cost of a proper one can get you a twin scroll setup and that will make lag way less than a charge cooler will. Just saying
oaasport wrote:Lag will depend on piping length. Longer pipe more lag. Cooler air, more power. The gst tine attack subaru runs an intwrcooler thats air to air and he pushes 750hp in 105 degree farenheit heat and it sets record! Proof an intercooler works at 1/4 the cost of a charge cooler. A twin scroll divides the turbine housing on the turbo. One side gets exhaust from cylinder 1&4 and the other gets 2&3s gassest. This makes yhe turbo pulse instead of getting mixed velocity. Type in superstreet twin scroll on google and theres a great article that explains it all! Go to http://www.full-race.com and look at the dyno of there twin scroll sr20det. It shows a larger turbo spoolibg and making more power acriss the whole rpm range than a smaller single scroll.as for trans adapters i cant help yoy as im in the usa. Mines be custom built at an exensive cost but a good machinist can make one for you.
oaasport wrote:Look over the inteernet and read some on twin scroll as its way too much info for me to post lol. As far as setup you need both divided manifold and divided turbo to work properly with two wastegates. As for lag a twin scroll will lag way less than a single scroll, even lag less than a chargecooler on a single scroll.
As for the trans they will shave the bell housing anf make an adapter plate. Contact Beau Yates the australian drifter. He had an r154 behind his 3sge beams powered corolla and to my knowledge is the only one who has done it.
Tosh21 wrote:One thing ill say about the manifold is if you go twin scroll you will probably struggle to fit it in. I made a manifold for my single turbo with an external wastegate and even that was difficult to fit in. If i dont it again I could probably make it a bit better fitting but it is a bit of a nightmare to make it as free flowing as possible. I've had to move my battery, fusebox and tilt the ecu box a bit.
thats where my piping runs to keep it short. I forgot to take a pic after I made the rest of it but it basicaly goes straight in from there
and intercooler mounting
Id be looking at an exhaust housing with a vband exit too, makes it SO much easier. hopefully you can get some ideas and get something made up to suit the bits you have. there will be a fair bit of custom work involved for that kind of power
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