I am in need of more low to mid range power as when my car gets into deep snow or mud the engine will bog down and Vtec become worthless. Additionally, when racing I am running between 7000 rpm and redline constantly for extended periods of time and would like to make some more power a say around 5000 rpm to lower the revs a bit.
Currently I have many left overs from my 2nd gen RX7 13BT engines.
So I have a decent RX7 turbo with integrated wastegate, intercooler, bov, 550cc or 460cc injectors, charge piping, exhaust piping extra oil feed lines and a lot of other tidbits.
At the moment I would like to run 5 to 7 psi and I need it to be super reliable as this will be taking a pounding and cannot quit in the middle of an all day race.
So I am considering a cast iron turbo manifold for durability. It seems that a cast manifold can be had for under $100. There are a few different designs out there with different wastegate placement ( I would just block this off) and different turbo orientation features as well as different flanges ( I would either cut the flange off and weld another one one or make an adapter since the RX7 flange is an oddball). Can anyone recommend a cast manifold from experience?
The other part of this that I don't yet have covered is the ECU. I could run a full standalone but in my experience I have found OE ECUs to be more reliable. So any recommendations here?
Will I need to convert to OBD1 to run a hondata or rechip and run Chrome?
Also a few other questions. Where is a good place to pick up the oil supply? Is there a place I can drill and tap the block? Similarly where is a good place to pick up and return coolant to and from the turbo?
Any other tips would be appreciated, keep in mind my goal is to level out the power band and my number one priority is reliability.
Thanks
Will
Currently I have many left overs from my 2nd gen RX7 13BT engines.
So I have a decent RX7 turbo with integrated wastegate, intercooler, bov, 550cc or 460cc injectors, charge piping, exhaust piping extra oil feed lines and a lot of other tidbits.
At the moment I would like to run 5 to 7 psi and I need it to be super reliable as this will be taking a pounding and cannot quit in the middle of an all day race.
So I am considering a cast iron turbo manifold for durability. It seems that a cast manifold can be had for under $100. There are a few different designs out there with different wastegate placement ( I would just block this off) and different turbo orientation features as well as different flanges ( I would either cut the flange off and weld another one one or make an adapter since the RX7 flange is an oddball). Can anyone recommend a cast manifold from experience?
The other part of this that I don't yet have covered is the ECU. I could run a full standalone but in my experience I have found OE ECUs to be more reliable. So any recommendations here?
Will I need to convert to OBD1 to run a hondata or rechip and run Chrome?
Also a few other questions. Where is a good place to pick up the oil supply? Is there a place I can drill and tap the block? Similarly where is a good place to pick up and return coolant to and from the turbo?
Any other tips would be appreciated, keep in mind my goal is to level out the power band and my number one priority is reliability.
Thanks
Will
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