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Rebuild? Need Some Experience Opinions

Old 02-03-2004, 10:12 PM
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Hey this is my first rotary project which I've been looking forward to for a while. Anyways I just bought the engine and trani from Japan with 24k on it, it even came with an aftermarket Knight Sport upgraded turbo, but I bought I TO4b brand new to throw on. My question is am I gonna just blow my engine or does anyone think putting it together would be practical? I also have a Haltech E6k, Tial 38mm Wastegate, still need a BOV, 1600cc secondary injectors, Walbro 255 Fuel pump.

From a lot of forums reports on rotaries it sounds like I'm asking for problems if I don't do a rebuild or at least a small street port. I really am I on tight budget and wanted to just get it running. So any opinions would be greatfully appreciated. Oh and I'll through some Turbo specs if anyone is wondering and a map.



Compressor Wheel: Super-S Trim

Inducer Diameter- 1.904

Major Diameter- 3.000

Compressor Housing: Standard T04B

Compressor A/R Ratio- .60

Compressor Inlet Diameter- 2.75

Turbine Wheel: P-Trim

Exducer Diameter- 2.544

Major Diameter- 2.922

Turbine A/R Ratio- 1.15

Turbine Inlet Diameter-3.000
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Old 02-03-2004, 10:27 PM
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If the engine has good compression, then there is no need for a rebuild. Also porting does nothing to help engine strength. Once you get all that stuff put together the main thing to keeping the engine alive is proper fuel delivery and timing.
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Old 02-03-2004, 10:34 PM
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Well does anyone know if I'll need a new fuel rail with the Bosh 1600cc injectors?
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Old 02-03-2004, 10:34 PM
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1.15 A/R is pretty good size is it not? Especially on a stock port motor.
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Old 02-03-2004, 10:37 PM
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Which rail are you using? More than likely you will need to modify the rail.
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Old 02-04-2004, 01:48 PM
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Originally Posted by ****' date='Feb 3 2004, 11:34 PM
Well does anyone know if I'll need a new fuel rail with the Bosh 1600cc injectors?
You can either a) mill the stock rail to accept the bosch style 1600cc b) modify the injectors, or c) buy an aftermarket fuel rail.
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Old 02-05-2004, 06:47 PM
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Originally Posted by Mazderati' date='Feb 4 2004, 12:34 AM
1.15 A/R is pretty good size is it not? Especially on a stock port motor.
1.15 is too big for a street car non ported. 1 or less is better for street. using something that big you better have divided manifold/turbine and dont mind having a peak power in the upper rpms.
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Old 02-05-2004, 07:00 PM
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Originally Posted by turborotor' date='Feb 5 2004, 07:47 PM
1.15 is too big for a street car non ported. 1 or less is better for street. using something that big you better have divided manifold/turbine and dont mind having a peak power in the upper rpms.
Yup I am going to use a 1.15 P trim on my half bridge'd motor..
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