All around performer
01-23-09, 01:02 PM
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All around performer
I am getting ready to build an 87 T2 to be an all around performer that I can use for drag, drift, roadracing, and autoX. I know I will need a very adjustable suspension to do all of these things well, but I need to know what components are best. The motor I have is around 450 to 500 est. hp. I believe it is at 15 pounds of boost, but I would have to check (I don't have the car yet, but will be picking it up saturday) It has an aggressive port, Rotary Aviation seals, s T4 turbo, and a standalone. I'm not sure what injectors are in it, as I don't have the car yet, but they will be replaced with bigger ones (The guy who built the motor told me they are fine for pump gas, but to run E85 orrace gas, I will need bigger ones)
I would like to make power in the 600 to 700 hp range, but need to know what else I need to do to make this kind of power, other than re-mapping the ecu, pushing more boost, and adding bigger injectorsto get more fuel to the engine.
Thanks for any information that can be provided.
I would like to make power in the 600 to 700 hp range, but need to know what else I need to do to make this kind of power, other than re-mapping the ecu, pushing more boost, and adding bigger injectorsto get more fuel to the engine.
Thanks for any information that can be provided.
01-24-09, 10:01 PM
#2
You will probably want to start with turning your brain into a sponge and searching around the forums for high hp builds.
To hit 600-700 you may need to get a new rear iron with the thick casting. You may have to dowel/pin the motor.
To be honest I am not 100% sure, but they are things you should look at.
To hit 600-700 you may need to get a new rear iron with the thick casting. You may have to dowel/pin the motor.
To be honest I am not 100% sure, but they are things you should look at.
01-25-09, 02:06 AM
#3
The rear iron on the S4s and many of the S5s will not take that much hp. There's a weak spot near the oil filter that tends to crack the first time the rear rotor detonates. When that happens, it takes about a 1/2 hour to clean up the drag strip from all of the oil that's spewed 1/2 way down the track. The REW block is better suited for 400+ hp.
Not sure what kind of 1/4 miles times you want to run, but 400 should get you into the 12s.
Not sure what kind of 1/4 miles times you want to run, but 400 should get you into the 12s.
01-27-09, 05:32 PM
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How much power should I expect to be able to make on stock rear iron? If I decide to replace the rear iron, and go for around 700 hp, what should I expect for 1/4 mile times?
01-27-09, 06:09 PM
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700HP?! You'll need to replace the entire drivetrain to handle that power if you plan on running with slicks.
The older rear iron can be used in high HP applications but tuning is critical. The rear irons crack due to massive detonation so if your ECU picks up ignition noise or false triggers, you've roasted a rear iron. Generally detonation from running lean will take out apex seals.
S5 irons crack too...
700HP is a level that few people have attained. Spend some time in the single turbo forum to see what the few people on the forum running that kind of power are using.
It will be a lot easier (and possibly cheaper) to accomplish this with a 20B.
Off the top of my head, 700HP on a 13B will require something about the size of a GT45. 8 x 1600CC injectors, and to get reasonable turbo response, a full bridge or small peripheral port. Yes, a street port will do the job but with a turbo capable of making that power you'll see plenty of lag. You're at the limit of the stock intake manifolds before 700HP so those will need to be custom. The engine should have a two piece eccentric with full balancing to remain reliable, and without a doubt, only build on the REW block. Dowel the engine and use a bottom plate to stiffen it up more. Windowed bearings with a loop line and/or dry sump.
The older rear iron can be used in high HP applications but tuning is critical. The rear irons crack due to massive detonation so if your ECU picks up ignition noise or false triggers, you've roasted a rear iron. Generally detonation from running lean will take out apex seals.
S5 irons crack too...
700HP is a level that few people have attained. Spend some time in the single turbo forum to see what the few people on the forum running that kind of power are using.
It will be a lot easier (and possibly cheaper) to accomplish this with a 20B.
Off the top of my head, 700HP on a 13B will require something about the size of a GT45. 8 x 1600CC injectors, and to get reasonable turbo response, a full bridge or small peripheral port. Yes, a street port will do the job but with a turbo capable of making that power you'll see plenty of lag. You're at the limit of the stock intake manifolds before 700HP so those will need to be custom. The engine should have a two piece eccentric with full balancing to remain reliable, and without a doubt, only build on the REW block. Dowel the engine and use a bottom plate to stiffen it up more. Windowed bearings with a loop line and/or dry sump.
