So in the past, I saw the video of tsuchiya driving a NA 20b that revs to 10k. Simply put, this was a monster. (for reference, this was on "best motoring - battles at 10k rpm")

Is it possible to SAFELY raise the redline on a 13btt (not necessarily to 10k) but any higher would be great, or even just to ensure that when I redline the motor will be safe. I've looked around trying to search the specs of that motor, but since there are so few moving parts, I have no idea what would be involved nor where to begin. Anyone have any insight on this?

 

Hardened stationary gears, carbon apex seals, balanced/clearanced rotors... I'm probably missing something.

You'll want bigger ports, too, to take advantage of those extra RPM.

 

Balanced/lightened rotors and improved bearings/stationary gear are the main things you need. Of those I think the rotors are more important but others may know better.

That said...

The main issue you will run into is the stock ECU's fuel cut. *IIRC* you can't increase the redline without switching to a standalone ECU. With stock turbos this isn't a problem as you will run out of air, anyway.

IMO, if you don't do it too often, revving up to 9K or so isn't likely to hurt anything even with stock engine internals. I ran my unmodified 1st gen motor, with a zillion miles on it, up to 9K (maybe 10K) a couple of times, with no ill effects. And the later model engines already have lighter rotors with stronger bearings compared to that.

 

the engine in an fd is good too 8500rpms, but its not worth revving that high, cause it doesnt make any power up there....

 

Why?
How old are you?
Is this for bragging rights?


-Ted

 

Raising power is more important than raising rpms. Doing the latter is merely one way to do the former....

 

Carbon apex seals on a turbo, don't think so, and yes, there are more mods needed for running the higher rpms. All of the oil mods are the 1st thing that come to mind, then porting, standalone, larger turbo, bigger exhaust, fuel upgrades, yada yada yada.

 

Thanks for the input guys. Engine was recently rebuilt... so I'll have to wait and see how long this one holds up :T

1. Circuit racing purposes, and cause it's my car.
2. 21 - does that matter?
3. No

thanks.

 

Ah, true, forgot it was on a turbo motor.

 

Then pay someone who does know what they are doing to do the work properly.


Yes...it does to me.


-Ted