Estimated HP gains - bolt on mods and reflash?

[gamma6]

Originally Posted by Dave-ROR

K20A3.

I agree with the rest.

Umm how long did the engine last? Or was it rebuilt? Cuz 320whp is about the breaking point on a k20a3 reliably as a dd... for those numbers must have been a different k20 and not the a3... kinda confused tho cuz if that dyno results r for the turboed ep then im pretty sure its not a a3

[fatoni]

Originally Posted by NA_T

Am I the only one thinking about ITB's with a carbon airbox redirecting air from right behind the front bumper? Just dreaming.. sound would be epic and redline would definitly be alot higher! Woop!

Probably. I, for one, dont want to spend four figure dollars for one figure power

[ryude]

Originally Posted by gamma6

Umm how long did the engine last? Or was it rebuilt? Cuz 320whp is about the breaking point on a k20a3 reliably as a dd... for those numbers must have been a different k20 and not the a3... kinda confused tho cuz if that dyno results r for the turboed ep then im pretty sure its not a a3

The ep came with a k20a3, which has been proven to hold up to 400whp stock.

[old greg]

Originally Posted by NA_T

sound would be epic and redline would definitly be alot higher! Woop!

No, it wouldn't. That's not how it works.

[Dave-ROR]

Originally Posted by gamma6

Umm how long did the engine last? Or was it rebuilt? Cuz 320whp is about the breaking point on a k20a3 reliably as a dd... for those numbers must have been a different k20 and not the a3... kinda confused tho cuz if that dyno results r for the turboed ep then im pretty sure its not a a3

Not my car, I was replying to homemade who asked if it was a B20... I was just replying with the proper engine code for an EP3.

[Dave-ROR]

Originally Posted by NA_T

Am I the only one thinking about ITB's with a carbon airbox redirecting air from right behind the front bumper? Just dreaming.. sound would be epic and redline would definitly be alot higher! Woop!

Sound would be different than using an IM for sure, it's love or hate though.

But WTH does ITBs have to do with redline?

[himbo]

ITB's would bewbiez. BUT, I'm not sure how they will work with the DI. Plus, a lot of work is involved in setting up ITB's- the tuning would probably prove to be a nightmare.

I'd totally love it though...

[tranzformer]

Originally Posted by Max Schnell

The intake side of this car looks pretty efficient already. The air box looks like it is a vertical panel facing the front with a large intake pipe from the bumper area, K&N panel filter probably would be it. The elbow may be replaceable with a smooth elbow but does not pinch anywhere that I can see. Plastic composit manifold already has better resistance to temperature change.

DI may be able to open up some tuning possibilities though with leaner air fuel ratios without detonation. I don't know if the motor can rev any higher, that would be a easy tunable mod if the valve springs and rotating mass can handle it to push another 500-800 rpms out of the motor.

If the headers are already equal length I doubt there is much aftermarket headers will do.

High flow cat will be on my list because it will be usable either NA or turbo. Exhaust may help with the high flow cat combo but if the main restriction pre-exhaust is not removed it probably won't do much.

Power drops off after 7000rpm. Why would you want to increase redline unless you had other supporting mods to make it worthwhile?

[Sully]

Originally Posted by fatoni

Probably. I, for one, dont want to spend four figure dollars for one figure power

I'm actually wondering about the difference ITB's would make. Normally they don't free up any power until supporting mods are done. But with 12:5:1 compression right out of the box? I'm curious.

[Levi]

This thread starts being really worthless. It is meant to discuss HP-gains on NA engine. Everything is possbile, but the point is at what costs, and until we do not know anything concrete on the engine we won't know. So stop saying this engine can't be any better (and needs FI).

[fatoni]

Originally Posted by Sully

I'm actually wondering about the difference ITB's would make. Normally they don't free up any power until supporting mods are done. But with 12:5:1 compression right out of the box? I'm curious.

while i do think that itbs arent going to be cost effective, i was largely referring to the the huge carbon housing that would negate the cool factor of itbs, cost more and possibly just negate any benefit of itbs in a car like this

[Dave-ROR]

Originally Posted by fatoni

while i do think that itbs arent going to be cost effective, i was largely referring to the the huge carbon housing that would negate the cool factor of itbs, cost more and possibly just negate any benefit of itbs in a car like this

You can put a filter assembly right over the ITBs. That's what I've used in the past. Carbon housing are just fancy, I'd rather either run just the filter with ducting going to it or just weld up an aluminum duct/box for them..

[fatoni]

Originally Posted by Dave-ROR

You can put a filter assembly right over the ITBs. That's what I've used in the past. Carbon housing are just fancy, I'd rather either run just the filter with ducting going to it or just weld up an aluminum duct/box for them..

if i were to run itbs thats how i would do it but the op is talking about some carbon housing running all the way to right behind the bumper

[Max Schnell]

Originally Posted by tranzformer

Power drops off after 7000rpm. Why would you want to increase redline unless you had other supporting mods to make it worthwhile?

This is why I mentioned ECU tuning for DI and revs in the same paragraph. There are any number of reasons that may have the power drop off after 7k. If the car can be tuned to continue to make power then raising the rpms makes sense.