Bisimoto Dyno Charts

[Tippey764]

What header was it running? And what size exhaust? If that was on a Bisimoto header and a 2.5" mandrel bent exhaust, I'd expect a bit more...

However, the exhaust ports on the F22A are a bit restrictive. Some headwork would greatly increase those numbers.



Still, 149whp is QUITE good. That's nearly a 50% increase over stock, with bolt-on mods. The H22 only makes about 165whp, and it does so higher in the RPM range.

Dosent an EX come with 140hp from the factory? Or is that number not to the wheels?

[Shadow1]

Dosent an EX come with 140hp from the factory? Or is that number not to the wheels?

no. and its 145. and that number is to the crank

[owequitit]

no. and its 145. and that number is to the crank

No. It's 140.

[owequitit]

IHE f22 with a6 cam and a good tune can get to the 135's pretty easy
its been done before, i've would had expected this from a stage 1

you'all think this is too much of a cam for that motor?

It's an additional 14HP, which works out to a further 10%, which is not bad, considering we probably don't really know what the cam specs are.

Also, depending on what other parts he bolted on, the cam might be capable of more.

The fact that it added another 14HP while still having a very nice torque curve is a good thing.

*Also, the age/mileage of the engine would certainly play a role. You can really say unless you see the baseline with no mods.

[deevergote]

Peak horsepower and power in a usable powerband are two different things. If your motor has a crap curve, and with a sharp peak at high RPM, it's useless.

And yes, 140hp. Drop 20% for drivetrain losses and age. You're looking at 112whp.

[owequitit]

Peak horsepower and power in a usable powerband are two different things. If your motor has a crap curve, and with a sharp peak at high RPM, it's useless.

And yes, 140hp. Drop 20% for drivetrain losses and age. You're looking at 112whp.

I would change that slightly to say the part of the curve you intend to be working in. You can deal with a gnarly peaky curve, but it has to have the gearing to go with it. This is a good streetable powerband though. The peak torque amount is really good too. I would have to go look at some stock graphs, but it seems to me like that is around a 20-30 lb-ft gain over stock, which would certainly be noticeable.

[deevergote]

Very true. For a drag race car with short gearing, a powerband from 5500-8000 wouldn't be terrible. But for a street car, it's useless to say "My engine makes 180whp!" when the majority of that is well above what a NORMAL person would be operating in.

[Shadow1]

No. It's 140.

thanx you for correcting me. ive always had the thought in my head that it was 145. thanx for that

[deevergote]

The one that makes 145 is the *barf* F22B1.

[Shadow1]

The one that makes 145 is the *barf* F22B1.

lmao. the one without the good head flow. lol.

[deevergote]

It has da V-TECH yo!

[Shadow1]

It has da V-TECH yo!

so if i hook my V-TECH phone to my motor will i have a V-TECH?



another REAL question. lmao.


if i were to get a stage one cam, would i have to upgrade the valve train too or would the stock a6 valve train be ok? like new valve train tho. not "old ive been in the motor since Jesus was alive" valve train. lol.

[deevergote]

The stock valve train should be fine with the Stage 1. It says so on the Bisimoto site, unless they've changed it since I last looked.

I know of people using the Stage 2 cam with the stock valvetrain as well, and having no problems... but i wouldn't risk that. High RPMs are the biggest issue. The soft, old stock valve springs may not be able to keep up, which can result in the pistons getting touchy-feely with the valves.

[Shadow1]

The stock valve train should be fine with the Stage 1. It says so on the Bisimoto site, unless they've changed it since I last looked.

I know of people using the Stage 2 cam with the stock valvetrain as well, and having no problems... but i wouldn't risk that. High RPMs are the biggest issue. The soft, old stock valve springs may not be able to keep up, which can result in the pistons getting touchy-feely with the valves.

would installing a cam(no matter what stage) and getting a tune raise the red line or just raise your power band? im sorry. im getting into this tuning thing. lol. ill make my own thread. sorry to flooding this one. lol.

[mndude07]

I think jdm92accorn gained about 8whp going from a stock head to a ported one.