Just wanted to share my results after installing Bisi's turbo regring into my buddies car. It's a F22a6 with H22 eagles and evo stroker weiscos. Simple log mani with 2.5 inch downpipe, recirculated wastegate, and a 57 trim. Both dyno's were done at 18 psi and as you can see it made a huge gain and gave up nothing.

Stock VS Bisi cam

 

nice gains...im glad someone did this test...im building the same setup currently

 

Did you have the head worked over before you dropped in the cam? What is your valvetrain setup?

Thanks for the valuable information!

 

No headwork, just cam and springs. I actually tried to do the springs on the car but ended up having to take the head off due to me not paying attention and letting a valve fall into the cylinder. Wont make that mistake again!

They were the pro springs and the 1.2 cam

 

Good comparison and good numbers

 

Wow that's a really nice gain! That cam was worth every penny from the look of that graph!

Thanks for sharing your results.

 

i got the same engine setup but a ram horn manifold, h23 intake and 68mm throttle body. I need to get it to the dyno

 

I must say this is pretty impressive, your graph without the cam actually looks like my power curve. Is that power at the wheels bud?

 

thanks for the link man. numbers look great.

 

Nice, my buddy here in Springfield made 470 to the wheels. Stock f22a(1 I think) ex. for Bisi cam & springs/retainers.

 

got info/pics or a dyno for that guy?

 

Good information on the cam... good to see the results. I have a f22b1 motor with a bisi cam and I wish I would have been able to do a back to back on it like this to see how it improved as it also seemed to make a marked difference over stock.

x2

470whp on a bone stock f22aX with only a cam/ springs/ retainers and what I asume is a decent turbo setup... someone pushing that high is fairly un-common to say the least. Would be interesting to know the detail of the setup.

 

i wonder if the torque would carry up top with an equal length manifold.

 

Like I said on the other thread, congrats and good work! Good to see the cam made good power for you!

If you need anything shoot me a call or a pm!
-randy

 

A motor I built, with bisimoto pistons and 1.2 turbo cam, recently made 420whp on 22psi. That's not bad, but the setup is certainly capable of more. It would be nice to have a dyno comparison between the bisimoto cam and the popular 272 delta regrind.

 

sweet comparison... more power and a WAYYY better powerband... always good

 

What was the TQ and what turbo

 

Randull@Bisimoto.Com

Gotta a question. Bisi says a f22 head will out flow a b-series head .I have got the same engine setup with H23 intake manifold, Ported head and valve seat work. I have flow tested the head cant remeber the cfms but was over stock flow and did out flow h22 head What is holding these engines back. I have seen stock gsr engines make 300 to 325 9 to 12 psi on 57 trims. Why would a engine with a larger bore, stroke and better flowing head not do the same. I would have to think it is the stock Intake manifold and TB.

 

I guaranteed you that my motor is making every bit of 300 hp on that boost level. Stock IM, stock head. I'm about to do some work to my manifold and see what I can get. I won't have dyno numbers but I will be able to tell if its using more fuel.

I don't know the torque for the 420 hp f22a, but that is on a 8 blade, stock 12 cm housing hx-35. With a stock h23 IM with aftermarket TB. There would have been a modified IM on the motor too but the owner wanted to use the stock IM for the time.

 

i would like to know what the flow rates for a stock f22a head and a close number with a exhaust port match.
i am in the middle of building a stock sleeved f22b2 h22/evo bottom end and a bisi 1.2 cam. going to be running a 6262. hoping to get a good number out of it.

 

I would love to add my 2 cents of information from my torque numbers and whatnot but I am on a f22b1 so its not going to be the same as the f22aX results.

Good to hear more f22's are coming about making decent power.

slo2k: I have had good results and luck with my 6265 billet so I would say you will be please on a proper setup with the 6262.

 

Honestly I would have to ask Bisi about that, but in my mind I think about it like this, you are comparing the motor from a family hauler to a sport compact, so essentially something that needs flow to handle more load as opposed to something that needs to go fast.

Thats just my thought, I am definitely going to talk to Bisi about it later today, but kind of what you are saying I think it is mostly the IM and the TB that holds it back.

 

What holds back most F series is from making similar power numbers at the same psi levels on similar turbos is RPM. They rev about 1-2k RPM higher than most F series.

 

agreed, that's why torque numbers are important to know.

 

Also, I wouldn't say the cam "gave up nothing". Looks like you spooled slower and also lost some peak torque.

Either way, great numbers. It helped carry out the power a LOT, which I'm sure will be nice for some highway pulls. I'd really be interested to see a comparison to a delta 272 grind.