B16 Turbo Horsepower

[IntegraB16]

Here in a couple weeks i am going to be putting a turbo on my B16A. it's not a large turbo, but it is better that the one i have (none) I will have a front mount intercooler 440 injecters, a hondata s100, full 2 1/2 exhaust, good intake, MSD, and running 10psi. I also have a set of ITR cams. I will be having it tuned by a good shop here in town. I'm sure i am forgeting some stuff... But i just want some opinions on what kinda HP you guys think i might be pushing.. To the crank and maybe to the wheels. Any input would be appriciated.

[slow_99integra]

10 psi on stock internals with a high cr? i do not know too much about turbos, but i think 10 psi is a lot on that engine. i could be wrong.

[IntegraB16]

The guy at the shop says it is ok.. He seems to know his stuff.. I am with you on the High compression though. All i can really do is take his word for it.

[CivicSpoon]

10 psi means different things for different sized turbos. You could run 10 psi on a daily driver with something like a T25, and never have a single problem. But then you could run 10 psi on a T3/T4 and blow up your engine on the first pull. The tuner will tell you what is ok for your engine, so don't worry about it too much.

As for hp, the only way to find out is from the tune. There are too many variables to be able to figure it out (especially the sized of the turbo you're using).

[IntegraB16]

I asked the guy and he said it would be just like the ones that come on the turbo eclipse's, but a new one.

[CivicSpoon]

Then 10 psi will definently be fine. They are similar in size to the T25's and T28's; just a little bigger. I've compared the T25 my friend had and a stock eclipse one that he is currently working on.

[superbluecivicsi]

lose the itr cams. get some oem gsr cams and adjustable cam gears or throw the original b16 cams back in. 440s are good, but, if you can get some 550s, that would be much better on your ability to increase boost safely. guess that intake is gonna be the new charge pipe. a 3' downpipe to a hi flo cat/testpipe and 3' exhaust will yeld you some good gains vs the 2.5'. dunno what turbo your using, but, whether it be the pr3s or p30s a good conservative tune after the install will square you away.

[superbluecivicsi]

Originally Posted by IntegraB16

I asked the guy and he said it would be just like the ones that come on the turbo eclipse's, but a new one.

i believe you can find a better turbo than that.

[turboEKhatch]

Originally Posted by superbluecivicsi

lose the itr cams. get some oem gsr cams and adjustable cam gears or throw the original b16 cams back in.

ITR cams will be worth a good amount of power over GSR cams, and GSR cams will be worth a good amount of power over B16 cams. Especially with a small turbo where the ITR cams will help make up for it's lack of top end power.

[superbluecivicsi]

Originally Posted by turboEKhatch

ITR cams will be worth a good amount of power over GSR cams, and GSR cams will be worth a good amount of power over B16 cams. Especially with a small turbo where the ITR cams will help make up for it's lack of top end power.

im assuming this statement is in conjunction with cam gears?

the gsr's 17 degrees of overlap vs the itr's 25 degrees of overlap can be dialed out with cam gears. i took my b16 w/gsr cams to 10k without boostcreeping

ive ran and heard nothing but good on gsr cams. i would go with gsr cams alone without cam gears on my boosted b16s anyday vs the itr cams.

itr cams have always been debatable.

search and make your own decisions

[turboEKhatch]

If you look at some of the cars Jeff Evans/Boosted Hybrid has been tuning, they are all making significantly more power with the cam gears dialing in more overlap than stock. Overlap boosts high RPM naturally aspirated efficiency, and this in turn boosts high RPM turbo power.

[turboEKhatch]

http://www.boosted-hybrid.com/viewtopic.php?t=1744

"The intake was +4, exhaust was -2. This is opposite of what people recommend for tuning turbo cars. I am dialing in overlap, not out. The other engines have been anywhere from +3 to +5 on the intake, and -1 to -3 on the exhaust. My thoughts on the matter are that with log manifolds (this car was using one), scavenging goes to crap. Increasing the breathing of the engine opens up the engine with the higher exhaust pressure from running the log manifold, and allows for less exhaust gas contamination to occur. I noticed that the plugs burnt much better after the cam gear adjustment, as well as less ignition advance needed to be run (and not because of retarding the ignition timing since the intake cam was advanced)."

The graph shows the car picking up as much as 20 torque, and lots of power all over.

[superbluecivicsi]

like what was said, before, itr cams are debatable. search and you will be able find out what you want to do.

in the link, cam gears where needed where they not?

what is the key to that links tune? the itr cams or the cam gears