im not changin anything out im using gsr pistons b16 hea di need my car i dont expect to go 12's with it i just want something thatss gonna be decent quick.

 

Approx. 3-4 peak hp...
Approx 10 ft-lbs throughout, but primarily early in the powerband.
Above 7500 RPM, the stock motor is actually a bit stronger.

Anyways... CR drops to about 9.8:1 from the B16's 10.2:1

Overall, a pretty good street combination.

Add a TypeR cam, as opposed to the stock cam, and you'll see gains above 7500 RPM's. About equal until. Would hold with the B16 stock until about 9000 RPM.

The stock B16 pistons will give you an additional 10 hp, and 3-4 lb-ft of torque. Big gains up top, moderate gains through the entire powerband.

All depends on what level of work you want to do. You can combine a # of stock parts to get a good bit of power.

i.e. If you can find a set of B16B pistons, they will yield the highest compression. A JDM B16 is right behind that.

The GSR head will yield higher compressions, and the flow is almost identical to the B16 head. The TypeR head is special. It has raised ports, and a straighter flow path. Ideally, that's what you'd want for power, but...

Almost any external changes apply similarly to the motors (Headers, intake, etc.)

So, you're basically looking at a few extra ponies, and a good increase in torque (almost 10%.)

Should make it a lot more fun to drive.

Best of luck.

 

CTR pistons for the win.

i have a set, buuut they are in my LS at the moment.


www.hmotorsonline.com cheap as shit.

 

yea if i had money i would but right now im tight as shit on cash. i have some b16a2 pistons from the old block but right now i need my car back so bad i dont have time to have the rods n pistons switched at the machine shop
one day maybe once i get time to take it down i could do it but i appreciate the info homda rules best info i have recieved so far

 

tim let me know if u want urecu chiped and a good poor mans type-r tune. like soon caulse i gotta get the kit

 

what year itr ecu do i need to be able to run it it a 99 civic and what do i need to do to be able to run it

 

dont get ctr pistons. read this about pistons first. http://www.honda-tech.com/zerothread/2102707

it explains why its better to use something else due to the dome shape of the piston.

 

That is a VERY good point. Firstly, on the piston weight issue, which causes a "laggy" acceleration compared with a lighter piston, even at the same hp and torque. Further, the information on the "hot spots". Any raised area, especially if it's thin, or has corners, will retain heat during combustion. This leads to knock, which causes you to reduce timing and/or compensate in other ways to keep from destroying the engine. So, while on paper, it may look better, that is paper. It assumes you don't have knock.

(I've never actually seen a CTR piston, so, I'm making some assumptions based on the post.)

 

i used standard gsr pistons and plan on keepin them in there i just need to know about the ecu