Cams questions:
Is there a compression requirement to run s2pro2s? if so, what is it?

Has anyone been running s2s2, s2pro1 or s2pro2 for a long time? if so, any issues? I am aware of the higher than stock idle with pro1 and pro2. My tuner says its easier to idle pro2s than pro1s

What aftermarket valve train, retainers and valves would suffice in terms of long-term reliability OR OEM ITR

Pistons Questions:
Would you rather get aftermarket pistons (balanced, blue-printed and weighed) OR OEM ITR? If we are talking about mainly reliability. If aftermarket what would be most reliable setup.

All of this going on a USDM B18C1, obd-1 tuned on 94 Octane. (not sure which program i will be using, neptune, crome or hondata) I have to talk to my tuner about it.


Block Questions:
I want to be able to rev to 8500rpm, what do I have to do to run it reliably. heat-treated?
I am looking to make around 200-210whp with my power-band from 5000-8500rpm

Response from people running similar would be appreciated.

Thanks,

 

Not necessarily a compression "requirement" but if you want to make power, then yes. You will need 12.5:1ish range. Need to up that to CTR pistons not OEM ITRs. I've had good luck w/ CP and Wisecos for long term durability. You will need something stronger then stock ITR valvesprings, I'd recommend skunk2s myself, but everyone on here as a different opinion on the valve train idea. No need to heat treat the block, they hold up just fine to 8500 rpm. I will say that S2P2s are gonna be a little outside your rpm range unless you're running a 1.9-2.0L setup. I'd recommend the Pro 1s for what you're looking for.

 

you can still make power with 11.5:1 compression and large cams..

i made 278hp with my 2liter and pro3's

b20vtec/typeR head with a street port..

 

prohonda......can you elaborate? What cams? pistons?, etc. I will be keepin my block stock in terms of sleeves and bore. 278 is a hefty # i wont be doing anything crazy like that. The car would be a DD.

95 integra.....the reason why i was staying away from CTR pistons is because the car would only be using 94octane and when i tried to test the compression on zealautowerks...it gave me 13.xx...do you know or yourself have used CTR pistons on 94octance with aftermarket cams? if so, was the setup reliable?...how long have u been running CP and Wisecos for? s2pro1s have the idle problem. I want to idle as close to OEM as possible. Another alternative would be Toda A or Bs but they are stupid expensive so i would have to wait and save up for that.

 

If its a daily driver then why do you want your powerband so high? Driving on the streets you'll rarely get to see 5500+. Unless you drive like a maniac.

 

I am going to circuit race the car, i don't care if i have power in the low-end but i would want power in the high end. Im going to DD the car during the summer and store in the winter after I build my engine. Right now, its a DD because the engine is stock.

 

im using wiseco pistons and eagle rods..

cams were s2pro3's as i said..

if you will be doing any kind of road racing you will want a good powerband low and high so i would rec. s2pro1's for you..

as far as the idling problem you speak of.. they dont have a idle problem unless you dont have means to tune..

i have the pr03's and it will idle at 900rpms no problem.. of course i have a stand alone engine management though..

 

wow pro3s idling at 900rpms....must be the tuning and engine management
I'll stick with pro1s or TODA As (if i can find a good deal)
what crank are you running? how long has it been since u been using wiseco and eagle? do u race often? what valvetrain, retainers would you recommend for my setup?

 

my engines life has consisted of a dyno mule so far.. i have well over 200 dyno runs..

as far as valvetrain that would depend on your cams.

im using rev springs and retainers and supertech valves

and yes its the engine management and tuning to make it idle.. it has a nice lumpy idle..

 

that sounds like a good setup, what would you recommend for s2pro1s in terms of head components.

 

id would say get the skunk2 springs and retainers..


easiest way to know your stuff will work fine..

if you have a engine builder then you could trust what they tell you to use.. thats what i did.. donf built my engine..

 

ill talk to my tuner and see what he says......but ur saying s2pro1s should be able to be idle fine with neptune or crome obd1?

 

ive never used them so i cant say much about them.. all i can say is with proper tuning they will idle fine..

 

thanks for all ur help, one last concern, have you heard of cams snapping? If so, a friend of mine advised me to stay away from most aftermarket companies other than spoon or toda. Are skunk2 cams easy to snap?

When we are circuit racing, sometimes we miss shift the gears and it revs to something crazy like 10000rpms, its only for a brief moment but regardless it happens. I know OEM block and cams would be able to handle it but what about a built engine?

 

well like any engine if you mis shift and over rev you have a chance of breaking something..

when you start using larger cams you have a chance of hitting things on a misshift..

dont mis shift..

skunk2 cams are great.. dont worry about snapping cams lol

 

I ran CTR/S2S2s back in the day for about a year and a half w/ no problems....on 93 octane. It all depends on your tune. I usually only have a build for 6 months to a year before it's torn apart or sold, but I have disassemblied more then my fair share of "blown" motors, and there seems to be a high percentage of them that come back w/ JEs (though I've personally never had a problem w/ JEs, so it could be build issue, but I find JE has a much higher %).

Also, for what its worth, I'd stay away from the Toda A's. I was never able to make alot of power on them myself....think I ended up making 178whp w/ ITR pistons (stock GSR block) and misc other work done...which is less then stock ITRs made.

 

what was ur compression with s2s2/CTR? was it a ported head? what and who did you use for tuning? what block was it b18c1 or c5?