who.needs.torque

hey is it better to use aftermarket parts or honda type r parts for pistons, rods and cams? id rather do aftermarket, whats a good setup with pistons, rods, and cams that will give me good power all through the rev range. i want to make at least 220 whp with this setup including i/h/e, intake manifold, throttle body, and pulleys and anything else i need. im gettting sick of all the srt-4's around here thinking they own the streets. time for payback . o ya btw im runnen a gutted crx

and i also forgot to ask. i think a gsr transmission with lsd is the overall best i can get for this set up. i want sumthin with good acceleration and good topend. and i think this is good.. do you guys agree.??

primeredbeast

tranny a good choice run a reasonable amount of compression like maybe 11:1 or so but all the power is made in the head setups just my .02

who.needs.torque

what would you need to run that kind of compression??

SlowReaction

If you want try to make the most power your going to want to run aftermarket parts. I'd agree with primeredbeast that most of the power to be made is in the head setup. Take a look in the all-motor forum to get some ideas.

projectegr

it depends on what head you are using

Here is a comparison of the different compression ratios you can get using oem pistons with either a b16a head or b18c head. Type-r head will be the b16a #'s:

Note: This is for 89mm ls crank and std size pistons w/ oem headgasket

b16a:
pr3 - 11.3:1
p30 - 11.54:1
p72-00 - 10.55:1
p73-A0 - 10.8:1
p73-00 - 11.3:1
PCT - 12:1

a0 = usdm
00 = jdm

My recommendation: usdm type-r(p73-a0) or jdm type-r(p73-00) unless you think 11.3:1 is too high. I run the p73-00 pistons in my gsr w/ 2-layer hg and am at 11.5:1 and it runs fine.

My recommendation on topend: Talk to board member "Rocket". Rocket Motorsports imo are the bomb. You can get valvetrain + cams for right at 1000$ I believe. He will recommend the right products for your application. Here is a link to his profile:

https://honda-tech.com/zero...06661

Here is a link to Rocket Motorsports website:
http://www.m24x.com

Compression numbers are based on FF-squads compression calculator and c-speeds compression calculator. Links to both for reference:

http://technet.ff-squad.com/cr-calculator.htm
http://www.c-speedracing.com/h...c.php

Good luck and I hope this helps. If any info is wrong, someone for the love of God and Honda please correct me

rocketfuelcerx

Go turbo built...trust I regret it, but then again you have a CRX

rocketfuelcerx

From my experience with Ls/vtec I would say that 220whp require a fully built head
valve spring/retainers,cams!,port and polish, new valves, as far as the bottom end goes on top of something like my bottom end will get you 200whp reliably
... it was hot tanked, decked,bored, honed IT'S running type r .25 over bore pistons with rings, stock Ls rods, new Honda bearings, new LS rod bolts, micropolished crank proper sealing of short block for LSV...i/h/e 175whp with a stock B16 head w/valve springs and retainers, ported stock manifold,stock airbox with K&N(loud when need be) 8500RPM REDLINES TWENTY TIMES A DAY, 8,000MILES AND COUNTING
THESE HONDA PARTS ARE RELIABLE FOR 200WHP GOALS.... PISTONS ,GASKETS,BEARINGS,BOLTS,gsR HEAD STUDS, OIL PUMP(VTEC),TIMING BELT(ls),WATER PUMP (ls)
Get a Head package or fully build one
FOR THE PRICE OF GETTING 220 i/e aftermarket pistons and rods, rod bolts,headers,intake mani etc.you mine as well turbo build the bottom end put NOS with a stock B16 head with titanium valve springs/retainers,Arp head studs and you will have a 350whp+capable longblock(with the aide of $600 Nos setup) for around the same price as this imagined 220whp engine..