with my LS/vtec build id like to rev to 9500-10k rpm…will the civic type r pistons and stock shot peened LS rods handle this or will i have to upgrade?
BTW i will be running 13:1 compression
[QUOTE=jaidedeye;1684341]with my LS/vtec build id like to rev to 9500-10k rpm…will the civic type r pistons and stock shot peened LS rods handle this or will i have to upgrade?
BTW i will be running 13:1 compression[/QUOTE]
No. Upgrade.
what do you reccomend then?
lsvtec with b18c1 head…13:1 compression is what i want
You need forged rods. There are many companies that make forged rods for B-Series engines.
Search.
i know there are several comapanies…ive built motors for boost before but not an all motor honda…
pretend you’re building your motor for boost then… just buy some higher comp pistons and make sure they’ll clear your valves
with arp hardware u would be fine for awhile, but ahwile could be 5 days could be 5 months could be 5 years, but i wouldnt guarentee it.
i kno stock LS rods with arp hardware do fine for 8500 all the time. i do it daily =) and have for awhile.
i have been looking around…and found pistons but most will only give me mid-high 11:1 compression. and most lsvtec pistons list the PR3 b16 head…not the B18c1 head…are they both compatable with the same pistons…the b16 head has 42cc chamber and the b18c head has a 41cc right? id rather use the b18c head for the high CR…
would it be overkill to run H-beam rods in an all motor application?
the B16 head is made from the same casting as the ITR head, thats why people use it. and the manifolds between the LS, B20, ITR, and B16 are all able to work. the GSR head is the oddball.
theres never too much protection for you motor.
Using the P72 head (B18C1/B18C-SiR) and using Civic Type R (PCT) pistons will yield a little over 12.5:1 compression with an OEM head gasket and no head milling in an 89mm stroke B-Series (“LS/VTEC”).
Have your block bored .25 and get a set of OEM CTR pistons in the 81.25mm oversized version and you’re set. If you want more compression, use a Mugen or Spoon head gasket to up the compression another .2:1. With engines like this, ALWAYS make sure to test the valve/piston clearance.
Nope.
If you want to rev to 10K reliably, you want the lightest and strongest rods possible.
ok, will the CTR or the ITR pistons be strong enough?
according to the D-H racing site, with a b18a/b block, b16a head and CTR pistons with a 1 layer HG(0.00966666) i will get 12.68:1 compression… ITR’s will give me 11.9:1 …will those pistons handle the compression?
im thinking of maybe keeping the RPM’s under 9500rpm…
[QUOTE=jaidedeye;1685105]ok, will the CTR or the ITR pistons be strong enough?
…will those pistons handle the compression?
[/QUOTE]
Yes.
But you can always get some forged pistons and choose your compression.
[QUOTE=kNOwLedGe420;1685117]Yes.
But you can always get some forged pistons and choose your compression.[/QUOTE]
true…very true… i think this will be my best bet…and ultimately it will be alot stronger and will get exactly what i need…the last hing i want is my motor to fail on me at 9500+ rpm…ouch
So what cams do you plan on running to make power at 10K rpms?
more than likely
skunk2 stage 3’s
or
crower stage 3’s
im also looking into D-H racing custom grind cams
[QUOTE=90DALS;1685020]the B16 head is made from the same casting as the ITR head, thats why people use it. and the manifolds between the LS, B20, ITR, and B16 are all able to work. the GSR head is the oddball.
theres never too much protection for you motor.[/QUOTE]
here calculate ur c/r