nengx07

i have a b20V with eagle rods, pistons, dual valve springs titanium retainer, itr cam chaft, sleeved block, head/block both ported n polish, and a bit more.. can i push it to 9K or should i just stick with 7.5k?? bc ive seen many b20v on youtube going 9K lol... WHAT IS HIGHEST n still SAFE i should go to??

EJ8 GSR-T

If its still making power up to that point, with springs and retainers i dont see why not...but theres obviously no reason to bring it that high if its not making more power.

SOHC_4dr

9K = BOOM!! (most likely lol) the rods you have are still stock stroke correct? you could rev a B20 that high, but you'll run the risk of pushing the piston through the wall. this is one downfall with the CR/vtec builds is that you cant rev em that high. if it was mine i wouldnt go any higher than 7,500

nengx07

alright.. just checking.. i want to try it once bc never went past 8k b4..

raidacaipo

stick to 8k... unless you have an aftermarket oil pan.. not enough oil while reving too high for a long time will = KABOOM!

SOHC_4dr

to put in better prospective, the B16B for instance has a stroke of 77.4 mm, bore 81 mm and is able to rev to 8,400 factory but can safely go much higher. the B20 has 89 mm stroke, bore 84 mm, a big diff and red lines at 6,300.

nengx07

dam never knew that lol... i guess ill stick with 8k.. 7.5k at 2nd-3rd gears rpm drops to 5.3k or so n vtec doesnt kick lol.. 8k makes it stays in vtec all the way

SOHC_4dr

8 it is then, just dont miss shift lol

nengx07

ill try not to miss shift lol..

John M

8k no higher

nengx07

ok ill stay 8K since alot of people referring it ^^

JDM-TIM

i don't know well here is my story i had a b20z2 block jdm b16 head ctr cams skunk2 pro mani with throttle body 70mm supertech valves springs and retainers, itr oil pump, i reved 8.5k daily drove the car for 45k miles no problem, but then i sold the car to this guy and he blew it the very next day! lol
I think you should be fine reving in to 8.5k!

raidacaipo

it blows up because lack of oil.. you need a better oil pan then the oem one.. like Moroso then you can rev higher than 8k..

andoxviii

iTrader: (1)

Don't quote me, but I thought the B16B redlined at 9000rpm.

SOHC_4dr

no it didnt. the factory is 8,400. only the F20C in the S2000 did from factory

ALLxMOTOR EG

miss shift then ka-boom! lol

andoxviii

iTrader: (1)

Oh ok.

I think this is why I thought it was 9k redline:
http://www.tigerjapanese.com/index.p...emart&Itemid=1

SOHC_4dr

tiger blows lol i hear to many bad things from em and they dont know their honda engine vary well.

see a factory CTR cluster here: http://img91.imageshack.us/img91/901...erkleinjh3.jpg

andoxviii

iTrader: (1)

Yeah, they don't know Hondas well at all. They aren't the best company to communicate with, either...but I have had positive experiences with them and will be a returning customer.

SOHC_4dr

as long as they dont screw ya then stick with em

lcsej1

ticking bombbbb. i don't think there is a safe answer for that but if i were you id deff stay below 8k.

andoxviii

iTrader: (1)

Yup. It's easier for me, too, since they're local. I can hand-pick

nengx07

i think 8k is fine and gives the next gear enough power to keep going fast.. 7.5k seems alido weak for me.. but never tried 9k and want to be on safer side.. about miss shifts i havent really miss yet once when racing.. hopefully new grs tranny can handle it lol