Dominik

Looking into boosting my B18C5.

I'm going with a mild set-up to make around 310whp. I'm not looking for alot of power but safe.

My main conern is how ****ty the b series blocks are designed.
Since the set-up will be mild does anyone think just a block guard will be enough?
Also, I'd like to lower the compression ratio, either by doubling up head gaskets or buying a thicker one?!?!?

I've heard lots of horror stories with people boosting their type-r's and the motor only lasting no more then a week. Well, I think it can be done with some methanol injection and with a good street tune the motor should be able to handle it.

Other then fully building the block, anyone have any suggestions?

chris_si98

Yo Torreto

msg me on msn, i'll answer all your q's. I'm too lazy to type this biatch out.

sol2nv

hey dom i dunno why u gonan boost it u woul dhave to change pistons and somethings type rs come already with high compression so u would have to change everything to low compression best bet jus buy a gsr and stick that on boost gsrs love the boost type rs are better all motor or supercharged good luck wif ur project

zeeman

iTrader: (1)

the problem with boosting stock R's is that they're pretty high compression engines (USDM 11:1 and JDM 11.5:1).
IMO thier design isn't ****. Slap some 9.5:1's and eagle/crower rods and have fun with 18psi.
Stock, tuning is crucial, at a minimum i'd run a thicker headgasket and some ARP head studs.

chris_si98

^^ meh.. i told him if he's going to build the block.. might as well sell the c5 and buy a c1.. that way he won't really loose that much money.

bbarbulo

iTrader: (2)

sell your highly desirable C5 and pick up a B20 block. you will reach your 310 hp goal more easily and with less money.

imported_plzbeleiveit

id say go with the c1 block and put low compression pistons in it.

b20 blocks dont have oil squiters.

chris_si98

so?

kwasley

t3/t4 jrsc b20 head b16 BE
sounds like a crazy setup chris...lol

any chance you got your y8 exhaust mani lying around?

chris_si98

yeah I do actually.

dingus888

sell it and get a c1 or threw a thicker head gasket and head studs as was stated before with a nice sized turbo and 300 ish whp shoudl be fine

point beign the c5 isnt' that good for boost I mean even a b16 or c1 wodul get 300 whp pretty easy with jsut head studs and gasket

Dominik

Thanks for the input.
I wanna boost the R cause no one really does it and if they do, they don't last long because they don't do it properly.

I'm going to look into headgaskets and a block guard.

I plan on doing this properly and being apart of the few that have done it successfully on a stock motor. Don't get me wrong the GSR/B16 are good as well but for me to find a good GSR then sell my good R is to much of a hassle. I don't have time for that.

My plan is to pull the head, get it worked abit with a rebuild, put the thicker gasket and block guard in and put it all back together.
My goal is 310WHP, if I can push more out of it I will..

What about swapping to GSR cams? Doing some research, the C5 cams overlap and boost doesnt like that. Most people who boost b16's swap to GSR cams, does the same go for C5's? Or should I invest in adjustable cam gears and just tune them out?

Thanks!
-Dom

chris_si98

damnit.. I missed your msg torreto.

Sorry man, i'll reply next time you msg me.

Nova_Dust

You can run turbo with high compression, harder to do, but result is just as rewarding.

Not many people turbo C5, but very little turbo with high CR, so why not be the latter one?

bbarbulo

iTrader: (2)

I gotta ask, why the hell would you get the head worked on... the head is not what's gonna fail here. The pistons are most likely to melt due to excessive combustion pressure and likely detonation.

If you really have to boost the R, then low compression pistons ARP studs, OEM gasket, Crower forced induction cams are the ticket. But then you don't have an R anymore... you have a built B18 with prolly a grand into it that you didn't have to spend. but since you're doing pistons, might as well do rods too.

oil squirters... so what? boost doesn't require high RPM... boost requires high exhaust volume, for which one thing stands true... no replacement for displacement.

zeeman

iTrader: (1)

you know that its highly recommended to have the block bored and honed after installing a block guard right?
ITR cams are great for boost. Get some adjustable gears if anything.

imported_Fug

what is this block guard i hear so much about?

zeeman

iTrader: (1)

a waste of money IMO

imported_Fug

hey andrew, how much would u charge me to do my new headgasket and arp headstuds on a b18b engine?

zeeman

iTrader: (1)

1 bajillion dollars