JDM97EK

I just finished breaking in my new motor and am wondering if boosting it would be a good idea. here is what i have done to the motor.
B18c1 block, dart sleaves 82mm bore, eagle rods, weisco 11.5:1 compression, ARP main studs, ARP head studs, cometic 84mm head gasket. B16 head slight port job, Skunk 2 valve train (all), gsr cams, MSD external coil and i think that's all. I am planning to get the hondata s300. any clue how safe it would be to boost something around 10 pounds or so? thanks again guys!

dunkd

no.

OBRJosh

Should be okay with a good tune, People run boost on stock ITRs I believe there around 11-1, prolly not the best idea for Pump gas but im sure the with the right tune anything is possible.

dunkd

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by OBRJosh &raquo;</TD></TR><TR><TD CLASS="quote">Should be okay with a good tune, People run boost on stock ITRs I believe there around 11-1, prolly not the best idea for Pump gas but im sure with the right tune anything is possible</TD></TR></TABLE>

sure its possible but its retarded, your motor is built to be all motor... keep it that way. it can make power and it may last for a little while though, so good luck.

1Quikgsr

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dunkd &raquo;</TD></TR><TR><TD CLASS="quote">no.</TD></TR></TABLE>

can it be done? sure it can im at 11.3 comp and no problems your limited to makin power because of your compression, but sure you can boost it have fun

2redstars

tuneing will definetly be the key to make it last.

low c/r+high psi = hp
high c/r + low psi= hp

b18sihatch

tuning EMS & fuel management system is key, correct tuning correct fuel systems ect you will be good, but low psi is what you will be able to run with it

Mugencrxsir1

Man if you really want to boost the engine, just go buy a set of turbo pistons. Does'nt take that long to tear down the engine and reassemble it. Otherwise I forsee you blowing something up, you need a really good tuner and a great EMS system. Goodluck.

tony1

Best tuner and best ems in the world, all it'll take is a bad tank of gas to pop it. That compression on pump gas and turbocharged, i wouldn't go much past 250-275whp.

Schister66

11.5 sounds high, but if you think about it, people have been boosting stock S2000s and K20As which to my knowledge run 11:1 compression. How is this much different?

tony1

Piston/combustion chamber design.

Schister66

i guess i have no experience with either setup, nor have i tuned either one...i was just thinking that since they're similar, they might act similarly

Tony the Tiger

I may have to play the role of devil's advocate, considering that I have been running 11.5:1 CR on stock sleeves and a GT28RS @ 10 psi for over a year's time back in late 2004. I only dropped my compression down to 10.5:1 CR later down the road because I wanted more power and decided to go for a full sleeved block, but the setup was sound and was running great before it was torn down.

You may want to seriously invest in a reliable water injection system if you intend to run it on pump gas. Remember, it is not the "PSI" that's important, but torque/WHP. You are safe as long as you keep it under 300 WHP and run at least 93 oct. You should also seek a tuner who has prior experience with finicky high CR boosted setups.

The rewards of boosting with high compression is great throttle response, smooth power transition between vacuum and boost which promotes better traction, more off-boost and partial boost performance and better overall fuel economy

IntegraTypeR

iTrader: (1)

82mm bore and 84mm head gasket!!!!!
are you sure about this?

doood

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IntegraTypeR &raquo;</TD></TR><TR><TD CLASS="quote">82mm bore and 84mm head gasket!!!!!
are you sure about this?</TD></TR></TABLE>

lol i saw that too and was like wtf?

RIPPO

how much of a differnce would it be from tuning on 100 octane to 91 octane? do you guys know? im about to get my friends fully built type r with a HKS turbo and wanted to find out some details. and 1 more thing do you know any good sites for guages? im looking into possibly the Defi amber guages
thanks guys

LsCivic18

There Is A Guy I Know Pushing 8 Psi On A Stock K20 Motor. So As Long As You Tune It Good And Not To Much Boost You Should Be Ok.

illi Adik

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LsCivic18 &raquo;</TD></TR><TR><TD CLASS="quote">There Is A Guy I Know Pushing 8 Psi On A Stock K20 Motor. So As Long As You Tune It Good And Not To Much Boost You Should Be Ok.</TD></TR></TABLE>

Yeah, this is all you need to know...

Anyhow, I would agree and say stay within reasonable limits of power and definitely look into water injection if you are going to be running a full time pump gas tune and you realllllly want to boost this motor.

However, if it were me I wouldnt boost a motor of that compression, call me a sissy but I would just hate to always be worrying about detonation. I dont want to have a motor that could be ruined off a bad tank of gas.

civicjdmb16a

My good friend had a Type-R he had built for all motor then realized how dumb that was so he threw a turbo on it. He ran it hard for a little while.........but eventually he blew it. I think with a motor with that kind of comp. your playing Russian roulette with you engine.

B18cHatch06

here's 19psi making 512whp stock block blah blah 11:1 rsx

https://honda-tech.com/zerothread?id=1820732

Tony the Tiger

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicjdmb16a &raquo;</TD></TR><TR><TD CLASS="quote">My good friend had a Type-R he had built for all motor then realized how dumb that was so he threw a turbo on it. He ran it hard for a little while.........but eventually he blew it. I think with a motor with that kind of comp. your playing Russian roulette with you engine. </TD></TR></TABLE>

You are playing Russian roulette the moment you put a turbo on a Honda...

What power level was he at, and what EMS was he running? I bet none?

JoePSI

In for more info.

JoePSI

Would a car with 9:1 CR and 15psi be safer than one with 10.5:1 psi and 10:psi? I would think the 9:1 would make a little more power but the 10.5:1 would be result in a better powerband. Please chime in.

*Boostwerks*

I'm afraid I'm also going to have to back up Tony the tiger on this...

I'm running 11:1 with my stock B16 bottom, and built GSR top end. We tuned to 340whp on 91 octane. The main reason WHY I wan'ted the higher compression was so the motor wasn't a complete dog off boost. It's actually much more fun to drive below boost than my 9:1 2.0L GSR was. As long as it's been tuned conservatively, and you take good care of your motor it should be able to handle a fairly decent amount of power. Sure I wouldn't shoot for 600 on pump, but a reasonable amount of power isn't asking for much out of the motor.

I also have a visible knock indicator called the knock link. If there is high knock count coming from the knock sensor, I know immediately from a bright red LED, so I can let off and hopefully it isn't too late (hasn't happened yet). Kinda takes care of the bad gas scenario.

civicjdmb16a

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tony the Tiger &raquo;</TD></TR><TR><TD CLASS="quote">

You are playing Russian roulette the moment you put a turbo on a Honda...

What power level was he at, and what EMS was he running? I bet none?</TD></TR></TABLE>

He had AEM and only running 12psi. My point is you can have a turbo honda for years without having any probs.(Properly built and tuned of course) You have a high compression engine and you will definitly have more problems. I personaly wouldnt recommend boosting anything over 10:1 if your gonna build an engine and i am sure that most professional builders would agree.