In what HP range do you need to warrant sleeves?

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Mar 31, 2003 | 09:49 PM

vwluv10338

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Joined: Nov 2002

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From: severna park, md

In what HP range do you need to warrant sleeves?

Search is still down. I am wondering at what HP levels I am looking at to begin to need sleeves in a B18b block. I would just hate to build my motor and spend a lot of time and money on forged internals only to find out that I should have spent the extra $1500 or so for a sleeved block.

Eric

Mar 31, 2003 | 09:53 PM

BoosterChair

Joined: Mar 2003

Posts: 40

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Re: In what HP range do you need to warrant sleeves? (vwluv10338)

i wouldn't think hp range so much as boost range personally
but i would think 300hp and above is warranting for at least a blockguard, better safe than sorry

Mar 31, 2003 | 10:30 PM

shortyz

Joined: Jun 2002

Posts: 741

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From: abbotsford, bc, canada

Re: In what HP range do you need to warrant sleeves? (BoosterChair)

some guys run 15psi on stock sleeves at the track well tuned.
its not how much hp until you need sleeves its how much boost till you need them.

i woudlnt push over 15psi without sleeves.

Mar 31, 2003 | 10:35 PM

DD_JonnyLee

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Joined: Sep 2002

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From: Greenville, S.C

Re: In what HP range do you need to warrant sleeves? (shortyz)

correct me if i wrong but i think jinxproof99 made 509hsp with stock sleeves, but id sleeve anything over 300hsp to be safe
-j

Mar 31, 2003 | 11:30 PM

Cyber ITR

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Joined: Apr 2001

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From: Baghdad

Re: In what HP range do you need to warrant sleeves? (TrboGSR)

thats rite
cheezefrog also have stock sleeves

Mar 31, 2003 | 11:33 PM

I Like Boost

Joined: Jun 2002

Posts: 1,086

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From: FT. Lauderdale, Florida, USA

Re: In what HP range do you need to warrant sleeves? (SEX DR)

Quote:

thats rite
cheezefrog also have stock sleeves

cheezefrog DID have stock sleeves, until he cracked one. He was makeing 450whp without the 100 shot of n2o. I would say anything over 18psi and/or 350whp i would reccomend them.

Apr 1, 2003 | 09:37 AM

vwluv10338

Thread Starter

Joined: Nov 2002

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From: severna park, md

Re: In what HP range do you need to warrant sleeves? (vwluv10338)

Thanks everybody, its looks like its sleeves for me.

Eric

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Apr 1, 2003 | 09:43 AM

E-Rok

EPIC TUNING

Joined: Sep 2002

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From: WA

Re: In what HP range do you need to warrant sleeves? (vwluv10338)

sleeves are only $700 shipped thru GE I believe....

Apr 1, 2003 | 10:06 AM

hybrid901

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From: Memphis, TN

Re: In what HP range do you need to warrant sleeves? (rewsnaeht)

I would say this is a good rule of thumb.

"I would say anything over 18psi and/or 350whp i would reccomend them."

Apr 1, 2003 | 10:08 AM

#10

civicudesire

Joined: Jan 2003

Posts: 191

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From: north nj

Re: In what HP range do you need to warrant sleeves? (vwluv10338)

dont get sleeved untill you crack the stock ones

Apr 1, 2003 | 03:08 PM

#11

Elite Hatch

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Joined: Jul 2002

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From: Redskin Park, VA

Re: In what HP range do you need to warrant sleeves? (civicudesire)

Quote:

dont get sleeved untill you crack the stock ones

That is the rule of thumb!!! I am running 1 bar daily on my stock (Blockgaurded) sleeves. At the track 1.3bar. If there sleeves go, then I will spend the money to get them sleeved.

Apr 1, 2003 | 07:55 PM

#12

tony1

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Joined: May 2002

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From: Dallas, TX, USA

Re: In what HP range do you need to warrant sleeves? (shortyz)

Quote:

some guys run 15psi on stock sleeves at the track well tuned.
its not how much hp until you need sleeves its how much boost till you need them.

i woudlnt push over 15psi without sleeves.

Actually, it has nothing to do with boost. HP and cylinder pressure is what cracks sleeves. The problem with the stock sleeves is that at over 300whp the least little bit of detonation will crack them. Detonation causes more cylinder pressure than horsepower ever will...

Apr 1, 2003 | 08:30 PM

#13

metal-x

Joined: Dec 2001

Posts: 2,062

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From: Hwy 7

Re: In what HP range do you need to warrant sleeves? (tony1)

does detonation put more preasure on the sleeves then say the pistons/rods?

Apr 1, 2003 | 08:48 PM

#14

boosted hybrid

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Joined: Sep 2001

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Re: In what HP range do you need to warrant sleeves? (metal-x)

Detonation puts massive amounts of uncontrolled pressure across the combustion chamber and cylinder. Its hard to say where the pressure is going to be applied within the combustion. If tuning is on, you dont have detonation, you dont need sleeves.