B20/VTEC at 4psi... for now?

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Jan 13, 2003 | 07:07 PM

hybridsol

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From: V8 Land, State of, USA

B20/VTEC at 4psi... for now?

Motor runs REAL good. Limited by BOV at 4psi right now. Scared to go higer, don't want to throw a rod or blow it up. Setup:

B20B w/ GSR vtec head/GSR cams/Stage 1 port
STOCK BOTTOM END
2mm Head gasket = 9.0 CR
440 cc injectors
Hondata stage 4b w/ wide band
F-max T3/T4 turbo w/ Tail WG and IC

I can run like this for a while till I get eagle rods/pistons (prob april). Any suggestions? the WG spring is 9psi. Should I gat a 6 psi spring? I have more than enough power to run auto-x right now.

Suggestions PLEASE

Jan 13, 2003 | 08:07 PM

highbrid

Joined: Jul 2002

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From: Chandler, AZ

Re: B20/VTEC at 4psi... for now? (hybridsol)

Your rods should be fine, I'd be more worried about the rod BOLTS. I had a crvtec that i revved to 9k all the time, bone stock except for ARP rod bolts. Running a nice 5-7 psi would yield some good power with your setup.

Jan 13, 2003 | 09:23 PM

hybridsol

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From: V8 Land, State of, USA

Re: B20/VTEC at 4psi... for now? (highbrid)

Yea, that's the kind of thin I'm not sure about. The head is good to 10K with all the work I've done, but I've got the rev limiter set at 7K, just to be safe.

Thanks for the reply.

Jan 13, 2003 | 09:27 PM

SiBirdie

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From: San Grabiel Valley, South Cali, USA

Re: B20/VTEC at 4psi... for now? (hybridsol)

my god you shitting me ? Rev a bone stock b20 to 9k? with no block gridle? ARP rod bolts be good, but its not recommend for stock redline rev like 8000rpm. But after that I suggest you get it for cheap insurance.

goodluck CRVTEC + T3T4 = OWNZ

Jan 13, 2003 | 10:06 PM

ATYPR

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From: NC

Re: B20/VTEC at 4psi... for now? (SiBirdie)

Don't go passed 10psi on stock sleeves.

Jan 13, 2003 | 10:09 PM

simple4012

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From: NEVER FORGET

Re: B20/VTEC at 4psi... for now? (FUCATYPR)

looks like a very nice seup. good luck

Jan 13, 2003 | 10:20 PM

ezark

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From: So., CA, USA

Re: B20/VTEC at 4psi... for now? (hybridsol)

i had a similar setup... 8psi up to 8k rpm with no problem. had it for quite a long time, and the b20 is still good.

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Jan 14, 2003 | 08:24 AM

highbrid

Joined: Jul 2002

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From: Chandler, AZ

Re: B20/VTEC at 4psi... for now? (gsR-T mode)

Yeah the b20 I had is still running low 13s daily driven in someone elses car. They arent all that weak.

Jan 14, 2003 | 08:33 AM

ATYPR

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From: NC

Re: B20/VTEC at 4psi... for now? (highbrid)

Quote:

Yeah the b20 I had is still running low 13s daily driven in someone elses car. They arent all that weak.

Yes they are when it comes to boost. We've been building b20/vtecs for three years now and they only one that has failed was one running 12 psi.

Jan 14, 2003 | 12:11 PM

#10

hybridsol

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From: V8 Land, State of, USA

Re: B20/VTEC at 4psi... for now? (FUCATYPR)

Thanks very much for the replies. I won't go past 7K, but I feel better about uping the boost a little (6-7psi). That BOV is annoying at full throttle! I'll post pics on the "show me your **** so I can steal it"post

Sean

Jan 16, 2003 | 10:38 PM

#11

ATYPR

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From: NC

Re: B20/VTEC at 4psi... for now? (hybridsol)

You can rev it to 8k all day. Just don't go past 10psi or you'll be sorry.

Jan 16, 2003 | 11:01 PM

#12

accordking

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From: Newark, Ca, US of A

Re: B20/VTEC at 4psi... for now? (FUCATYPR)

This is on the same set up as yours

well over 12 psi. and drove it home(about 60 miles one way).

pictures courtesy of flip1199

[Modified by accordking, 12:05 AM 1/17/2003]

Jan 16, 2003 | 11:06 PM

#13

ATYPR

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From: NC

Re: B20/VTEC at 4psi... for now? (accordking)

How long has it been together??? Doesn't matter, it won't be much longer.

Jan 16, 2003 | 11:10 PM

#14

ATYPR

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From: NC

Re: B20/VTEC at 4psi... for now? (FUCATYPR)

Quote:

How long has it been together??? Doesn't matter, it won't be much longer.

Jan 16, 2003 | 11:22 PM

#15

highbrid

Joined: Jul 2002

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From: Chandler, AZ

Re: B20/VTEC at 4psi... for now? (FUCATYPR)

Its funny when people get stuck on one way of thinking

Jan 17, 2003 | 12:32 AM

#16

DC2NV

Joined: Sep 2002

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From: San Francisco, CA

Re: B20/VTEC at 4psi... for now? (FUCATYPR)

Quote:

How long has it been together??? Doesn't matter, it won't be much longer.

actually, this is my friends car and it has been running for atleast 2 years...and still running strong...

Jan 17, 2003 | 12:45 AM

#17

ATYPR

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From: NC

Re: B20/VTEC at 4psi... for now? (DC2NV)

Jan 17, 2003 | 07:22 AM

#18

VTC_CiViC

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Joined: Aug 2001

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From: Naples, Fl, USA

Re: B20/VTEC at 4psi... for now? (FUCATYPR)

Quote:

With the pleathora of guys who've run WELL over 10psi on B16/18, hell even D16's.. why are you so certain the B20 can't hold it? Sounds to me like YOU had a bad experience with one and it scared you or something. It's all in the tune, if Karl can push as much as he did on a stock B18, I'm sure 10+psi is fine for a B20...tuned!

Jan 17, 2003 | 12:06 PM

#19

ATYPR

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From: NC

Re: B20/VTEC at 4psi... for now? (VTC_boost-less_CiViC)

Quote:

A few thing then. Why would you have to run WELL OVER 12 psi to run 11's on a B20/VTEC??? Is he running stock sleeves???? If he is, how many other people have been so lucky???

Don't tell this guy it's O.K. to go more than 10psi on stock b20 sleeves. If he cracks his sleeves are any of you guys going to help him pay for the repair????

With the pleathora of guys who've run WELL over 10psi on B16/18, hell even D16's.. why are you so certain the B20 can't hold it? Sounds to me like YOU had a bad experience with one and it scared you or something. It's all in the tune, if Karl can push as much as he did on a stock B18, I'm sure 10+psi is fine for a B20...tuned!

We have a b16a running 14psi daily with pistons. B20 sleeves are thinner.

Jan 17, 2003 | 09:36 PM

#20

accordking

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From: Newark, Ca, US of A

Re: B20/VTEC at 4psi... for now? (FUCATYPR)

Quote:

Let me clarify something real quick. What I should of have added to my reply was that going a little higher in boost wouldn't hurt(from 4 psi) and going well over 12 psi was just an extreme example.
Also, I should have added that hybridsol is running a number of things that my friend in the picture above not running like, Hondata, thicker headgasket etc.

FUCATYPR, you are correct about the thinner walls on a B20. But proper tuning and maybe a more reasonable amount of boost, let's say 8-10, hybridsol's set up would be ok. Granted, that the B20 r/s ratio isn't the greatest, high revs would also have to be monitored as well.

[Modified by accordking, 10:37 PM 1/17/2003]

Jan 18, 2003 | 12:39 AM

#21

DC2NV

Joined: Sep 2002

Posts: 79

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From: San Francisco, CA

Re: B20/VTEC at 4psi... for now? (accordking)

the del sol is running a basic CRVTEC, B20B and b16 head, no pistons, no sleeves, no management (like hondate, f.a.s.t, etc)...and a drag 2 kit...

look at the hypersport crew...i know atleast one of them was just running stock sleeves...(cause the cheap...haha..j/p) they know how to tune it...

and sorry i can't afford to help ppl pay for their motor repair's, sheit...i can barely pay for gas at this point...haha

peace

Jan 19, 2003 | 12:21 PM

#22

spooled b16

Joined: Nov 2002

Posts: 153

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From: marysville, wa, usa

Re: B20/VTEC at 4psi... for now? (hybridsol)

Quote:

The wg is limiting the boost not the bov and the noise at full throttle is the wg opening to dump excess exaust pressure

Jan 19, 2003 | 07:51 PM

#23

hybridsol

Thread Starter

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Joined: Mar 2002

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From: V8 Land, State of, USA

Re: B20/VTEC at 4psi... for now? (spooled b16)

Quote:

The wg is limiting the boost not the bov and the noise at full throttle is the wg opening to dump excess exaust pressure

Thanks for the replies, again. I know this is a touchy subject on this board, and I know I'll be pushing the limit....

I don't agree with the above post, the boost gauge reads 5psi, then the BOV opens.. it's very distinct. Besides, why would the waste gate limit boost to 5 psi with a 9# spring?

Anyway, I'll be tuning it alot more in the coming days, I'll post updated as I go, not too many, and I'll include pics too.

BTW I'm running the stock MAP w/hondata so I really can't go above 11 psi anyway.

Thanks again,
Sean