Max possible boost from S/C ???

MestupS2K · 10-05-2007, 01:19 AM

Here soon I will be going boosted, and for now I am collecting information to make a decision to go either s/c or turbo.

The question for now is, what is the biggest (or smallest really) size pulley you can put on a s/c?

Anyone have any first hand experience with upgrading their own pulley?

What kind of power can higher boost pulleys accumulate?

Thanks

gomarlins3 · 10-05-2007, 10:47 AM

I went to a 7 lb pulley on my CT system. No problems that were not self inflicted. I have heard of people going to 9 lbs w/o having to change the head gasket. I think once you get above that, you need to change the head gasket and fuel injectors. Heck, you may need to change out the stock fuel injectors with a 9 lb. for all I know. I tried changing them to 550's with my 7 lb. pulley and got 15 more WHP, but the driveability suffered. I am back to the stock 360 injectors.

Vezna31 · 10-05-2007, 11:17 AM

Quote:

Originally Posted by gomarlins3

I went to a 7 lb pulley on my CT system. No problems that were not self inflicted. I have heard of people going to 9 lbs w/o having to change the head gasket. I think once you get above that, you need to change the head gasket and fuel injectors. Heck, you may need to change out the stock fuel injectors with a 9 lb. for all I know. I tried changing them to 550's with my 7 lb. pulley and got 15 more WHP, but the driveability suffered. I am back to the stock 360 injectors.

What do you mean by "the driveability suffered"?

gomarlins3 · 10-05-2007, 04:39 PM

The car would sputter when it was cold (within the first couple of miles) for a second or two and then be fine. I would also get a CEL about a rich fuel bank. I would reset the code after those first couple of miles and it wouldn't come back until the next day I tried to drive and the car wasn't completely warmed up yet. If I let it idle in the driveway until I had a full three bars, then the CEL wouldn't chow, but I still got the sputter.

frontline762 · 10-09-2007, 10:59 AM

gomarlins3 have you tried 450's?

gomarlins3 · 10-09-2007, 08:23 PM

No, I just decided to stay with the OEM ones.

Boosted S2k · 10-09-2007, 09:29 PM

I boosted my comptech kit to 13psi and made over 400hp.

Sideways · 12-12-2007, 06:42 AM

I pushed a Vortech to 17 psi and over 500 rwhp. The superchargers do have limits as do smaller turbos.

Snafu4286 · 12-12-2007, 08:31 AM

inline pro all the way... no so much a fan of the supercharger!

Jadranko · 12-12-2007, 08:28 PM

so u are saying if I bought a vortech sc or a greedy tc an run it with 13psi i would make 400 whp.

Jadranko · 12-12-2007, 08:31 PM

is that after you you put it in and set it up for 13 psi or do u have to change a lot of stuff beside putting the sc. What I am saying could u buy a vortech sc or turbocharger and make 400 hp without buyin anything else.

Sideways · 12-17-2007, 06:50 AM

Quote:

Originally Posted by Jadranko

is that after you you put it in and set it up for 13 psi or do u have to change a lot of stuff beside putting the sc. What I am saying could u buy a vortech sc or turbocharger and make 400 hp without buyin anything else.

The answer to your question is no.

It would require headwork, injectors and an EMS to see 400 rwhp.

s2ksuzuka · 01-30-2008, 03:32 AM

Go,
what are you using for fuel management. I have 550 with an AEM EMS and no problems. I hav heard of issues with 650's though

Jorsher · 02-26-2008, 03:25 PM

Quote:

Originally Posted by gomarlins3

I went to a 7 lb pulley on my CT system. No problems that were not self inflicted. I have heard of people going to 9 lbs w/o having to change the head gasket. I think once you get above that, you need to change the head gasket and fuel injectors. Heck, you may need to change out the stock fuel injectors with a 9 lb. for all I know. I tried changing them to 550's with my 7 lb. pulley and got 15 more WHP, but the driveability suffered. I am back to the stock 360 injectors.

Did you retune with the larger injectors? I don't have any s2k-specific turbo experience, but I know with any other Honda, when you throw in larger injectors, you have to retune for them. If it's set at 1ms for your 300cc injectors (example), then go up to 450cc injectors, you're still set for the 1ms and are actually injecting ~50% more fuel.

It's the reason your CEL was coming on (excess fuel), and why your engine took forever to heat up (excess fuel was cooling the chambers).

Turbo kit is the best bet if you don't mind doing your own work. If you don't, it's MUCH cheaper than an SC and has much more potential.

k20a · Today, 12:27 AM

Quote:

Originally Posted by Sideways

The answer to your question is no.

It would require headwork, injectors and an EMS to see 400 rwhp.

so whats the max boost I can get without replacing other parts. and about how much whp can I get from it?
__________________
fire it up Pulse Plugs

10-05-2007, 01:19 AM	#1 (permalink)
MestupS2K Junior Member Join Date: Oct 2007 Location: Cincinnati, OH Posts: 1	Max possible boost from S/C ??? Here soon I will be going boosted, and for now I am collecting information to make a decision to go either s/c or turbo. The question for now is, what is the biggest (or smallest really) size pulley you can put on a s/c? Anyone have any first hand experience with upgrading their own pulley? What kind of power can higher boost pulleys accumulate? Thanks __________________ ...Sean '00 GPW

10-05-2007, 10:47 AM	#2 (permalink)
gomarlins3 "Enjoy the drive" Join Date: Jul 2005 Location: Kuna Idaho Posts: 2,226	I went to a 7 lb pulley on my CT system. No problems that were not self inflicted. I have heard of people going to 9 lbs w/o having to change the head gasket. I think once you get above that, you need to change the head gasket and fuel injectors. Heck, you may need to change out the stock fuel injectors with a 9 lb. for all I know. I tried changing them to 550's with my 7 lb. pulley and got 15 more WHP, but the driveability suffered. I am back to the stock 360 injectors. __________________ Happiness is a nice road, great weather, and driving the S with Sue in the seat next to me. "Whatever you do, where ever you go, enjoy the drive." I know for a FACT that the last year of production of the S2000 is 2003!!!!! After that, it will be the S2200 under an assumed name.

10-05-2007, 04:39 PM	#4 (permalink)
gomarlins3 "Enjoy the drive" Join Date: Jul 2005 Location: Kuna Idaho Posts: 2,226	The car would sputter when it was cold (within the first couple of miles) for a second or two and then be fine. I would also get a CEL about a rich fuel bank. I would reset the code after those first couple of miles and it wouldn't come back until the next day I tried to drive and the car wasn't completely warmed up yet. If I let it idle in the driveway until I had a full three bars, then the CEL wouldn't chow, but I still got the sputter. __________________ Happiness is a nice road, great weather, and driving the S with Sue in the seat next to me. "Whatever you do, where ever you go, enjoy the drive." I know for a FACT that the last year of production of the S2000 is 2003!!!!! After that, it will be the S2200 under an assumed name.

10-09-2007, 10:59 AM	#5 (permalink)
frontline762 HondaOwnerSinceForEver Join Date: Sep 2007 Location: Currently in Columbus, GA Posts: 49	gomarlins3 have you tried 450's? __________________ _____________________________________ >>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<

10-09-2007, 08:23 PM	#6 (permalink)
gomarlins3 "Enjoy the drive" Join Date: Jul 2005 Location: Kuna Idaho Posts: 2,226	No, I just decided to stay with the OEM ones. __________________ Happiness is a nice road, great weather, and driving the S with Sue in the seat next to me. "Whatever you do, where ever you go, enjoy the drive." I know for a FACT that the last year of production of the S2000 is 2003!!!!! After that, it will be the S2200 under an assumed name.

10-09-2007, 09:29 PM	#7 (permalink)
Boosted S2k Junior Member Join Date: Oct 2007 Posts: 15	I boosted my comptech kit to 13psi and made over 400hp.

12-12-2007, 06:42 AM	#8 (permalink)
Sideways Fastest S2000 in the West Join Date: Dec 2007 Posts: 22	I pushed a Vortech to 17 psi and over 500 rwhp. The superchargers do have limits as do smaller turbos. __________________ Sideways http://www.streetfire.net/video/0f5a...3e00a75a68.htm 242 rwhp/liter

12-12-2007, 08:31 AM	#9 (permalink)
Snafu4286 Member Join Date: Feb 2007 Posts: 32	inline pro all the way... no so much a fan of the supercharger!

12-12-2007, 08:28 PM	#10 (permalink)
Jadranko honda man Join Date: Dec 2007 Posts: 56	so u are saying if I bought a vortech sc or a greedy tc an run it with 13psi i would make 400 whp.

12-12-2007, 08:31 PM	#11 (permalink)
Jadranko honda man Join Date: Dec 2007 Posts: 56	is that after you you put it in and set it up for 13 psi or do u have to change a lot of stuff beside putting the sc. What I am saying could u buy a vortech sc or turbocharger and make 400 hp without buyin anything else.

01-30-2008, 03:32 AM	#13 (permalink)
s2ksuzuka Junior Member Join Date: Jan 2008 Posts: 28	Go, what are you using for fuel management. I have 550 with an AEM EMS and no problems. I hav heard of issues with 650's though

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