? about comptech SC pulleys and tuning

zephyre · 03-10-2008, 11:45 PM

I was just wondering if there were diff sized pulleys for the CT supercharger. i know the stock pulley is only rated for 5 psi but i want more boost. I was also wondering besides the Hondata reflash, what would be the best engine management to tune for boost ? thanx

daicacharco · 03-11-2008, 12:29 AM

The settings on the ECU for your comptech is the only Hondata reflash thats available. With the Comptech SC Kit, you already have the reflash. The only way you'll be tuning your car is w/ Hondata K-Pro but there are side affects if using them.

chuson · 03-11-2008, 02:18 PM

Quote:

Originally Posted by zephyre

I was just wondering if there were diff sized pulleys for the CT supercharger. i know the stock pulley is only rated for 5 psi but i want more boost. I was also wondering besides the Hondata reflash, what would be the best engine management to tune for boost ? thanx

Search the thread started by BigBen, he has tried to use a different pulleys (3.2) to up the boost but there's alot of things also involved like fuel injector and such.

zephyre · 03-12-2008, 09:28 AM

yea i know that with more boost an upgrade to the fuel system is also needed but i was just wondering if maybe greddy V-manage or HKS tuning could be used because when i go SC'd im probably not going to want to stay at 5 psi for long.

jrhonda · 03-12-2008, 04:20 PM

Im not going to do this but i just want to understand why, but what would happen if I put a Comptech Supercharger Kit for a 2006 A/T on a 2007 A/T. Is the reflash a real necessity?? What would happen if someone didn't upgrade the ECU?? The 2006 CT SC will fit the 2007 TSX so what is the problem??

If we were to take the ECU away from the equation, mechanically the 06 SC kit would work on the 07 right??

BigBen · 03-12-2008, 04:25 PM

Search.... I am currently running a 3.0 pulley. If you do go with the High Boost pulley you will have alittle trouble in the cross over from vacumm to boost.

BigBen · 03-12-2008, 04:26 PM

Quote:

Originally Posted by jrhonda

Im not going to do this but i just want to understand why, but what would happen if I put a Comptech Supercharger Kit for a 2006 A/T on a 2007 A/T. Is the reflash a real necessity?? What would happen if someone didn't upgrade the ECU?? The 2006 CT SC will fit the 2007 TSX so what is the problem??

If we were to take the ECU away from the equation, mechanically the 06 SC kit would work on the 07 right??

That will not work..The reflash is what makes the SC work properly.If you didn't ungrade the ECU it won't work!

chuson · 03-12-2008, 04:51 PM

Quote:

Originally Posted by BigBen

Search.... I am currently running a 3.0 pulley. If you do go with the High Boost pulley you will have alittle trouble in the cross over from vacumm to boost.

I thought you went w/ 3.2 pulleys awhile ago? (Or is 3.2 stock and 3.0 is the newer one?)

Have you fixed up all the S/C issues now?

DAYTA · 03-12-2008, 05:04 PM

Quote:

Originally Posted by jrhonda

Im not going to do this but i just want to understand why, but what would happen if I put a Comptech Supercharger Kit for a 2006 A/T on a 2007 A/T. Is the reflash a real necessity?? What would happen if someone didn't upgrade the ECU?? The 2006 CT SC will fit the 2007 TSX so what is the problem??

If we were to take the ECU away from the equation, mechanically the 06 SC kit would work on the 07 right??

You can't do that because:

1) Without engine management, you would end up running extremely lean and your engine would blow up soon after. The reflash provides a lowered VTEC engagement point as well as increases cycle duty on your stock fuel injectors so that your A/F ratios stay nominal.

2) There is no 06 AT kit...only 06 MT

.

DAYTA · 03-12-2008, 05:06 PM

Quote:

Originally Posted by chuson

I thought you went w/ 3.2 pulleys awhile ago? (Or is 3.2 stock and 3.0 is the newer one?)

Have you fixed up all the S/C issues now?

IIRC, the stock S/C pulley diameter is 3.4". From what it looks like on our CT S/C kits, every .1" you take away from the pulley diameter adds about 1-2psi, which in turn adds about 5-6whp per added psi of boost. This probably would be more per psi if it wasn't a Roots blower, but the increased IAT limits your gains from additonal boost.

jrhonda · 03-12-2008, 05:08 PM

Quote:

Originally Posted by DAYTA

You can't do that because:

1) Without engine management, you would end up running extremely lean and your engine would blow up soon after. The reflash provides a lowered VTEC engagement point as well as increases cycle duty on your stock fuel injectors so that your A/F ratios stay nominal.

2) There is no 06 AT kit...only 06 MT

.

Alright I see, so the ECU pretty much programs things differently to compensate for the supercharger so that everything stays nominal. So why is it so hard for Hondata or whoever to come out with a reflash for the 07+?

For some reason, I thought I saw a 06 CT SC kit for an 06.

DAYTA · 03-12-2008, 05:27 PM

Quote:

Originally Posted by jrhonda

Alright I see, so the ECU pretty much programs things differently to compensate for the supercharger so that everything stays nominal. So why is it so hard for Hondata or whoever to come out with a reflash for the 07+?

For some reason, I thought I saw a 06 CT SC kit for an 06.

Well, there is also a piggyback ACM that prevents the ECU from seeing boost. Without the piggyback, we'd be throwing CELs constantly. Otherwise, yes, the ECU reflash handles the fuel remappings and lowered VTEC engagement point (among other things) for the S/C.

Every Honda ECU is different, and it takes time and money to crack each one. My guess is that there isn't a large enough demand to warrant coming up with any reflash.

But to be honest, I wouldn't get your hopes up. Look at the 05 AT guys...they've been waiting for years (much longer than you 07-08 guys), and a Hondata reflash of any kind is pretty much never going to happen for them.

Oh, and there is a 2006 CT S/C kit (I'm pretty sure the one you saw was mine - don't know of any others out there). However, there is only a S/C kit for the 2006s w/ manual transmissions, NOT automatic transmissions.

zephyre · 03-12-2008, 06:32 PM

ok so once again would greddy V-manage or any of the likes (HKS) work?...im just wondering because when i get the SC im also going to look into FI cams...preferably BC but im wondering what type of tuning i can use to get more gains from internals....

DAYTA · 03-12-2008, 07:18 PM

What year/transmission TSX do you have?

AcidLotus · 03-12-2008, 11:18 PM

Quote:

Originally Posted by BigBen

That will not work..The reflash is what makes the SC work properly.If you didn't ungrade the ECU it won't work!

Couldn't you theoretically go the way of the old JR kits and run a rising rate fuel regulator like the Cartech FMU? That will see boost and raise the fuel pressure. The MAP sensor, since it sits on the throttle body which is before the blower, shouldn't see any boost at all. You could then trick the ECU into seeing colder IAT temps than is actually there to raise the fuel pressure rate. You could probably even get away with 30-55cc larger fuel injectors without the ECU caring much. It's certainly not the most optimal setup as far as safety, but it could work. May need to make the fuel system a return type fuel system however, as I think it's not currently?