Honda and Acura Model Specific Forums

JDMCRX · 10-31-2009, 05:00 PM

Curious guys im looking at getting a 99 3.0CL and i would like some more power. I was looking at headers and there are tons of them on ebay.

I was looking at a set of OBX or megan.

How was the fit and what difference did you notice.

Thanks

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YeuEmMaiMai · 10-31-2009, 06:50 PM

DC sports
Comptech
Mungen

Plenty of choices but if you think you are goinh to notice them in day to day driving, good luck as power gain is pretty much from v-tec engagement on up (about 25hp added tp the peak.

problem with the original J30a1/2 has to do with small valves and using 3 state stage v-tec system with pretty much the middle section removed.

see the torque and how low it is untill engagement +500rpm? adding headers isn't going to help that......also explains the weak ass performance until you get to about 40+ when the car really starts to haul ass. 2003+ accords do not have this problem and neithe do the TL/CL incl type S motors even though they only use a 2 stage system like the J30a. They have much larger valves........ and unlike the j30a1/2 their first stage does not keep the second intake valve open just enough to prevent swirling. You get in a newer accord and punch it the power delivery is smooth and strong right off of idle

JDMCRX · 11-01-2009, 01:48 PM

Yeah i noticed the newer accords had a bit better pull. This explains it well.

Im getting a 1999 3.0CL for a good deal and would not mind some extra power. I was looking at doing a Intake maybe a TB and port the top part of the intake manifold out set of megan headers and 2.5" mid pipe and maybe some quiet muffler.

JDMCRX · 11-07-2009, 10:30 AM

bump

Jim Truett · 11-07-2009, 11:23 AM

If you go with a set of cheaper Chinese headers be prepared to port match them to the head. Most come with simple round holes in the flanges that are smaller than the exhaust ports. You might also have to lengthen an Accord header to mate up to the 3.0 exhaust. I had to add 2" to mine....

JDMCRX · 11-07-2009, 03:41 PM

AH ok thats not a problem. I just wanted to make sure that they would bolt on the motor fine. Porting and lengthing the down pipe is not a problem.

What brands did you guys use?

10-31-2009, 06:50 PM	#2
YeuEmMaiMai i got a chuckle for christmas! Join Date: Jun 2002 Location: Bouncing off of the city bus in Saigon Posts: 10,624	Re: V6 Headers. Who has them on there 98-02 accords or 3.0CL DC sports Comptech Mungen Plenty of choices but if you think you are goinh to notice them in day to day driving, good luck as power gain is pretty much from v-tec engagement on up (about 25hp added tp the peak. problem with the original J30a1/2 has to do with small valves and using 3 state stage v-tec system with pretty much the middle section removed. see the torque and how low it is untill engagement +500rpm? adding headers isn't going to help that......also explains the weak ass performance until you get to about 40+ when the car really starts to haul ass. 2003+ accords do not have this problem and neithe do the TL/CL incl type S motors even though they only use a 2 stage system like the J30a. They have much larger valves........ and unlike the j30a1/2 their first stage does not keep the second intake valve open just enough to prevent swirling. You get in a newer accord and punch it the power delivery is smooth and strong right off of idle __________________ HT common sense krew member #2...The plane WILL FLY club member #3...Jesus is Salvation...Whatever you can think of that is utterly nasty, I can find something that is way worse....and that is true on the Internet

11-01-2009, 01:48 PM	#3
JDMCRX Member Join Date: Oct 2001 Location: PETAWAWA,OTTAWA,GAGETOWN,TRENTON Ont, Canada Posts: 5,332	Re: V6 Headers. Who has them on there 98-02 accords or 3.0CL Yeah i noticed the newer accords had a bit better pull. This explains it well. Im getting a 1999 3.0CL for a good deal and would not mind some extra power. I was looking at doing a Intake maybe a TB and port the top part of the intake manifold out set of megan headers and 2.5" mid pipe and maybe some quiet muffler. __________________ 1999 Acura 1.6EL turbo D16Y8 300whp 2002 Suzuki Grand Vitara with H27 1995 Honda Civic SI Build thred http://honda-tech.com/showthread.php?t=23987711994 Honda Accord Wagon Build thread http://honda-tech.com/showthread.php...9#post36883659

11-07-2009, 10:30 AM	#4
JDMCRX Member Join Date: Oct 2001 Location: PETAWAWA,OTTAWA,GAGETOWN,TRENTON Ont, Canada Posts: 5,332	Re: V6 Headers. Who has them on there 98-02 accords or 3.0CL bump __________________ 1999 Acura 1.6EL turbo D16Y8 300whp 2002 Suzuki Grand Vitara with H27 1995 Honda Civic SI Build thred http://honda-tech.com/showthread.php?t=23987711994 Honda Accord Wagon Build thread http://honda-tech.com/showthread.php...9#post36883659

11-07-2009, 11:23 AM	#5
Jim Truett Member Join Date: Nov 2003 Location: 92127 Posts: 2,274	Re: V6 Headers. Who has them on there 98-02 accords or 3.0CL If you go with a set of cheaper Chinese headers be prepared to port match them to the head. Most come with simple round holes in the flanges that are smaller than the exhaust ports. You might also have to lengthen an Accord header to mate up to the 3.0 exhaust. I had to add 2" to mine.... __________________ Never start an argument with an idiot. They will drag you down to their level, then beat you with experience.

11-07-2009, 03:41 PM	#6
JDMCRX Member Join Date: Oct 2001 Location: PETAWAWA,OTTAWA,GAGETOWN,TRENTON Ont, Canada Posts: 5,332	Re: V6 Headers. Who has them on there 98-02 accords or 3.0CL AH ok thats not a problem. I just wanted to make sure that they would bolt on the motor fine. Porting and lengthing the down pipe is not a problem. What brands did you guys use? __________________ 1999 Acura 1.6EL turbo D16Y8 300whp 2002 Suzuki Grand Vitara with H27 1995 Honda Civic SI Build thred http://honda-tech.com/showthread.php?t=23987711994 Honda Accord Wagon Build thread http://honda-tech.com/showthread.php...9#post36883659

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