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Draftinwitjr3815 · 07-07-2009, 04:57 PM

I'm building a circle track car. The class rules are SOHC and stock.... looking....

Its a 90 Civic DX with a D15B2 5spd.

I've already chosen to switch to a 5spd SI trans from a 90 CRX SI.

What I want to know now is how can make this thing get more power!!!

I have access to an D16A6 head/cam and am wondering if that will bolt up and make any more power?

Any other suggestions on getting more power out of this motor?

Thanks in advanced!

jlicrx · 07-07-2009, 05:04 PM

the D15B2 and D16A6 heads themselves are the same - only the camshafts are different - is the engine still DPFI? can you convert it to MPFI under the rules? that would give you a little more power, but not much

Draftinwitjr3815 · 07-07-2009, 05:35 PM

Is the A6 camshaft going to give me any advantage then? I could convert it to MPFI, but I'm having trouble locating the parts and wiring harness to do so.

Draftinwitjr3815 · 07-08-2009, 12:04 AM

Ok I've found a MPFI intake manifold. I still need a wiring harness then?

Bobby17772 · 07-08-2009, 02:49 PM

If it were you I would buy one off of rywire.com. from what I've herd they are the best

07-07-2009, 04:57 PM	#1
Draftinwitjr3815 Junior Member Join Date: Jul 2009 Age: 20 Posts: 24 iTrader: 0 / 0% Rep Power: 1	D15B2 Build/Help I'm building a circle track car. The class rules are SOHC and stock.... looking.... Its a 90 Civic DX with a D15B2 5spd. I've already chosen to switch to a 5spd SI trans from a 90 CRX SI. What I want to know now is how can make this thing get more power!!! I have access to an D16A6 head/cam and am wondering if that will bolt up and make any more power? Any other suggestions on getting more power out of this motor? Thanks in advanced!

07-07-2009, 05:04 PM	#2
jlicrx Senior Member Join Date: Jun 2003 Location: Colorado Springs Posts: 1,570 iTrader: 0 / 0% Rep Power: 64	the D15B2 and D16A6 heads themselves are the same - only the camshafts are different - is the engine still DPFI? can you convert it to MPFI under the rules? that would give you a little more power, but not much __________________ ZCspeed Racing

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07-07-2009, 05:35 PM	#3
Draftinwitjr3815 Junior Member Join Date: Jul 2009 Age: 20 Posts: 24 iTrader: 0 / 0% Rep Power: 1	Is the A6 camshaft going to give me any advantage then? I could convert it to MPFI, but I'm having trouble locating the parts and wiring harness to do so.

07-08-2009, 12:04 AM	#4
Draftinwitjr3815 Junior Member Join Date: Jul 2009 Age: 20 Posts: 24 iTrader: 0 / 0% Rep Power: 1	Ok I've found a MPFI intake manifold. I still need a wiring harness then?

07-08-2009, 02:49 PM	#5
Bobby17772 Senior Member Join Date: Jun 2009 Location: Enfield, CT Age: 19 Posts: 375 iTrader: 0 / 0% Ride: 1991 civic hatch dx Rep Power: 5	If it were you I would buy one off of rywire.com. from what I've herd they are the best

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