E303

94snake · 01-20-2004, 11:06 AM

i have a cobra 5.0 and i put an E303 cam in it. i was wondering how much should i advance the timing? thanx.

01-20-2004, 12:13 PM

What other mods do you have done to your car? What gears are in the rear? I'd try somewhere between 13-15 degrees btdc. Just play around with it until it feels like it's running the best.

Dark_5.0 · 01-20-2004, 01:01 PM

I agree with the above statement. I run 16 degrees of initial timing with my E-303 cam.

HiFlow5 0 · 01-20-2004, 02:23 PM

Got mine set at 16* too. You may notice with the E-cam that you will have to raise the idle slightly. I have to keep idle between 850 and 900 rpms to keep from surging.

94snake · 01-21-2004, 10:14 AM

ive got the E303 cam,under drive pulleys,RPM 2 intake,70 mm throttle body,roller timing chain, 4.10 rear end, full exhaust,1.7 crane RR's. I think the timing is about 10-11 degrees..... any recommendations.? which the timing should be at. I only run 93 octane.??????????? thanx

Dark_5.0 · 01-21-2004, 10:23 AM

I would put it at 15 dgrees if it were mine.

94snake · 01-21-2004, 11:07 AM

alright thanx ill try settin the timing at 15 degrees

420nitro · 01-21-2004, 10:19 PM

I always heard that the stock balancer were not that accurate.(if you even are running a stock balancer)
I would just start at a conservative numer like 12 btc and keep advancing it till you hear a slight ping. Then back it off 2-3 degrees. I have seen Mustangs run best at 11degrees btc and 22 degrees btc and everything in between with the e-cam.
** And yes the same combo with the same compression and the same fuel.**
My 2 cents.

Nixon1 · 01-22-2004, 01:53 AM

I'd recommend about 14-15 degrees. I have the E-303 and I run my car at around 12 on 93 just because mine doesn't like the extra timing. I don't really feel any noticeable power increase, and the car runs noticeably rougher. It won't even run 16 degrees without upping the fuel rail pressure to stop it from pinging badly.

01-20-2004, 11:06 AM	#1
94snake Registered Member Join Date: Nov 2002 Location: Panama City Fl. Posts: 152	E303 i have a cobra 5.0 and i put an E303 cam in it. i was wondering how much should i advance the timing? thanx.

01-20-2004, 12:13 PM	#2
Simi Stang Guest Posts: n/a	mods? What other mods do you have done to your car? What gears are in the rear? I'd try somewhere between 13-15 degrees btdc. Just play around with it until it feels like it's running the best. Last edited by Simi Stang; 01-21-2004 at 11:50 AM..

01-20-2004, 01:01 PM	#3
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	I agree with the above statement. I run 16 degrees of initial timing with my E-303 cam. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

01-20-2004, 02:23 PM	#4
HiFlow5 0 Registered Member Join Date: Mar 2000 Location: Springfield, Ma, usa Posts: 706	Got mine set at 16* too. You may notice with the E-cam that you will have to raise the idle slightly. I have to keep idle between 850 and 900 rpms to keep from surging. __________________ NewEngland Auto www.baystategearheads.com -91 Mustang Coupe, ex 4cyl (sold) -99 F150, 3" lift, 35" Procomps, Magnaflow exhaust

01-21-2004, 10:14 AM	#5
94snake Registered Member Join Date: Nov 2002 Location: Panama City Fl. Posts: 152	mods ive got the E303 cam,under drive pulleys,RPM 2 intake,70 mm throttle body,roller timing chain, 4.10 rear end, full exhaust,1.7 crane RR's. I think the timing is about 10-11 degrees..... any recommendations.? which the timing should be at. I only run 93 octane.??????????? thanx

01-21-2004, 10:23 AM	#6
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	I would put it at 15 dgrees if it were mine. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

01-21-2004, 11:07 AM	#7
94snake Registered Member Join Date: Nov 2002 Location: Panama City Fl. Posts: 152	timing alright thanx ill try settin the timing at 15 degrees

01-21-2004, 10:19 PM	#8
420nitro Registered Member Join Date: Nov 2003 Location: Rockford Posts: 596	I always heard that the stock balancer were not that accurate.(if you even are running a stock balancer) I would just start at a conservative numer like 12 btc and keep advancing it till you hear a slight ping. Then back it off 2-3 degrees. I have seen Mustangs run best at 11degrees btc and 22 degrees btc and everything in between with the e-cam. And yes the same combo with the same compression and the same fuel. My 2 cents.

01-22-2004, 01:53 AM	#9
Nixon1 Registered Member Join Date: Jan 2003 Location: Palm Bay, FL Posts: 432	I'd recommend about 14-15 degrees. I have the E-303 and I run my car at around 12 on 93 just because mine doesn't like the extra timing. I don't really feel any noticeable power increase, and the car runs noticeably rougher. It won't even run 16 degrees without upping the fuel rail pressure to stop it from pinging badly. __________________ '91 Mustang GT 5.0 AOD Daily Driver Current stats: NEW 302 short block, E-303 cam (@.050, 220/220, .498/.498, 110 degrees), 1.6 roller rockers, Performer RPM heads (aluminum, 1.9/1.6, 60cc chambers), Cobra intake, Granatelli 75mm MAF, Billet AFPR, Equal-Length Shorty Headers, Off-Road X Pipe, Flowmasters, 4.10 POSI 13.73 at 103.8, ~2.2 60'

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
50 HP Cam Swap? Replace E303 with Comp XE270	NO SLO PK	Windsor Power	2	07-01-2003 04:52 PM
Grr, this e303 cam is frustrating in my 95stang	chickendreamer	Windsor Power	5	04-10-2003 05:12 PM
e303 cam	drdo	Power Adders	8	03-19-2003 03:06 PM
E303	Cody2552	Windsor Power	3	12-15-2002 07:11 PM
E303 with this setup	stng87	Windsor Power	3	03-14-2001 08:26 PM