E-cam with 1.7 RR.

Dark_5.0 · 02-10-2005, 02:43 PM

I have done everything I can do to my 302. All I can think to do is go to some 1.7 RR and maybe a comp polymers upper intake and a 70mm TB in an effort to get more top end.

Has anyone gone from 1.6-1.7 roller rockers with an E cam and if so was it worth it?

Right now my upper intake is a stock cobra with a 65mm TB and my lower is stage 3 ported.

Maybe I can squeeze some more HP out of this engine before I do my stroker set-up

tireburner163 · 02-10-2005, 04:38 PM

just ditch the E-cam in favor of a Ed Curtis grind

Dark_5.0 · 02-10-2005, 04:49 PM

Another cam is not an option. I will put a custom grind in my 331 when I build it but the 302 is stuck with the E-cam

andy669 · 02-10-2005, 09:35 PM

Most of the stuff I mess with wouldnt respond to another 30 thou of lift. Have you checked your actual lift with a blocked up lifter? There can be a substantial amount of power left in valvetrain geometry. Especially with stud mount rockers.

With everything else being equal, I'd be surprised if another .030 what worth 5 hp, in your situation. The first thing I would do is optimize the pushrod length and bump the spring pressure up.

Andy

Dog5ohfun · 02-11-2005, 01:38 AM

I ran my car for about 3 years with the E303 and 1.7 roller rockers it was enjoyable but not optimal. The E cam, I didn't feel was enough for ported heads, but was great when the car still had stock heads and the factory 1.6 rockers. If you are already planning a different engine then use the E cam.

tireburner163 · 02-11-2005, 01:48 AM

If you don't want to do a custom cam, what about a TFS stage 2? They're only like $149, and it would be a much better cam for a h/c/i car

Dark_5.0 · 02-11-2005, 09:51 AM

I just might do that.

I hate changing cams, but right now I have the entire front clip off so it would be pretty easy.

Dark_5.0 · 02-11-2005, 02:15 PM

I have decided to port my upper intake and install a 70mm TB and possibly a 100 shot

Should do more than a cam change

02-10-2005, 02:43 PM	#1
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	E-cam with 1.7 RR. I have done everything I can do to my 302. All I can think to do is go to some 1.7 RR and maybe a comp polymers upper intake and a 70mm TB in an effort to get more top end. Has anyone gone from 1.6-1.7 roller rockers with an E cam and if so was it worth it? Right now my upper intake is a stock cobra with a 65mm TB and my lower is stage 3 ported. Maybe I can squeeze some more HP out of this engine before I do my stroker set-up __________________ 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

02-10-2005, 04:38 PM	#2
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	Re: E-cam with 1.7 RR. just ditch the E-cam in favor of a Ed Curtis grind __________________ 1987 Buick T-type 1998 HD Electra Elide

02-10-2005, 04:49 PM	#3
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: E-cam with 1.7 RR. Another cam is not an option. I will put a custom grind in my 331 when I build it but the 302 is stuck with the E-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

02-10-2005, 09:35 PM	#4
andy669 Registered Member Join Date: Jan 2001 Location: Moline Il Posts: 901	Re: E-cam with 1.7 RR. Most of the stuff I mess with wouldnt respond to another 30 thou of lift. Have you checked your actual lift with a blocked up lifter? There can be a substantial amount of power left in valvetrain geometry. Especially with stud mount rockers. With everything else being equal, I'd be surprised if another .030 what worth 5 hp, in your situation. The first thing I would do is optimize the pushrod length and bump the spring pressure up. Andy __________________ 88 coupe 91 LX NMRA Pure Street 5120

02-11-2005, 01:38 AM	#5
Dog5ohfun Registered Member Join Date: Feb 2002 Location: Arlington, Washington Posts: 92	Re: E-cam with 1.7 RR. I ran my car for about 3 years with the E303 and 1.7 roller rockers it was enjoyable but not optimal. The E cam, I didn't feel was enough for ported heads, but was great when the car still had stock heads and the factory 1.6 rockers. If you are already planning a different engine then use the E cam. __________________ Black 1990 LX DSS Racing Super Pro Bullit 331, AFR 185, Anderson B31 Cam, 1.6 DSS rockers, Cobra Intake w/ 2 phenolic spacer, Aluminum DS, 3.73 gears, Tremec 3550, Lakewood SFI Bellhousing, MSD Digital 6+, Spintech Side Exhaust,

02-11-2005, 01:48 AM	#6
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	Re: E-cam with 1.7 RR. If you don't want to do a custom cam, what about a TFS stage 2? They're only like $149, and it would be a much better cam for a h/c/i car __________________ 1987 Buick T-type 1998 HD Electra Elide

02-11-2005, 09:51 AM	#7
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: E-cam with 1.7 RR. I just might do that. I hate changing cams, but right now I have the entire front clip off so it would be pretty easy. __________________ 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

02-11-2005, 02:15 PM	#8
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: E-cam with 1.7 RR. I have decided to port my upper intake and install a 70mm TB and possibly a 100 shot Should do more than a cam change __________________ 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