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#1 |
Registered Member
Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
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![]() 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 ![]()
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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 |
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#2 |
It's a lot like a race car
Join Date: Aug 2000
Location: Meridian, MS
Posts: 4,130
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![]() just ditch the E-cam in favor of a Ed Curtis grind
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1987 Buick T-type 1998 HD Electra Elide |
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#3 |
Registered Member
Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
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![]() 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
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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 |
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#4 |
Registered Member
Join Date: Jan 2001
Location: Moline Il
Posts: 901
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![]() 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
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88 coupe 91 LX NMRA Pure Street 5120 |
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#5 |
Registered Member
Join Date: Feb 2002
Location: Arlington, Washington
Posts: 92
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![]() 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.
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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, |
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#6 |
It's a lot like a race car
Join Date: Aug 2000
Location: Meridian, MS
Posts: 4,130
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![]() 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
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1987 Buick T-type 1998 HD Electra Elide |
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#7 |
Registered Member
Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
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![]() I just might do that.
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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 |
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#8 |
Registered Member
Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
|
![]() 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 ![]()
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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 |
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