Cam upgrade

Skankin · 01-02-2001, 12:22 PM

With your 1.7 rockers, that'll be like 226 duration & .500" lift, with only 112 lsa. You'll trade off a lot of low end, and emissions will be bad.

I'd get something made for the 1.7 rockers.

The crane 2031 cobra cam was designed for this application (214/220, 112lsa, .513/.529), and you can get the kit with springs for $205.

If you want something a little more aggressive, there's a comp cam extreme grind that would be great... but it'll cost a little more.

When you take the front off, you'll probably be surprised at how loose the timing chain is... for $30, a new one is essentially manditory.

The lifters might be alright, but it'd really suck if it started tapping on startup.

------------------
'89.5 5L LX, hatch, Medium Canyon Red, 155K Km (No winters), 5sp, 3.08, GT interior, a/c, Alpine CD, K/N, Crane PS91, Walbro 190 LPH, March Pulleys, Mr. Gasket 180 therm (HP balanced), 3 core rad, MarkVIII fan, Variflow controller, Polygraphite front bushings, FMS-5300B springs, 6 KYB's, 73mm Calipers, Maximum Motorsport 4pt chassis brace, Western Motorsport Racing's Sub-frame connectors. Re-ringed bottom end, conv. motor mounts, melling oil pump, FMS-C50 waterpump, GT40P heads (blended, polli

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01-02-2001, 12:22 PM	#3
Skankin Registered Member Join Date: Dec 1998 Location: London, Ontario, Canada Posts: 1,349	With your 1.7 rockers, that'll be like 226 duration & .500" lift, with only 112 lsa. You'll trade off a lot of low end, and emissions will be bad. I'd get something made for the 1.7 rockers. The crane 2031 cobra cam was designed for this application (214/220, 112lsa, .513/.529), and you can get the kit with springs for $205. If you want something a little more aggressive, there's a comp cam extreme grind that would be great... but it'll cost a little more. When you take the front off, you'll probably be surprised at how loose the timing chain is... for $30, a new one is essentially manditory. The lifters might be alright, but it'd really suck if it started tapping on startup. ------------------ '89.5 5L LX, hatch, Medium Canyon Red, 155K Km (No winters), 5sp, 3.08, GT interior, a/c, Alpine CD, K/N, Crane PS91, Walbro 190 LPH, March Pulleys, Mr. Gasket 180 therm (HP balanced), 3 core rad, MarkVIII fan, Variflow controller, Polygraphite front bushings, FMS-5300B springs, 6 KYB's, 73mm Calipers, Maximum Motorsport 4pt chassis brace, Western Motorsport Racing's Sub-frame connectors. Re-ringed bottom end, conv. motor mounts, melling oil pump, FMS-C50 waterpump, GT40P heads (blended, polli