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Fire order 4x7 swap

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Old Sep 24, 2006 | 08:21 PM
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Wilks
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Default Fire order 4x7 swap

Recently on Power Block TV they changed the firing order on a Chevy engine (Swapped cams to change cylinders 4 and 7 in the order) any idea if there is an application for Dodge 5.2?
 
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Old Sep 24, 2006 | 09:44 PM
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Default RE: Fire order 4x7 swap

.....why would you want to? [&:]
 
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Old Sep 25, 2006 | 01:13 AM
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Default RE: Fire order 4x7 swap

They gained 30hp on the Dyno
 
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Old Sep 26, 2006 | 06:38 PM
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Default RE: Fire order 4x7 swap

They gained that 30 horse from putting a cam in They didn't gain it from swapping the firing order. And besides, that's a chevy motor. Different breed of animal [8D]

You can gain up to 45 with the Mopar Performance cam and the right intake mods
 
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Old Sep 28, 2006 | 05:44 PM
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Default RE: Fire order 4x7 swap

Right, the new cam changed the firing order of # 4 and 7 cylinders. Maybe it's just a Chev thing. What kind of cam and intake mods would you recommend? Right now I have Stage II Jet chip, 180 thermo, K&N filter, 3†exhaust w/ Magna Flow muffler, high flow cat, Accel coil. On a 97 318 w/ 90k miles
 
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Old Sep 28, 2006 | 06:23 PM
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Default RE: Fire order 4x7 swap

Dump the jet chip - http://www.rm-indy.com/Jet_Sucks.htm

I would suggest a mopar M1 intake manifold, a throttle body from www.thefastman.com, and a K&N FIPK.

As for a camshaft, I recommend this one: http://store.summitracing.com/partde...+0&appfilter=1 It's EXACTLY the same as the Mopar Performance camshaft that's no longer in production. It's a very good cam.

I would also suggest a set of Gibson headers and/or possibly going down in exhaust size a little. 3" is borderline on being too large for the 318. You actually see some loss in torque by running it.
 
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Old Sep 28, 2006 | 09:34 PM
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Thanks for the tips. I’ll have to look into some of those parts. Yeah with the jet chip I’ve never really been able to check if it really worked. I did a few mods at the same time.
 
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