Advice on ZZ502 add-ons - Team Camaro Tech
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post #1 of 5 (permalink) Old Mar 15th, 09, 02:46 AM Thread Starter
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Advice on ZZ502 add-ons

Team, I am soon at the stage when I am going to drop my new ZZ502 crate motor into my 68 Coupe currently undergoing a ground up rebuild. I am going to need to buy the fuel system and headers very soon and it is here that I seek the advice for both. I have searched past posts, and I have found many answers to some of my questions, but I have a few more.....

Regarding the fuel system, what fuel pressure should I be going for? I was looking at a complete fuel system kit such as this http://store.summitracing.com/partde...5&autoview=sku which looks like it has everything I may need and according to the specs the pump is internally regulated @ 6.5psi so no need for a separate regulator.

As for the exhaust, there is so much information regarding which headers fit best, what makes more power, etc. My question relates more to fitting. As I am in Australia, I don't have the choice of off-the-shelf options as you guys. I was looking at either these http://store.summitracing.com/partde...5&autoview=sku or these http://store.summitracing.com/partde...5&autoview=sku. Is there any difference in power between full length and the shorty style? I chose these as they seem quite affordable, so I would welcome any other suggestions. I should add the car will be 98% a street cruiser. Sorry for the long post!
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post #2 of 5 (permalink) Old Mar 15th, 09, 07:02 AM
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Robert
 
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Re: Advice on ZZ502 add-ons

I have spent the last few months replacing my 396 with a ZZ502 in my 68 coupe. I searched every site I could find for info. As far as the electric pump goes you need to make sure the pump has a flooded suction as they do not suck fuel very well. I think you will need to add a sump to your existing tank. I have the same exact long tube headers on mine. I made sure that I had the rite frame and trans brace for the big block and I still had to put a dimple in one of the tubes for the power steering box and a dimple for the upper control arm on the passenger side. You will also need to grind the flanges a little bit to clear the head bolts. And last but not least they have terrible clearance at the #3 & #5 spark plugs.

There are no problems only solutions

68 Camaro, RS/SS, ZZ502, Retrotek Fuel Injection, 4 Speed.

2010 RS/2SS Black, 6 speed trans
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post #3 of 5 (permalink) Old Mar 15th, 09, 07:56 AM
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Re: Advice on ZZ502 add-ons

I personaly went with Magna fuel with a bypass at the tank and a regulator at the carb I think its better to have a higher pressure to the regulator for a more constant pressure.Do your research on the pump you buy as far as run time the first pump I got was a Holly 350 which was only good for a 15 minute run time and then it needs to be shut down to cool.I like the pump with a bypass so its not dead headed and it seams to be quieter.

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post #4 of 5 (permalink) Old Mar 15th, 09, 03:52 PM Thread Starter
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Re: Advice on ZZ502 add-ons

Thanks for the replies so far.

Since posting, I have found found this option for the fuel pump http://store.summitracing.com/partde...5&autoview=sku which seems like a great budget option. Does anyone have any experience with this kit? Also, is it critical I add a sump to my tank or can I get away without one?
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post #5 of 5 (permalink) Old Mar 15th, 09, 07:12 PM
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Robert
 
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Re: Advice on ZZ502 add-ons

I am no expert but I think you have to have a sump. electric pumps usally like a flooded suction line. I would post your fuel questions in the EFI forum as there are a lot of very smart guys larking there.

There are no problems only solutions

68 Camaro, RS/SS, ZZ502, Retrotek Fuel Injection, 4 Speed.

2010 RS/2SS Black, 6 speed trans
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