Anybody else have this kit? I have a problem with loping at idle dont know if its the fuel injection kit or my straight pipes(no backpressure which means a bad o2 reading).

Or if you have any other problems.

Also the Mallory distributor they make for the kit

 

What does this mean?

What cam? (specs or part # only, please; not "mild", "RV", "¾ race", etc.)

The O2 sensor does not care about "back pressure".I'm completely problem-free, myself.

 

I have this kit as well. I was able to stabalize the idle by turning off the idle control and adjust the idle screw a little higher. Around 1000RPM. However it smells like it is dumping alot of fuel. Also when the engine has been run hard for awhile I also get the loping idle. I am running a comp cam 104124 Hyd. Roller Special 210-216, Edelbrock Alum Heads and Flow Tech headers.
I would like to go back to the TPI but I don't know everything that is involved. Also if anyone has any idea about tuning for fuel economy and racing any input would be welcome.

 

Well loping means it sounds like it has a big cam but i only have the edelbrock cam 234/244 duration, .488"/.510"lift, part # in Summit EDL-7102
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Yeah i did that and it does that to but only after the straight pipes went in. You think the O2 sensor got damaged

 

Oh man, sorry to hear that.... I wish the word would get out and people would quit reaming themselves like that....

That's one of the WORST cams there is. It's a relic from the Stone Age, from back when they made cams from granite using a hammer and chisel. ANY modern cam with similar lift and .050" duration specs will both outrun it, and will cause less of the "big cam" behavior. Basically, that ancient POS gives you the worst of all possible worlds.

Then on top of that, you got tricked into paying extra for it besides. You could have bought it like this

http://store.summitracing.com/partde...art=SUM%2D1107

instead of like this

http://store.summitracing.com/partde...art=EDL%2D7102

And got the IDENTICAL SAME POS. But look at the difference in the price tag.

Oh well, it's too late now for you, but you can help rescue others from that mistake in the future, by passing along your dissatisfaction with it.

No I don't think the O2 sensor got damaged.

Take that POS cam out and put back in a Comp XE268 or 274, or the Lunati Voodoo that's 227°/233° @ .050", I forget the part #. Any of those cams will make WAY MORE power, and cure the "big cam disease" as well.

 

60103, it's very similar to the xe268, but a hair more aggressive. I concur, either one will make you sh** your pants. (in a good way).

 

Whats the vac like at idle? any logs?

-- Joe

 

I'll have to check on that. Whats this logs you speak of

 

Give it as much initial timing as it can stand. That cam is going to lope even in a 406.

 

Well it stops when i turn off the closed loop setting. But will start up again when its turned back on

 

My car wont run in closed loop. Cam has too much overlap. I've tinkered with the 02 constants as Tim (traxion) has suggested, but it never helped.

There is nothing wrong with open loop. carbs were open loop.

-- Joe

 

Except for gas mileage. BUt i guess thats all right i didnt build my car for a gas saver