engine and drivetrain 292 cam HELP PLEASE !!!!!

[jamesnutter50]

If i run twin carbs on a standerd engine what cam would you use?

I was thinking of using a 292 cam. what are the advantage and disadvantages to the 292 cam.

Is this the best Cam for the job?

Regards James

[Brandon]

I'd use the 292 with your set up....It works well with the side drafts. 304 is too radical for street use...you would need to keep the RPMs up in order to have it run smooth and gas milage would plummet...284 is close to stock, which is what I assume you want to get away from if you want to add a cam.

[Guest]

304 is too radical for street use...you would need to keep the RPMs up in order to have it run smooth and gas milage would plummet

That's not completely true. I use a 304 on a street motor (with s14 crank) and there is enough torque. Maybe not with standard crank.

But, the answer to your question is: what are you using the motor for and how much do you want to spend? If you are using it on the street and a don't need to live at the red line and are going to use the standard crank, go with the 292. If you want a high-revving motor and will pay for custom pistons and maybe an s14 crank and low end torque is not your highest priority, go with the 304.

[Guest Anonymous]

Baron runs a Norris 300 and dual 40's sweet

header big exhaust go with the 304

stock exhaust 292

[peteinjp]

you should be aware that running a cam (say a 292) will lower the compression due to the longer duration. It is often advised that the 9.5/1 pistons are considered the minimum (marginal.)

[jamesnutter50]

Would I loose the low down torque? How does it generally affect the performance?

Regards James

[winstontj]

If i run twin carbs on a standerd engine what cam would you use?

I was thinking of using a 292 cam. what are the advantage and disadvantages to the 292 cam.

Is this the best Cam for the job?

Regards James

Everyone else is spot on. Things need to balance out, compression ratio (CR), cam, timing, fuel....

292 is a good cam for a street motor but your question is subjective. What pistons will you use? Or regardless of pistons what displacement and CR will you have? What about exhaust, head work? What carbs? I assume 40 DCOE webers but you knwo what happens when you assume.

If you have 9.5:1 CR a 292 is very complimentary. You can pick up a used header for ~$100 and have a good setup. then again a 304 is totally streetable - if you balance things out with CR, tuning, etc. Do you care about fuel milage?

When I bought my DD it had a 292 with a 32/36, stock exhaust, manifolds, etc. I have no idea what pistons are in the motor but will know this weekend. I have a feeling that the head was rebuilt and the 292 was added alone. The car ran fine but didn't run anything like my current motor that is stock and tuned well. If you choose the 292 and dual 40 DCOE carbs spend the $500 on dyno tuning and do it right- that will make it all worth it.

[jamesnutter50]

It is running on stock pistons. Also I will be using twin weber 40dcoe.

I was going to at the same time gas flow the head. What else do you recommend?

Regards James

[winstontj]

It is running on stock pistons. Also I will be using twin weber 40dcoe.

I was going to at the same time gas flow the head. What else do you recommend?

Regards James

Without going crazy you could do pistons. Do you know what pistons are in the motor now? if you upgrade to 9.5:1 pistons it will pair better with the 292 but it's not manditory. If you port the head, run a header and the 40's with 292 you will be happy. that is a nice combo.

[Tommy]

If you're not raising compressions I would not recommend more than 292. Otherwise 304 would be totally streetable but since cam degrees actually lower your dynamic CR it does not work so well. With 292 you can't go wrong. It gives great torque and it's considered overall best street cam. 284 doesn't make that much difference compared to stock. I think your choice is clear.

You should not waste your money on flowbench work for the head before high CR pistons. I often wonder why head porting is so popular in US. m10 head is very good as it is. As an example I have about 200 hp's in my race engine without any flow work.

Tommy

[jamesnutter50]

What pistons would you use? The cylinder head is an e12. Also how difficult is it to change the pistons?

I would like to make my engine better than stock but without huge expense so I thought twin webers, gas flowing the head, and a 292 cam would do the trick.

I would really appreciate you view and what you think would be the best course of action.

Regards James

[Tommy]

In my opinion the best pistons would be the tii piano tops that match the e12 head. I don't remember the compression ratios off hand. There was a piston guide in faq but I couldn't find it anymore.

I'd try to find a good used set of oversize pistons and bore the block for them. I think you have quite good availability for that kind of parts over there. Of course it's more money and work. Really I don't know what flowwork costs there but here it would not be worth the money for a street engine.