roller lifters with 2.8

[trotterlg]

That is so common with the hollow cam with pressed on lobes. When they fail at the last bearing every thing keeps running except the oil pump. Larry

[carbon]

Ouch... that cut someone's trip short.

[veekuusi]

One Chevrolet Lumina came to my property.
Looks very tired.
But hope the block is allright, rest of the car has seen better days.

[ForcedFirebird]

Curious to see what you come up with. You have to imagine if you are fuel droplets going down a water slide. It would not feel good to hit that square plenum when you get to the bottom.

Don't give him a big head... He's too short for that.

You're a funny guy, too bad looks aren't everything.

[Superdave]

Because you are the smartest guy in this forum ,when it comes to intakes and carbs, I must take your
advice seriously.

Don't give him a big head... He's too short for that.



I agree though, the TPI 350 guys have had great results with Siamesed runners. Any time you can get rid of turbulent spots in the intake tract and add runner volume will help. Plus you may run into fuel puddling issues with the 2x2 plenum.

[veekuusi]

You should merge the pipes together to one oval pipe. The center cylinders are going to fuel starve since the fuel is going to have to make a 90 degree turn immediately after the carb.

Because you are the smartest guy in this forum ,when it comes to intakes and carbs, I must take your
advice seriously.
But I was going to make the plenum out of a 2" x 2" square tube .
As I said earlier , my friend has had very good results with his Pontiac SD engine with a similar plenum,
both shape and size.

[Purple pit]

Could you add length by using velocity stacks or inlet tubing?

[ForcedFirebird]

[3400-95-Modified]

Agreed... the square tube isn't going to promote good flow of the fuel...

[ForcedFirebird]

You should merge the pipes together to one oval pipe. The center cylinders are going to fuel starve since the fuel is going to have to make a 90 degree turn immediately after the carb.

[veekuusi]

I agree. Might want to dig a little more into why the #2 cap is stretched.

That's why I asked about main web distortion with heads torqued on.

I think about that.
But meanwhile I had some progress with the intake.

[34blazer]

Funny thing is (not really funny) is that main cap problem did not happen because it ran out of oil, there is something else going on here for sure. Larry

I agree. Might want to dig a little more into why the #2 cap is stretched.

That's why I asked about main web distortion with heads torqued on.

[Purple pit]

Really I think that the extra stroke would help for pulling out of those tight corners that you run. The problem is that you would not gain RPM as fast, but the amount of weight gained is not that much though.

[veekuusi]

Did you account for gasket tolerances when making that new intake?

Yes, you are right.
There is no intake gasket yet , but I will put them on , when the work goes on.

[trotterlg]

Funny thing is (not really funny) is that main cap problem did not happen because it ran out of oil, there is something else going on here for sure. Larry