Hey guys I need your opinion. I am going to upgrade my stock tpi intake and runners with aftermarket parts. I'm going to keep the long tube runner set up. I like the tourque and I drive on the street 99% of the time so I don't need most of my power to come on in the upper rpm range.

I was going to get tpis big mouth intake and their runners. Then I heard that the arizona intake runners flow more air. Is this true?

 

AS&M runners are really nice pieces. Pricey, but they are very well made. I don't know too much about the TPIS runners, but the big mouth base seems to be pretty popular. I would check the port sizes and see how they match up to the AS&M runners. I know plenty of guys running the AS&M runners and they love them.

Will

 

What bases work well with the arizona intake runners?

 

Any aftermarket lower intake will fit the AS&M LTR's.

It wont mount on a FIRST, unless you contact someone

Edelbrock/Accel pieces are the common option, choices
are limited when it comes to TPI intakes.. hopefully BBK
will have another option for us TPI guys.

The AS&M's will bolt up to a stock intake as well..

Anybody know if the LTR's are still on a backorder?

 

Thanks for the info guys. I know the selection is limited. I like the long tube set up and the way it looks stock so that limts me to a few companies.

Do you guys have any idea why tpis's parts cost a lot more than other companies like accel or edlebrock? From what I have read the power gains from the intake and runners are about the same.

 

My guess would be because they are a smaller outfit, and are not as well known as accel or edelbrock, who can keep their prices SLIGHTLY lower because of volume. However, it seems that edelbrock is the manufacturer of accel's base now anyway. So regardless of what you chose, you are getting the same thing. The edelbrock runners are also basically the old accel runners with the addition of those fins and logos. I think Edelbrock bought the rights to accels superior setup, and now has the sole manufacturing rights. I could be wrong, but it makes sense.

The main difference between the AS&M runners and others like ed or slp is that they are aluminum tubes vs. ed/slp one piece cast aluminum. This makes them lighter, but more prone to damage much like the stock pieces would dent and ding. I personally think the AS&M runners are about as high quality as they come. The machine work looks excellent, which can't be said for other mass production companies.

I would get some as&m runners, and a superram base, port your plenum extensively to match the rest, and it should flow nicely, and extend the rpm range a little.

Will

 

TPIS long tube runners are the exact same casting as AS&M long tube runners, but with a higher price tag. AS&M semi-siamese runners would be the better choice, but they are severly hard to find and always on back order. Accel long tube runners would be my next choice.

Edelbrock is the only one still making aftermarket intake manifolds for the stock bolt pattern, and they are the least expensive. Edelbrock also makes the Vortec intake for the Chevy Vortec heads, but Scoggin Dickey sells it cheaper.

 

Thanks for the input guys. I've decided to go for some arizona intake runners and an edlebrock base. This should match up well with the rest of the plans for the motor that I have. Now that the intake is done I just need to pick a set of heads and a camshaft to match but that will be a while down the road. At least now the intake will be set up right.

 

I went with the Edelbrock base and SLP runners. Cost was a factor. and of course, performance. I ported the Edelbrock TPI manifold base at the transition from the CNC machining to the as-cast surface. I haven't been disapointed. as you may have gathered, porting of YOUR factory upper plenum is very rewarding, most importantly, the ridge right behind the TB.

 

I am using the AS&M runners with the TPIS intake. It's a very good combination.

Just a heads-up... when you order from AS&M, tell them whether you need the 9th injector port or not. Mine came with it by default and I had to send it back to them to plug (which they did for free).

Hope this helps.

 

I don't know this for a fact but... Edelbrock makes the TPIS intake and they are the same. The Arizina speed and the TPIS runners are the same. Regardless, they are all very comparable. FWIW.

 

If you have not already bought your
TPI intake manifold, you might want
to check out the GP (Group Purchase)
section.

I'm trying to round up buyers & negotiate
a price of $350 + shipping for the
TPIS Big Mouth intake manifold through
John Robie's robiecustoms.com

The more buyers we can get the better
chance of actually getting the $350
purchase price.

Check it out...
And add your post if your seriously interested.