Hi..

I want to make more power in theupper rpm's and cant buy a miniram. So is the superram or AS&M semi-runners the only way to go?

Or is the SLP worth buying?

Has anyone compared SLP vs AS&M ???

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GTA -89:Free flow muffler,dual 3" HF cats, Edelbrock headers, Vette heads, 1.52 RR 7/16, ZZ-9 cam, Big Mouth, AS&M LTB, ported plenum, 52 TB, MSD 6AL, TPIS level V prom, Mod .MAF, Superior shift-kit and some minor mods. and more to come!
http://www.itv.se/tacs/members_cars/m279/m279.html (Swedish Trans Am Club)

 

I am currently porting a set of SLP runners. I must say I was not impressed with how they were delivered, no comparison to the AS&M runners. The AS&M runners are made from extruded alum tubing with a very smooth surface finish plus their inside dia. is a consistant 1.66" throughout. The SLP's have a 1.60" entry, but mnay points in the runner are less than that, some places a 1.55" feeler will not pass! It took lots of porting to open mine up and smooth out the areas where the ports had obsructions due to the boly mounting areas. When I was all done, I could pass a 1.60" feeler at all points, and a 1.65" feeler in most areas. I probably spent 10 hours to do one side. I am trying to get the before and after runners flowed right now, if I do, I will post the flow data.

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Dave Zelinka

 

Ditch the Edelbrock headers for SLP 1 3/4" headers, then get a SuperRam. Mucho upper RPM power to be gained there.

If you want to stick with the runner setup, get the AS&M runners.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

I just got my SLP's, and I plan on porting the chit out of them. I admit that out of the box the AS&M’s are probably a better performing runner than the SLP’s. But I think that w/ some work the SLP’s can be just as good. You can buy 2 sets of SLP runners and have money left over for the price of one set of AS&M’s. One advantage of the SLP’s is that they are cast w/ tons of extra material so you can do a lot of porting. If you have $$ and no time or porting knowledge/resources, buy the AS&M’s. If you are on a budget like I am and don’t mind spending some time porting, buy the SLP’s. A couple of weeks ago, there was a pretty good discussion about this on a post started by TRAXION titled “Why are the AS&M SS LTR’s better than the SLP’s.” Check it out if you haven’t already. Right now I am in the middle of porting my base, and let me tell you it is time consuming.

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87 IROC 350, 3:42 Torsen, pocket ported 083 heads, complete Edelbrock exhaust, Most free mods, Most little mods, aluminum d/s. Edelbrock STB, SSM sfc's, boxed rear suspension pieces, urethane bushings everywhere.
Stock cam, chip, runners, base, and trans
13.94@103mph, 2.25 60'
In the works: ported SLP runners, ported base, Xtreme Cam, homemade suspension pieces, and 27x10 Hoosiers.
Hoping for 12.999

 

Or if you are like me and for once come across a steal of a deal on AS&M Siamsed runners, BUY THEM!! Even if you don't use them you can sell them.

I got mine used, but never installed for $300 shipped. The runners are out there if you really want to look.

 

I got my SLPs NEW from summit for well under 200$ from summit last year.

 

skip the LTR stuff and get the HSR. same price or less and get way more uper rpms. especially with that zz9 cam you have.

 

You realize that you responded to a post over 3 years old....I assume by now he has done whatever he was going to do!

 

sure didn't. but hey at least some questions were finally answered.

 

ha ha