I'm running a superram and debating about doing a single plane....I have lots more room under the hood then a corvette/camaro so that's not a problem. Think there is a way to build an elbow that would make more low end TQ like the superram even if it hurts top end power some? I just want an intake thats easy to work on vs the superram and has the TQ of a SR. I have read on a thread on ls1tech.com about single planes and a guy commented that the elbow effects TQ. If there was more pleum space would it create better TQ or would a longer smaller tube type elbow create it? I feel like the ford performance type elbow with a 2-4" carb spacer would help produce more TQ but may hurt upper rpm power....what are your guys thoughts?

 

Sorry not trying to change the thread.... I can start a new one if need be.

 

Runner length effects tq and power. Elbow would just make more plenum volume which can have benefits.

You want a smooth radius elbow. The ls1 fbody guys have little room and run very poor designed elbows with horrific 100-110 deg or so bends to fit under hood. Thats one reason why they dont seem to make as good power with them as they should. That bend is a terrible flow restriction.

 

here is an interesting thread on the subject,
needs can vary between efi and carb, and auto v manual.

http://speedtalk.com/forum/viewtopic.php?t=1142

 

Swapping intakes is one of those things that can make or break a combo. If the cam, gears, and converter is matched well to the SuperRam, swapping out to a single plane could hurt you. On the other hand, it could make a world of difference if the combo "needs" a higher revving engine.

Saying that and not knowing any more than I see here,, with the truck, if the SuperRam wasn't doing it for me and I wanted to keep as much TQ as I could with another intake, I'd suggest you look at going with a StealthRam or equivalent copy, then make two (2), 4-hole runner extensions (they'll basically look like a 4-hole carb spacer) as tall as you can go and still close the hood. Matched to the base to plenum gaskets, they'll add runner length to the intake (unlike a carb spacer). The overall runner length won't be as long as the SuperRam, but the added 2-3" in runner length will make a noticeable increase in midrange TQ over a "stock" StealthRam.

Plus, as eluded to earlier,,, if you have a well matched cam to the SuperRam and you're happy with the manners, it should still work very well with the extended runner StealthRam. If you go with a true single plane, the decrease in runner length is going to make a noticeable drop in power at stall speed,, unless you're running more than a 3000 stall right now.

 

This is a great idea! Never thought of extending the runners on the stealthram.....anyone know how tall the stock stealthram is?

 

Holley has it listed at 10.25", but sitting on the bench, it measures right at 10.125". 10.25" is probably about right measuring from the china wall on the block.

 

no matter what you did to the superm cam gears or what have you that intake was done by 5200 rpm. Its what I had on my.. stage 5 383 installed by Lingenfelter..you want maximum horsepower and performance get a better intake.

 

So I got a killer deal on a stealthram and had to pick it up. Looks like total runner is 12.26" vs superrams 21". I have welded and ported the snot out of my superram and lowered the runners a good 2" or more so now say there total is 18-19". Now with that said I think I. Going to make 3" spacers to the runners on this stealthram. So then the runners would be 15.25" ish. Any guess how much this would shift the TQ. I'll port the stealthram some to get 300+cfm if I can.

 

lingenfelter has done all the tricks to the super ram..back in the 90s.