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I'm doing a 406 (for a '90 Vette) during the off season and am planning on using a SuperRam. It's meant for street and autocross use, no highspeed track time. I want a torquer and don't plan on ever turning it much past 6k.
-It seems I can get a new SR setup from either Accel or LPE, are there any functional differences between the two?
-Do either setup need any porting/cleaning up prior to installation or are they ready to fly?
-I know I need plenum, runners and base manifold. I believe I can use a standard TPI base manifold (opened up or not), the question is do I give anything up by going this route? Is the SR base manifold anything special?
-Can I use the standard TPI fuel rail setup or do I need something special here too?
Any special information or tricks you've learned are welcome, I've heard these things are a hassle to work on...
The superram is a great manifold for autocross. I've been using one on my 383 for about three years now. The base is quite a bit bigger than stock. Porting is not required, but highly recomended. At least port match the gaskets for better flow. The tricks that I learned are to drill out the threaded holes in the center of the plenum and thread the tubes, and to use allen headed bolts with a cut down allen wrench. Good luck,
Joe :thumbs:
As the others said, Rich at cruzinperformance has a great reputation here on the forum.
The ones from Rich, LPE and accel are the same parts.
Get the accel base. A ported stocker wont flow as good as an untouched accel and the accel has room for porting which I think you will need to maximize in order for it to work well on a 406. Also, you can reuse your fuel rails. You may want to port the plenum/runners and base as much as possible to get the extra potential with that many cubes.
St. Jude Donor '07-'08-'09-'10-'11-'12-'13-'14-'15-'16-‘17, '22
Re: SuperRam questions (red90sixspeed)
Sounds like you will be putting a sweet motor together.
As the others said, Rich at cruzinperformance has a great reputation here on the forum.
The ones from Rich, LPE and accel are the same parts.
Get the accel base. A ported stocker wont flow as good as an untouched accel and the accel has room for porting which I think you will need to maximize in order for it to work well on a 406. Also, you can reuse your fuel rails. You may want to port the plenum/runners and base as much as possible to get the extra potential with that many cubes.
Let me know if you have any interest in a TPIS Bigmouth ported lower and the LPE Super Ram runners and breadbox fro $1,000 . I'll throw in a gasket set and the correct LPE throttle bracket.
Just ported out my base(accel) and the SR runners. You can grind ALOT away and also make them MUCH more smooth. I can't image I will not pick up more HP. Especially with an engine that is gonna need to breath better. Give me about another month or so and I will tell you! :lol: That is if the weather stays away. :cheers:
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Let me know if you have any interest in a TPIS Bigmouth ported lower and the LPE Super Ram runners and breadbox fro $1,000 . I'll throw in a gasket set and the correct LPE throttle bracket.
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I'm interested, how about just the plenum and runners (and throttle bracket)...? I think those two parts go for about $800 new... I've got an opened up TPI manifold already but think I'll still spring for the matched setup...
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Is your car a 6 speed our an auto? Why not use the block you have and build a 396 like I did? I am assuming that you are using a 400 block?
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I actually gathered information on doing a 396 from my L98...
I have it from a knowledgable authority that a 406 (400 block) is going to make mid-range torque better than almost anything else (in a small block), and that's what I'm looking for (for autocrossing).
There is an argument that a longer stoke motor will make more torque than a shorter one. On the other hand, I have heard that stroke makes no difference and that cubic inches is what matters. I have a ton of midrange torque with my set up. You can see my dyno graph here The blue lines are with the SuperRam manifold. As you can see its all mid range torque. I have problems with traction now. Many people like the 406 motors and there are great examples on this list of some VERY vast cars (Corkvete1). I guess I should listen to my own advice when I say "Opinions are like Azzholes......" and shut up now. Good luck with your build.
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Let me know if you have any interest in a TPIS Bigmouth ported lower and the LPE Super Ram runners and breadbox fro $1,000 . I'll throw in a gasket set and the correct LPE throttle bracket.
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I'm interested, how about just the plenum and runners (and throttle bracket)...? I think those two parts go for about $800 new... I've got an opened up TPI manifold already but think I'll still spring for the matched setup...
-It seems I can get a new SR setup from either Accel or LPE, are there any functional differences between the two?
theyre the same thing
-Do either setup need any porting/cleaning up prior to installation or are they ready to fly?
For a 406, i would port it. For a 350-383 its not essential. If you bought it used i would make sure its clean, otherwise just stick it straight on out of the box.
-I know I need plenum, runners and base manifold. I believe I can use a standard TPI base manifold (opened up or not), the question is do I give anything up by going this route? Is the SR base manifold anything special?
The TPI base will fit it, but its not a good idea, the TPI base is terrible in comparison. You should use a TPiS BigMouth or the one designed for the SR.
-Can I use the standard TPI fuel rail setup or do I need something special here too?
To the best of my knowledge you can use the stock fuel rail setup, i havent heard of anyone having to change anyway. You just need bigger injectors and you might want a AFPR.
Let me know if you have any interest in a TPIS Bigmouth ported lower and the LPE Super Ram runners and breadbox fro $1,000 . I'll throw in a gasket set and the correct LPE throttle bracket.
I can vouch for those parts. They're coming off of an extremely quick L98 that tears Vipers up left and right off the line street or strip.
Let me know if you have any interest in a TPIS Bigmouth ported lower and the LPE Super Ram runners and breadbox fro $1,000 . I'll throw in a gasket set and the correct LPE throttle bracket.
I can vouch for those parts. They're coming off of an extremely quick L98 that tears Vipers up left and right off the line street or strip.
The car this is coming off of runs 12.1's NA on a 350 with 134K.