Any recommendations for porting a Superram?
Does anyone have any recommendations? I'm in central VA, but I can ship it if necessary. Would I ideally bring in my heads as well so they could port match the base to them?
I know you need to extrude hone a SR to get the most out of it, which means $. I think I've heard the base is usually the biggest restriction, so I might just see about getting that ported depending on cost.
seeing those gaskets still on the intake brings back many memories of gasket scraping with a razor blade and cut fingers.
Until I finally got it worked out, I used to buy gaskets kits 3 at a time. Probably had it on and off ten times. The one that pissed me off the most was having to take it off to change a fpr diaphragm cause of those stupid security torx bits.
good luck with your project. Keep those old super rams bolted up and ripping.
And thank you!
Last edited by C4ProjectCar; Jan 12, 2021 at 07:46 PM.
One thing I learned was to rtv the gaskets on ones side and apply white lithium grease on the other. When it came down to removal, the lithium side would separate and the gasket could be reused over and over. This worked on the plenum to runner gaskets and the runner to manifold gaskets. One set would last a dozen teardowns.
Last edited by 383vett; Jan 12, 2021 at 08:13 PM.
Base and runners taken out quite a bit...some were siamesed and the lid matched, others not.
Its a crapton of work and time....never got EH personally but have bought cars with it done. If you get an aggressive job Id go for it.
The Best of Corvette for Corvette Enthusiasts
I have only seen before/after dyno data from richard holdener done with the tpi stock then extrude honed.
steviedr, slickfx3 and one (cant remember his username) but Mike..his 383 with a sr ported to the point of needing epoxy, a healthy Jones cam made 450+ to the ground with a rediculous amount of tq
Took his 195 Afrs and picked them up some more. That car was fast...dont know if he made it in 10s or not he was breaking parts
Stevie dr picked up 2xrwhp and almost 50lbs just doing the intake and nothing else. Threads are somewhere on here.
Keep all flowsheets but they are buried, in the middle of spring cleaning.
800 sounds about right, its getting that "extra" out of your parts that costs...go for the extrude hone I say.
Last edited by cv67; Jan 14, 2021 at 09:37 AM.
steviedr, slickfx3 and one (cant remember his username) but Mike..his 383 with a sr ported to the point of needing epoxy, a healthy Jones cam made 450+ to the ground with a rediculous amount of tq
Took his 195 Afrs and picked them up some more. That car was fast...dont know if he made it in 10s or not he was breaking parts
Stevie dr picked up 2xrwhp and almost 50lbs just doing the intake and nothing else. Threads are somewhere on here.
Keep all flowsheets but they are buried, in the middle of spring cleaning.
800 sounds about right, its getting that "extra" out of your parts that costs...go for the extrude hone I say.
I'm torn, because a Procharger kit would get me more hp per dollar, but I'm not sure if I want to drop $10k on the car right now for the kit and all the supporting mods... decisions, decisions.





The picture below gives you an idea of how much I did. My point is, after all that porting, I would have chosen Extrude honing given the chance for a "do-over". It's not because I don't think I did a good job. It's a combination of two things:
1) It was a lot of damn work that I would NOT be excited to do again.
2) No matter how good hand-porting is, FORCING abrasive material through ports seems the better option. By default, it's going to remove material at the "pinch-points" (tightest bends) and remove it evenly throughout the ports. In a way, you can think of it as a trillion years of abrasive air erosion in the ports...making it bigger and bigger.
Plus, as shown, the results can be impressive.
Last edited by GREGGPENN; Jan 19, 2021 at 12:37 AM.
Years ago, I gasket matched and mildly ported my intake base with a dremel. Even that took me a good number of hours, and I totally regret it. There was no noticeable improvement, and if anything I probably just made airflow inconsistent cylinder to cylinder.
Years ago, I gasket matched and mildly ported my intake base with a dremel. Even that took me a good number of hours, and I totally regret it. There was no noticeable improvement, and if anything I probably just made airflow inconsistent cylinder to cylinder.
Last edited by C4ProjectCar; Jan 19, 2021 at 11:55 AM.











