I know this is a Corvette but the information contained in the post is interesting for F-bodies.

I have a 1986 vette with various modifications (listed in my sig) and I decided to change from the large tube TPIS runners to the Superram intake manifold. Nothing else on the car was changed other then the large tube runners to the superram. I did a before and after dyno comparison to see what the real differences were. With the large tube runners the car had 272 RWHP at 5000 RPM and 355 RWTQ at 3400 RPM. After the change the car had 311 RWHP at 4700 RPM and 376 RWTQ at 3700 RPM.
I was very happy with the 38 RWHP gain that the superram gave me and even more impressed with the torque gain that was acheived over the Large tube runners. When you compare the two runs to each other the Superram beats the large tube runner setup across the entire testing range of 2800 RPM to 5700 RPM. One other thing that I found interesting was the HP peak of both systems, the large tube runners actually peaked at 5000 RPM while the Superram peaked at 4700 RPM. I was expecting to see the Superram peak at higher RPM then the large tube runners. Both systems actually had very little drop off in power after their peaks to the test end of 5700 RPM, with a drop off of only 10 HP for both.

Overall I was very impressed with the gains of the superram over the large tubes, next I am going to change to the 219/219 superram cam and note the changes from the ZZ-9.
_______

1986 Coupe, auto, 3.07 gears, 1987 355, 10.2 to 1 compression, SLP cold air, gutted MAS, 52 MM throttle body, ported plenium, TPIS large tube runners, TPIS BASE, 23 degree Trick Flow Heads, ZZ-9 cam, TPIS headers, SLP 2400 Stall, Cheap and easy free mods, stock chip, daily driver
RWHP 284 @ 5100 RWTQ 344 FTLBS @ 3300
Best ET 12.69
Best MPH 106
Best 60 FT 1.73

 

That is interesting, I would also think the Superram would move you peak HP up, at least a little bit. What I think would be really interesting would be what your set up would do with a TPIS miniram. I am using the same cam as you (ZZ-9) and our engines are fairly similar. I may have slightly more compressing, you probably have better exhaust. Mine dyno'd at 359 RWHP at 5700 and at 6000 it was still at 358 RWHP. It was down to 352 at 6200. You do have more torque, my peak was 370 at 4000 RPM's. Some of the difference is my car being a manual trans. I think the LT1 intake is similar to the miniram, too bad they are so expensive! Probably with your fairly high rear end gears, the Superram may be your best choice.

 

very interesting thread brian......

 

Just curious (and maybe I missed it) but what base are you running on your manifold? Or does the SuperRam come with it's own base?

 

The superram has its on base.

Very pricey for the whole setup.

 

Sounds WELL worth it though.........

 

I suppose. haha...i plan on getting one soon...stupid northern virginia emmissions...

i rather have a miniram or stealthram. but for some reason these compamies wont make them sniffer friendly, wonder why?