92superram

Im thinking about using a super or turbocharger. Will a super/turbo work better with the stock plenum or superram? Would the bigger ammount of air in a superram plenum cause more lag?

Pete89Z

Your only concern about lag would be if you went with the turbo instead of the supercharger. I would personally go with the supercharger, they add smooth power all across the band where turbos work only for high-exhaust-flow hign rpm applications. With a supercharger, the superram would work great. It has increased TB size to allow more air to enter and it flows much better then stock. I'm working on a supercharged and nitrous 350 for my 89 IrocZ, it should provide for decent drivability and awesome performance on the track.

89IROCZZ4

This is something that I am VERY interested in as well to know about - I have heard both sides....

Since the SuperRam allows more flow, it is a no brainer that the SR will work great with the supercharger...

OR

all the rules change with boosted applications, and the stock tpi will work well with the supercharger. I have heard that there is a reason Lingenfelter used the stock tpi with his twin turbo sledgehammer setup!

Anyone else??? I would LOVE to hear more from you guys, as I have a fully ported SuperRam and 12psi ATI P600B not installed yet on my ZZ4 that currently has stock tpi.

DARCOM

I have a Vortech connected to my SuperRam and it works great
im about to hook a mondo vortech to it to see how that goes.

you can see my simple site at:
http://darcom.home.texas.net/

Synapsis

The only difference I could think of is that with a higher flowing superram, it'd take more boost to hold a certain pressure while the vacuum is being applied to the intake by the engine. The higher flow will remove more of the pressure than a regular TPI.

But since you can set the boost anyway, I don't think it'd make much of a difference.

Or I could be totally wrong. I've never run forced induction, my experience is with various vacuum systems for industrial applications.

TheCamel

You will find with a boosted application that the air is flowing all the time. even at idle the engine does not have to work as hard as when you were naturally aspirated. with a blower the air is already pressureized with a turbo its not exactly a vacuum but you are not at 18 inches of vacuum either, a slight tap on the throttle and you are in the zero pressure (non boost no vacuum) area. Don't worry about the superram with a forced application the possible air surge you are worried about will acctually not be there, If you look at some of the newer vehichles with a 350 or a truck you will see what looks to be a large tumor on the intake tract, some are ball shaped and some are shaped like a long tube, these are acctually air storage chambers for the intake tract so the sudden increase in vacuum does not stall the engine while the air velocity in the regular piping increases. You will have positive pressure in the intake already so there is no real problem to worry about with such a large surgetank. If you read through some of the posts you will see the N/A folks have problems with the factory TPI units running out of breath around 4800 rpm (non ported or polished) But they are all doing work to increase the size of theor runners, their port bowls etc to get back the lost velocity of air, and giving it the smoothest avenue of travel, with a forced induction unit there is not really a worry because the pressure will overcome the obstacle.

Just make sure you have the i\gnition and the fuel supply to meet the new amount of air it will have.

Sean

89IROCZZ4

Thanks, Sean!
That is exactly what I was thinking, but naturally there are people who appear to be experts in the subject but say totally oppositte things. I am thinking about selling the SuperRam though thinking about getting fastburn heads which will drop the Compression ratio from 10:1 to 9.6.1 but add hp. However, again since this is the stock tpi, I am not sure if this will help - even if it is a boosted app. Anymore suggestions or comments would be great!

B4Ctom1

I plan on using one as a dyno experiment on the R&D car with a really spun up stage II P1SC with a 412. In an effort to keep costs down I'm looking for a aftermarket lower,and aftermarket TB (late prefer 58mm), any one got one?

89IROCZZ4

top!

TBurke

The SuperRam didn't work with a Paxton on my '85 because of interference with the blower ducting and upper plenum. I've seen it work on a Vortech set up.

B4Ctom1

somebody brought up the topic that J.Lingenfelter used a stock style TPI unit on one of his turbo projects. I find this very interesting as a superram owner.

Bobalos

IIRC it was Callaway that made the sledgehammer, not Lingenfelter, I would find it hard to imagine that Ligenfelter would not use the box that he designed for a project like that. A TT project would be a great platform for showing of his wears.

BW

johnsjj2

I am personally fond of turbocharging. This may be because I have not done a lot of research on supercharging, but I feel that a turbo is much more efficient than a supercharger. As far as the TPI/SR deal, if I had enough money for the supercharger, I think I would get something else besides a TPT set up.

TBurke

Lingenfelter rarely uses forced induction. Callaway did a twin turbo. It was packaged so tight I doubt the SuperRam would fit.

B4Ctom1

and I still need a bottom, TB, and heads.