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performance increase from triple strombergs??

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Re: performance increase from tri[le strombergs??

I do remember the good old days of "Ram Air" systems. I remember that the air entered a duct that was connected to the carb(s). Most Ram Air systems (true ram air)were open to the outside to permit the movement of the car to pressurize the duct and carb enclosure. The GP system does not do t his. It picks up outside air from the front of the radiator. There is no ram effect. I could be wrong because I don't have this but as I see it, there is a shield over the external filter to protect it from rain and there by blocking the air from rushing into the duct. Hence, no ram effect. As I said, I could be wrong.
 
Re: performance increase from tri[le strombergs??

The ram effect is generated by the high pressure are in front of the radiator. Much lessened if the radiator shroud is not in place or doesn't fit well. With the air filter in front of the radiator, the air has two places to go. Through the radiator (which is why the shroud helps with cooling) and the air filter. Yes the majority goes through radiator without a doubt but some is also forced through the air filter into the intake. It is minimal, and like the old muscle car systems, only has any real effect at speed. No forcing or ramming anything when the car is barely moving.

Again, its not a huge effect, maybe not even noticeable to the seat-o-the-pants dynamometer. But then again, neither were the ram-air systems of yesteryear. I like the aesthetics of the cold air box more than I truly believe there is some performance enhancing aspect of its "Ram-Air" capability. The cold air aspect is probably more realistic. With both the cold air box and my heat shield, my carburetors are cool to the touch after an hour of driving. Pretty amazing since my un-coated stainless steel headers put out a LOT of heat. :wink:
 
Re: performance increase from tri[le strombergs??

Paul:
I still can't figure why the 3" filters hit your fender and not mine or other users. I don't get it. I did measure everything before I ordered from Kai. I knew it was going to be close but I have no problem removing the front air filter to service the carb. I can even use the STE Air Flow Meter. I do have to squeeze it on at the front carb but it all works.
 
Re: performance increase from tri[le strombergs??

Shawn:
Your depiction of the workings of the Ram Air effect is spot on.

For cool air in the engine bay, I have left the 4” opening in the GP aluminum shroud. I am struggling with keeping the fuel to the carbs cool. I have wrapped the fuel line with tube insulation. It must help a little. But my fuel pressure regulator is mounted where the mechanical fuel pump was thereby the engine heat transfers to the fuel line at that point. I am coming up with some device to dissipate the heat and retain the regulator at that location.

Cool air and cool fuel would help tremendously in developing optimum HP.
 
Re: performance increase from tri[le strombergs??

It was a mystery to me too Al. I really wanted them after I saw yours up in Brookline at the show.

Now how is that 1,800 RPM idle problem coming along???????
 
Re: performance increase from tri[le strombergs??

Trick6 said:
Shawn:
Cool air and cool fuel would help tremendously in developing optimum HP.
Click to expand...

For cool fuel, I installed R. Good's aluminum fuel distribution block mounted on the horiz. surface over the passenger footwell, and plumbed with 5/16" rubber fuel line from the elec. fuel pump and along the batt. tray to the fuel block and then the 3 hoses to the carbs. It's a nice product, for about $35.

I retained 3 aircleaners, but fabbed their covers from 0.061" 6061 Al with a fly cutter. I sized them to be able to use the stock type paper air filters. Mounting holes for the F & R filters had to be offset slightly to allow clearance between carbs, but no other clearance or access issues. Filters are available (Puro) from any auto parts store relatively cheaply.

Tom
 
Re: performance increase from tri[le strombergs??

Paul:
Guess what caused the high idle issue? Binding throttle linkage. The Ratco kit is going to replace the existing linkage. I thought that I had it worked out but a little bit of heat expansion and, bingo. Those components really move around in there.

You told me some time ago to get the Ratco Kit. I fought the law and the law won. You are the best.
 
Re: performance increase from tri[le strombergs??

May there be peace in the valley and at every stop light when idling.

Here's my link on the Ratco: Ratco Cable Installation
 
Re: performance increase from tri[le strombergs??

OK, after rereading this thread, that will take care of yours Al, but what about Tony's high idle problem?

Art, did you guys get to review that setup?
 
Re: performance increase from tri[le strombergs??

Tommorrow at the tech session at his place we'll take a look see.
 
Re: performance increase from tri[le strombergs??

Let us know what you find Art.
 
Re: performance increase from tri[le strombergs??

You aren't getting any ramming effect with a cold air system at any speeds below 100mph, even then the gains are miniscule. You would have be traveling at 120mph+ to really feel any measurable difference.

All you are gaining with the Good Parts setup is access to cold air, which should work just fine. You're carbs however will be more finicky when it comes to temperature changes.
 
Re: performance increase from tri[le strombergs??

So Art, what was the problem with the high idle on Tony's car? Did you guys get it fixed?
 
Re: performance increase from tri[le strombergs??

We got so busy with two other cars, that we didn't have time to check it out. I did mention that we had discussed it here on the forum and that you guys had some things to look for. Maybe next week we'll see what's up. I'll keep you guys posted as to what we find. I may be back asking more questions.
 
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