I just did the FRA mod and installed an MTI transparent lid with a paper filter on my automatic 02 Z all I can say is WOW what a difference in gain I was going about 20 mph and I just opened it up when I did my rear tires chirped which it has never done and the car took off like a bat out of hell just with these 2 mods made a difference...next is the SSRA..

 

P.S. we have a 347 LS1 motor.

 

Yeah, that always cracks me up. Similar are the "327" trucks.

Ben

 

i thought LS1s were 346s.

 

346?

 

yep, 346 point something. Manufactured in Canada, so it's measured in metric.

 

huh? That number you just stated is cubic inches- a standard unit not an SI unit.

Ben

 

i think the 3.8 liter is 3800 cc's so god knows what the 346, or 347 (whichever) is in metric. not talking liters.

 

Yes i know, i meant the reason that it's such an odd number in difference to a simple '350' is that the engines were manufactured in canada where they use a different unit of measure, namely cc's. It's an even number in cc's, but not in cubic inches.

Same reason we have 16.8 gallon tanks. in liters, that's a whole number.

 

Okay, I understand what you were trying to say now. Just checking.

3.898 by 3.622

versus;

4.00 x 3.48


Ben

 

1000cc = 1 Liter

Not talking liters? Then you must mean cc's. It would be approximately 5700cc. This really isn't all that hard considering GM calls our engine the "5.7 Liter LS1".

I'm guessing you typed faster than you thought.
Ben

 

Any gains felt @ 20 MPH is all lid. No ram air will kick in until much faster. Unless...you could be setting in a windtunnel, but then the added drag would negate the gains.

 

the FRA is not really much of a "ram air"...

the gains felt from it can be at lower speed, but they are a result of a less restrictive air box. which can be felt at any speed.

 

FWIW, we don't even have "5.7s" .....We have 5.67L motors

L X 61 = CI