performance increase?
 

ok i just picked up an ultra z hood for my 98 z and i currently have the k&n intake on my car, should i see a decent increase in power while cruzing or would i see a better increase upgrading to an slp flow pac?

In my opinion, it's really just an appearance mod.

you might see a small increase at high speeds, but I couldn't say for sure. I would imagine that the Ultra-Z hood grabs more air than an SS hood. Not sure if it would be more or less gain than the FTRA / FloPac.

- Justin

ok without the hood in the picture any idea if the flow pac is better than the k&n? i was actually looking to trade for flowpac setup but will just keep the k&n if there the same performance wise.

the flow pac will definitely be better than your K&N setup....

- Justin

In essance, ram air doesnt "work" til 80 MPH or so...

The K&N kit for 98-02 LS-1's is junk..
It's main problem is that it doesnt isolate the engine bay temps from the incoming air and the Intake Air Temp sensor..
So your I.A.T. sensor is or will be reading a hotter air temp..
An air lid set-up or the Volant type of kits for LS1 Ram air hood cars that actually seals to the hood would be more effecient..
Both types of kits will seal off the I.A.T. sensor and air intake to the t.b. from the engine bay..

The flowpac is a ripoff

Fixxxed.

I beg to differ. Although a bit pricey, i wouldnt call it a ripoff. it definately works. i made a ram air box similiar to the flo pac's design and i gained nearly 2 tenths and 1.5 mph on average; and i already had the SLP lid and K&N filter. if you can, buy that stuff used. its a bit pricey. thats why i made mine out of sheet metal

what is it with you Hating on the LS1's so much? lol

Have a writeup on that?

Wouldn't want you guys getting to full of yourselves... :mrgreen:

The K&N intake has been proven in the past to be barely an improvement over stock.

The SLP lid, ram air, and smooth bellows on the other hand helps a ton. The car grabs almost all of it's air from underneath, hardly anything actually hits the leading edge of the hood because of mediocre aero on the nose.

Get the SLP or Fast Toys ram air kits, both are easy to install, and you will see a nice gain.

-Tim

yea i traded that k&n for a tsp lid and ram air duct a month or so ago

Is that the duct that goes in front of the rad?

unfortunately, no. its not too hard to make though. you just need to take a few measurements. if you know somebody who has a FTRA or SLP duct, that would help. I didnt know anyone who had it so i just winged it


Why would we be full of ourselves?

+1 on that.

Fixxxxxed :lol:

Now thats just mean.:cry:

:moon:

easier to pass inspections, not really. :lol:

That would be the reason why I would sell my car and get a 96.:nod: