Stroked96Bowtie

iTrader: (22)

For a LT1 style replacement CAI (SLP, K&N, Moroso, etc) is there a HP limitation with these setups? At what point would one consider something more custom?

Im all set to have a custom piece made next week, but wondering if its really worth it?

trippinholyman

cfm = rpm x displacement / 3456

how big how high you gonna spin it?

even if you spin it to 7000 and have a 6.0...

7000 x 366 / 3456
741 cfm


that's ridiculous. the CAI filters usually flow 900-1000 cfm IIRC, check their sites for actual cfm ratings

on second thought also remember that if you don't change it every run its gonna get some dirt on it and clog it a little bit. so keep that in mind too. don't necessarily go for the highest flowing one..find the one that flows the most after being used a bit i suppose? unless you are gonna clean it or replace it all the time..can be costly haha

Stroked96Bowtie

iTrader: (22)

Good formula to have, I was looking on the K&N site and didnt see any cfm ratings. Seems they would have a cfm rating for the entire CAI setup, not just the filter. So is the filter the bottle neck on a CAI? Its not limited once it gets passed the filter? If the filter is the primary restrictor on a CAI, that would explain why they dont have the entire system rated. Im hoping Im making at least some sense here...haha.

ss.slp.ls1

iTrader: (36)

Unless you have a radical set up, and I mean radical, concentrate your efforts elsewhere...

Stroked96Bowtie

iTrader: (22)

No not really. I know the projects are lining up...transmission has to come out soon...ugh.

FASTFATBOY

iTrader: (23)

K&N told me theirs would flow 1300 cfm with a larger filter. That supports a LOT of ponies.

Bersaglieri

iTrader: (13)

I wonder if anyone ever dug up CFM flows on the different CAI's, LPE, SLP, K&N, Moroso, etc....

Then I wonder, the LS1 airbox cant flow much more...so the gains must be from fewer turns...

-Dustin-

Puck

iTrader: (17)

The K&N FIPK flows more then a 58mm monoblade...it won't be a restriction unless the filter is very dirty.

I said a few times that I dyno'd back to back with a H/C 350 spinning to 6400 and only made less then 2rwhp more with an open TB then a FIPK.

Unless you are a high rpm 400+ Ci NA engine or turbo/supercharged a CAI is more then enough IMO.

I will be doing back to back tests with a FIPK and an LS1 lid on a big headed 7k rpm 383 once my build is together, both dyno and strip. I expect very similar numbers on both.

Bersaglieri

iTrader: (13)

Definately post up the numbers and settle the lid dispute.

-Dustin-

FASTFATBOY

iTrader: (23)

I can tell you this, there is almost zero restriction from my LT1 WS6 airbox setup. I did a key on engine off MAP reading of 103.5, WOT map was 102.1, stayed above 100 kpa the whole run.

Puck

iTrader: (17)

I doubt it would settle anything, its been covered a million times but everyone has their own views.

Personally I think its useless with anything less then an AGGRESSIVE NA 396 or a FI setup, but other people swear its good for 20hp on a 355. I don't see how considering I didn't even get a 5hp flywheel difference with NO intake, and the intake would need a considerable amount of positive pressure to gain that much, but to each his own .

hitmanws6

iTrader: (20)

the CAI will work just fine. and i have the PN for the bigger filter on the K&N FIPK if you are interested

Stroked96Bowtie

iTrader: (22)

Thanks for the inputs guys.

Think Im sold on trying to stick with an aftermarket LT1 CAI.

Now my setup isnt exactly stock, Ive got an Aarons elbow (w/AS&M TB) on a single plane (victor-e). Id be interested to see if anyone knows if there will be fitting issues, I know someone has tried this.

ahritchie

iTrader: (1)

Bringing this back from the dead.....what were the results? Don't tell me it's 5 years later and no progress

Puck

iTrader: (17)

No, of course not 5 years...just 4 and a half LOL. Motor itself has been finished for over a year but I haven't messed with it in a while. I swear in my head I stopped counting at 3 years lmao. Now the build is always "about 3 years old".

I paid off a motorcycle, bought a new one, and then got a second LT1 so the Z28 has been on the back burner for a while now. I am focused on rebuilding the TA as a decent baby cam/ported stocker DD, and then will be back on the Z.

No ETA, sorry :p. As a bonus though I am going a lot more aggressive on the rest of car since it will barely be seeing any street duty with the bike and TA replacing it.

DUDCOUPE

I made my own cai, 3.5 pipe all the way to the elbow. Ceramic painted so it doesnt get to heat soaked. Goes all the way down below the bumper for fresh air

cardo0

Again i like the Moroso Honker.

http://www.moroso.com/articles/artic...&catcode=34001

cardo