somws6ta

Is it worth upgrading to the 85mm fast toys lid + 85mm slp maf? Looking at ls6 heads with tr228 cam. fast 92/92 setup. LT headers, ORY, catback. Right now it is stock other then the exhaust setup. can't decide if I just want to order an slp lid or if I want to order the fast toys lid plus maf. Oh and the tune I have is just from a hand held device (diablosport.) Just got a new job with a nice raise going to modify this thing like I always wanted. But at the same time I don't to just throw money out the door.\

edit: one more question. With the type of setup I'm doing what will the difference in hp/tq (approx of course) be if I just go with ported throttlebody and ls6 intake?

RZRSEDGE

iTrader: (21)

I really like my Fast toys lid and 85mm MAF. May I suggest instead of getting an aftermarket MAF that you just get a 85mm truck MAF and get the car tuned for the MAF. You could just get the adapter gasket with the lid and run your stock MAF until you get a tune for all the other stuff. Alot of people have problems out of the aftermarket units when it comes time to tune them. Good luck and welcome to LS1tech!

MrElectric03

iTrader: (71)

I dont think you will notice much difference in stock form from the SLP lid to the Fast Toys, however once you mod it with the heads and cam it should show a bit more gain. I have been told by many tuners that its better to just get a Z06 or even just a C5 85mm MAF and have it programmed in the tune with a dyno tune.I suggest getting the Fast toys lid and an 85mm MAF and a dyno tune..would be great to find a good tuner who will give you a break when you bring your car in for the cam/heads tune also.

As for the LS6 and FAST, same thing. In stock trim not as big of a gain but once you get the engine needing more air with the cam and heads it will gain much more.

Looking back on my setup I actually wish I had not gotten the FAST combo and spent that money on either AFRs, Edelbrock 245s, or TFS heads and upgraded the intake later...live and learn.

By the way...currently im upgrading to a Fast Toys. I would do it just for the fittment the power is just a bonus.

somws6ta

Ok guys can you help me compare 2 different scenario's and tell me the approximate hp I should expect with each one. This way I know the direction to go.

First setup
-slp regular sized lid with jaam kit and stock maf
-ls6 intake with ported tb
-header back full exhaust
-228r 112 lsa with prc stage 2.5 5.3L

Second setup
-Fast toys 85mm lid with jaam kit and slp 85mm maf
-fast 92/92
-header back exhaust
-228r 112 lsa with prc stage 2.5 5.3L

I just want to compare the differences between the two setups. How much HP/TQ difference will there be? thanks in advance guys.

somws6ta

any help?

DaddySS

If your car is running out of air after you do the tuner will know. In most cases the 85mm MAF is not necessary and will offer little or no gain. Do your mods and get a good tune, then you'll know.

Patience is a good thing when building power.

somws6ta

I understand that but if you look above I just want to have a general idea of which direction to go into. Obviously it won't be set in concrete or anything. I just finished ordering kooks long tube headers, kooks catted y pipe, and b&b tri flo exhaust. Looking for more things to order

Formula98ramair

iTrader: (1)

One guy I known got an MAF dino showed that after market was less gain than stock so he went back stock

somws6ta

I don't understand how going from a 85mm lid to a 78mm maf to a 92mm tb/intake could be better then a 85mm lid to 85mm maf to 92mm tb/intake

srtricky

iTrader: (1)

ttt

silverz28camaro

iTrader: (20)

Right!! Why have a huge 90mm tb if the maf is only 75. Wouldn't common sense tell you that the maf is the restriction.

And if someone looses power going from the stock to a 85mm it is either from the tune, weather, or different dyno days.

For every 20 things I hear good about the 85mm/85mm combo i will hear 1 bad thing. Very similar to everything else on the internet.

I am ordering the 85 combo asap. There is no way a bigger air intake system could rob power. If anything i could see that if you have a 85 lid, 85 maf and the stock throttle body there may not be a huge gain but with the 90/90 combo as well you will be taking full advantage of the combo.

(slp lid,stock maf, stock tb and ls6) vs (85 lid/maf, and 90/90) I would bet 30hp easy and more with heads and cam.

azredbird

iTrader: (6)

I'm curious as to what your final results will be. I just made the upgrade from the (slp lid,stock maf, stock tb and ls6) to the (85 lid/maf, and 90/90) with stock heads, see mods in sig.

Let us know what the numbers are after you upgrade and the dyno session is complete.

teke184

iTrader: (5)

to answer your comparison question...

my guess would be 20hp....mostly due to the FAST intake.

if that power is worth the $1500+ the new lid, maf and intake/tb would cost...then by all means go for it.

but honestly...you'd probably see 12-15hp from just the 90/90 setup.

your h/c setup is not huge by any means...so the gains from the FAST will be marginal.

i say stick with what you have, you can always upgrade later. remember the Street Warrior should be out sometime between now and the next time Haley's Comet shows up



but in reality...you could put that $1500 towards better heads and probably make better power. perhaps some milled TFS or AFR 205s

The Alchemist

iTrader: (19)

Going with the larger intake lid and maf is a smart move.

Keeping the stock size on with having a FAST 92/92 combo is like putting on long tubes, with an off road ypipe with a stock catback. You're still only going to flow as much as your biggest restriction.