Violatorno1

iTrader: (3)

I've been out of modding my TA for a few years now and finally looking to go at it some more. I am currently running a stock bottom end LS1 with a set of old AS 5.3 heads, LS6 intake, FTP 85mm lid, ported stock TB, 1 3/4 longtubes. Cam is a Lunati Voodoo grind 232/238. SD tune.

I am now looking into upgrading the intake setup and would like to know which would be more beneficial to the current mods. FAST 92/NW 92TB and FTP 98mm lid or FAST 102/NW TB and FTP 104 lid?

After upgrading the induction I was looking to move to 1 7/8 headers. The car is a 6 speed running 4.11 gears. Any input would be greatly appreciated.

garygnu

I would get the 92mm intake.you need a ls2 fuel rail for the fast 102 intake.and you current injectors will plug in with no problems.the 102 TB seem to have a clearance problem with the water pump.I hear the 92 TB is easier to tune also.

Mike Morris

iTrader: (55)

If you have the money the 102 ported will make most power. But its pricey. ....Your current lid is fine for your future mods. Don't waste your money

Violatorno1

iTrader: (3)

Problem with the current lid is that it's one of the early ones that has fitment issues so I was planning on a new one. Is it true the 102 TB has fitment issues?

ULTIMATEORANGESS

iTrader: (4)

id get a 102. i dont regret it.

badazz81z28

iTrader: (6)

If you price out an used LS2 rail and a FAST 102, you will see the 102 intake is cheaper than the hyped FAST 92. Unless you can find a ported 92 for a great deal (Less than 750.00), Go 102. You can find FAST 102s new for as low as $770 shipped on Ebay...A FAST 92 is $849 shipped. The runner design is superior to a FAST 92 and will make more power. The only benefit the FAST 92 has is the use of the stock LS1 rail.

garygnu

from the dyno results I have seen on here the 102 intake only made 4 more hp then a fast 92 intake,using the same 92 mm TB.

bayer-z28

iTrader: (14)

FWIW, I'm seeing upwards of 105 kPa in my log runs with the 102/102 combo.... Almost NO Vacuum at WOT. Intake works awesome!
Very snappy throttle response, but I'm wondering about switching to a FAST 102 TB instead of the NW 102 for drivability reasons. But I messed with the tune a bit more last night and some injector timing changes, and the car ran butter smooth last night!

badazz81z28

iTrader: (6)

There are dyno sheets on here showing side by side comparisons. Not only did the 102 make more power, it was more power all across the board. It was more than 4 hp....

https://ls1tech.com/forums/generatio...ts-inside.html


Not bad for being CHEAPER than the 92.

Violatorno1

iTrader: (3)

I'm really leaning towards the 102. Are you running in SD or using a MAF? What lid are you using if you don't mind my asking?

garygnu

my bad,I could not remember who did the testing .in my old age I am forgetting too much.if I didn't already have a fast 92 intake I would buy the 102 intake,I like the map mounting up front.its hard to believe you can get the 102 intake for less then a 92 intake.

sscamaroburn02

iTrader: (14)

Fast 92 intake is all you need. You will not benefit from a 102 on ls1 motor. More cubes then maybe. Also you need new fuel rails/injectors as well if you get a 102 and they aren't cheap either.

My6speedZ

iTrader: (18)

102 here, SD tune with FTP 98mm lid to a 4 inch coupler from silconeintakes.com.

I say go 102. It what I'm running and I don't regret it, not to mention I'll have it for when I go cubic inches in the future.

20sickss00

iTrader: (19)

FAST 102 and ptm 102 throttle body, minor grinding on the water pump to clear but no biggy for anyone who is somewhat mechanically inclined. Yes you will need other fuel rails, which there are ways to doing that cheap or getting the fast rails and crossover kit for a lot. Got my fast rails and kit from vengeance, they have everything figured out for spacers and fittings and what not.

https://www.vengeancerd.com/ecart/pr...%252d-Complete.

It sounds like a lot, but if you price all the pieces out individually its about the same if not more.

you will need thin style injectors. the 102 looks great and will work fine on a stock cube ls1 with the correct tune. I was running heads cam ls6 intake with 85 maf and made 430 to the wheels with 390 torque. I changed to 1 7/8th kooks headers and the 102 setup with 98 fast toys lid and rubber coupler, no maf, SD tuned and made 465/ 410, and it drives good and sounds great. good luck with whatever route you decide to go.

sepsis

iTrader: (7)

Wrong. You will gain with the 102 over the 92 on a stock cube motor.

You can use the stock LS1 injectors with extenders with a new fuel rail.

badazz81z28

iTrader: (6)

Pretty much the way I made my decision was...Hands down there is no arguement the "as is" to "as is" comparison, the FAST 102 is a better intake and will make more power, even if its only a few...But if the price was the same, wouldnt you go for the few hp? They say a stock FAST 102 out-flows a ported 92.

A brand new FAST 92 is $849 shipped (almost Anywhere)... Re-use the rail and injectors.

A brand new FAST 102 can be had for as low as $750 shipped (Ebay)...
Can re-use stock LS1 Injectors = Free
LS2 fuel rail = $50-$75

Total:
FAST 92 $849
FAST 102 $825...Sell the LS1 rail for $25-40....FAST 102 is now $785-$800

Side by side comparison...price isnt that much different...

bayer-z28

iTrader: (14)

No MAF and an FTP 98mm lid. It's basically like an ITB intake, but the runners just share a common plenum. Just been a lot of work getting the drivability right.

Just takes more accessories to go with the install which raises the overall project cost.. May need a new fuel pump too, depending on the setup and the tuner. The throttle response is damn near instant. There was a black TA comparison dyno video around somewhere. -Between the LS6 and 102 intakes. There's a significant audible difference between the two.

And I learned a lot talking to Mamo about intake theories.. But it pretty much just boils down to the fact that the TB size isn't what makes/breaks an intake. It's not the deciding factor in the intake's performance. Look up "Million dollar gamble" story behind the 102. FAST did a LOT of R&D on it before production.

sscamaroburn02

iTrader: (14)

Yes what I was meaning was it's more money for what like maybe another 5 hp. You can buy used 92's on here for alot cheaper.

studderin

iTrader: (28)

LSXrT

BarneyMobile

iTrader: (4)

What was your baro reading? 105kPa tells me your DA was in the negatives which is hard to hit in the summer. Here in NJ I'm 33ft above sea level and my Baro usually reads around 101kPa. At WOT I usually see between 98 - 100 kPa one the MAP reading depending on the weather. Just curious as to how you got to 105+ kPa?