82cetuner

iTrader: (9)

Hi I have searched but cant seem to find any info or examples or dyno numbers of this.

My plan is to keep the ls2 engine I purchased stock cubed, however I plan to add cnc ported ls2 heads, and a bigger cam in the high 230s with 60x lift, I already know I will probably lose some low end power I hope I dont lose to much if there is any way I can counter this let me know.

my main concern is if I buy a fast 102 intake and tb will it be to big? and cause low end torque loss on top of the big cam.

my goal is to put together a well rounded engine that can produce me with 450whp after assuming about a 12 percent drivetrain loss.

it will be running in my 82 corvette with a 6 speed and 4.10 gears and 3000 pounds

82cetuner

iTrader: (9)

50 views and no replys? this is like the 4th question I have asked in the past week and havent had anyone answer a single one of them, what happend to all the help that i people use to get on this forum

JBarron

At some point, a bigger TB is just going to reduce the resolution of your throttle inputs, does that make sense? It may add power, but now when you give it, say, %25 throttle, it is like effectively opening the old TB a little more than %25.
Not sure if that applies here, but think about it.

silver-mod-o

iTrader: (15)

It would be a great addition with the correct camshaft and head work IMO. We've got one on a stock bottom end LQ9 (LS3 heads) in a reg cab truck that just went in the 10s full weight....its got a 100 shot on it but a pass in better weather went 11.39 n/a picked up a LOT from the 90mm truck intake setup. I know it may not be precisely apples to apples but that intake will work on those cubes. Just don't get caught up in "buying parts". Build a complete well rounded setup instead.

Neumonic2002

I picked up 20 rwhp and 21 rwtq over my ported LS2 intake with just the Fast 102 intake out of the box. I have bolt-ons, if you go with heads and cam the increase would be larger.

Redcorvette2000

iTrader: (5)

Imo.....Intake upgrades are a joke. For a grand for what you get, its absolutely worthless...I hear about gains on the net but i have ugraded to fast 102 on my ls3 and ported fast 102 w/ported matching nw on my ls7 z.....Port your stockers and spend your money elsewhere........

LS1Z28-00

iTrader: (8)

It will no doubt be a gain, but is that small gain worth 1,000 bucks? thats for you to decide but if were me i would spend my money elsewhere on the car depending on what purpose/goals you have for it.

Redcorvette2000

iTrader: (5)

It does look good under the hood too

Gordon0652

iTrader: (4)

For an example i have a full bolt on LS1 with MS4 cam. Made 401rwhp with the STOCK LS1 intake and TB tuned. Made 414rwhp with the FAST 92 and 92mm TB. Not worth the 1100$ IMO unless you are 402 or bigger. Better off with a used ported LS6.

But this is IMO with facts...

82cetuner

iTrader: (9)

Yeah I dont plan to run L92 heads, I think I am going to go with the 233/239 cam and 2.5 243 heads from texas speed. and match that with a Ported intake and a aftermarket ls2 cable throttle body. I think the stock ls2 ported intake is 93mm so maybe a fast 92 tb will do.

my goal is for about 430 wheel hp. but im also running a eletric water pump and will probably get a underdrive pully as well so I think my goal is very reachable.

maybe one day i can pickup a used 102 on the cheep, but for now ive read that the ported ls2 makes 10 or so whp

redbird555

iTrader: (14)

Listen to this guy. I'd do an ls6 intake while its TB hole is smaller than the ls2 you will still gain 10-12whp with it all still being stock the fast is only good if you have heads and a cam. A ported ls6 will outflow a prted ls2 while stock for stock the ls6 still wins.

Neumonic2002

What everyone on here is missing is this: On an LS2 ONLY the Fast 102 is a huge upgrade over the stock and or stock ported unti and the Fast is a direct bolt-on, it cost me $822 to make the switch then I sold my ported stock LS2 intake for $300 so figure it out.
An LS3 or LS7 intake to a Fast is a 10/10 gain so no I wouldn't do it either but your not comparing apples to apples either.

Neumonic2002

This is the best advice otherwise.

hivoltagedriver

iTrader: (1)

I agree. The LS6 intake that most of the LS1s came with, as well as the LS3/7 intakes flow pretty damn well from the factory. On the LS2, even a bolt-on car, can make significant gains moving from a stock intake to a FAST. I've seen the FAST 102 for sale from right around $800, then you can put your stock LS2 intake on ebay and get $150ish out of it. It is not the HUGE expense that most make it out to be.

JustAnotherLS2

Anyone have a back to back dyno for an LS2 with a 102 before/after? Preferably one that has bolt ons with stock heads/cam.

c6 batmobile

iTrader: (2)

They make great gains on any motor. The more you mods you put under it the better.

Sales2@Texas-speed

iTrader: (5)

It's not the worst bang for the buck mod people do! Think about a 383....you spend several thousand dollars, have all the downtime and labor to swap, etc all for what? 25-30hp(at peak) and 15-20ftlbs?? Whereas the intake is a 30 minute swap, under $1500, and gains you close to 20hp consistently! If you've already got heads/cam, headers, etc then I say go for it! When you look at the bigger picture, it's not as much of a waste of money like some people say!

Neumonic2002

I can provide the gains I achieved going from a ported LS2 intake to a stock out of the box Fast 102, only other change was cleaning up the tune.

LS1firebird95

Want my 2cents. Take 1500$ and buy you a dirrect port fogger.....then compare those gains to a LSx intake.. I promise you wont be disappointed!

JustAnotherLS2

Agreed.