slowjoe99

iTrader: (7)

My car will have an MS3 cam and CNC ported LS6 heads from Texas Speed after I get them installed. I know that if I want to get full potential out of these mods I need a better intake and throttle body. I was originally going to wait for the new intake from Weiand that's supposed to come out in March and also get a 90mm TB, but with all my current mods costing so much I was wondering if it would be worth the extra money for those. Or would I be better off getting an LS6 intake and get it ported along with porting my stock TB?

james562

iTrader: (35)

just grab a run of the mill LS6 intake for now, save your money towards a fast/new weiland setup....

best 300 bucks you'll spend on that H/C car

stealthy_2005

With the new Weiand intake and 90mm throttle body what size injectors would you need? Not trying to hijack.. just curious

WhosNXT

Factory injectors are fine for a mild to medium setup. Injectors are not a must have until your making big power.

BLACK2001SS

Well if you dont have a ls6 intake now I would get a fAST for shure if you had a ls6 intake then I'd say unless you plan on nitrous go with the tpis 90 mm modification to your ls6 and get a 90 tb its 300 for the intake mod and near 500 for the 90 TB and I've reserched it and flow wise the fast isnt that much better at all. so you will save $ 500 bucks going the tpis rought but like I said if you have to buy a ls6 anyway screw it thats 3 to 400 for a ls6 right thier then the mod and tb puts you at what a fast is going to caust you. have to do the coolant mod too buy the way $5 buck for extra hose.

Bad Blue WS6

iTrader: (41)

you cannot port a LS6 intake, its a one piece design, cant take it apart, the openings are surrounded by the seals, or gaskets, and they already match the openings for the TB,,,so even if you did grind out some material,,the TB is only going to go so far.

BLACK2001SS

Take a look at TPIS if you have a ls6 and want to save 500 on an intake if you are staying NA.

slowjoe99

iTrader: (7)

it's not a money thing, I have the money I'm just wondering if it's worth it over an LS6. Anyone know how much diff to expect?

james562

iTrader: (35)

for now run the LS6 intake, its definately noticeable over the ls1 piece
and sell it when its H/C time. Theres always a market for the LS6 manifold

Then buy a Mamo Ported 90/90 setup after/at the same time you do your H/C package and expect to pick up 10-18RWHP over the LS6 for about 1200-1400.00

TORCHD 02 TA

iTrader: (39)

depending on what cam and set up he has. with the cam in my sig, i need bigger injectors. My duty cycly is at 98% which means my injectors are constintaly spraying and working hard. You want the duty cycly to be ~80%

Get bigger injectors you will be fine with SVO 36#......

black01_WS6

iTrader: (13)

you could always get some GTP injectors as they are 38#'s stock.

RiskyZ28

iTrader: (7)

stay with what you got and when you do the heads and cam do the ported fast 90/90. then you will really notice a power increase

teke184

iTrader: (5)

install the LS6....

your combo will operate much better, and later down the road when the new intake comes out (or you decide on a FAST), you can swap it out.

the advantage is that the LS6 intakes don't depreciate in value much. so $300 spent now, will get refunded in 6 months if you decide to swap.

although...if money isn't the issue...why not step up to the FAST...with that h/c setup...you'll make killer power...probably 15hp more than the ls6, more if ported.

DANOZ28

iTrader: (1)

hello, i just picked up this book dyno proven ls1/ls6/ls7 performance and while i knew the basics (great book if your thinking blower / turbo /nitrous) it covered some intake combos. weind only gained 12, bbk 85mm gained upto 20, of coarse the fast was the best but costs the most. just my 2 cents

BLACK2001SS

If your thinking blower nitrous or turbo go with somthing strong who gives a crap about 5 hp when your intake blows up because you bought a plastic( composit what ever) one haha.

turbogarrett

iTrader: (8)

If you remove the valves from a ported stock casting head and bolted on the ls6 intake, there is actually quite a bit of material to remove for a smooth transition. Yes, you can port it, but if the heads are still on the car I would probably leave well enough alone.

Another cost effective option would be a used fast 78/ pro products 85mm tb.

slowjoe99

iTrader: (7)

When I was asking about the Weiand intake I meant the one that is 90mm and coming out in the spring... not any intake they have now...

anyone know how much to expect to pay for a 90mm TB??

Viper

iTrader: (6)

"anyone know how much to expect to pay for a 90mm TB??"

$375-$500

Bad Blue WS6

iTrader: (41)

This would be port matching,,,and with the lil seals there on the LS6 intake, you would not have much room to do that without screwing up a seal

slowjoe99

iTrader: (7)

if I get a 90mm TB and intake, how big is the MAF?