BoricuaHec01

If your a baller, Fast. Tight on cash, LS6.

thunderstruck507

iTrader: (18)

One anomaly does not represent the norm though. I can think of a guy off hand who went from the ls6 to a fast and picked up 35rwhp. Doesn't mean that is the norm either. But 15-20rwhp on a head/cam car is much more ordinary.

There are variables: head flow, cam profile, rpm range, tune, same dyno?, same SAE correction?, same conditions?, is there a restriction in front of the throttle body?

Can a car make up to 450hp with the ls6? Sure, it could make 450rwhp with the ls1 intake if you really tried. But I don't think anyone would argue the ls6 isn't worth installing.

thunderstruck507

iTrader: (18)

My Fast 90mm with stock injectors/rail was $450 plus shipping. Used tb was ~$150 shipped.

Just have to look around sometimes. Sold my stock ls1 intake and stock ported tb and the extra rail/injectors. Ls6= $300, so for ~$150-175 more I got a used fast 90/90. Would I pay full price for what I do with the car? Hell no. But that's why we have a classified section.

Badmeat

iTrader: (1)

Agreed.

TB - Intake Manifold - Heads

If all 3 don't flow the same, one is being a bottleneck to the airflow. Sure, you'll likely see gains if you change one of the three, but it's all relative to the other two as to how much you gain. Just depends if you feel the $$ is worth the gains.

BoricuaHec01

Ya I def need all my parts brand new, but if I do see a FAST in good condition under classifieds or craigslist, I'll def take a look but extremely hard to find in my area.

NC98Z

iTrader: (1)

I would be looking for a used Fast 90/90 setup. I think in your case that a Fast 102/102 setup would be overkill. You only have ported heads and a medium sized cam. I picked up over 27rwhp going from a LS6 to a Fast 90/90.

Blk98Vert

iTrader: (2)

No way, you are leaving a solid 10 on the table with your 90/90 on that combo

504ls1

iTrader: (1)

I just switched from a ls6 to a ported fast 92/92. If I cam remember to come back here next Tuesday after I get tuned I will let you know what I pick up. Im also a h/c car

ls11998

I have a fast 92mm with a ls2 tb made big differences over ls6 intake and tb

lemons12

iTrader: (71)

He is listening, you are just wrong.

An ls6 won't "lose" Rwhp on a 450Rwhp but it is NOT anywhere close to making the most Rwhp on that type of setup, you are leaving a MINIMUM of 10Rwhp on the table at that point.

You show me ONE dyno where the guy only picked up 3Rwhp and I will show you 20 dynos where people made double digit gains.
At 450Rwhp on a H/C Ls1 you are damn straight I will pay 1,000$ for 10Rwhp, WELL worth it. At that point, there isn't much left you can do to make a gain like that.

A FAST 102 on a bone stock car would make that gain.

I installed a ported 102 intake that was absolutely butchered by the ported, as in it probably hurt the flow. Before the tune I gained 14Rwhp, this was on a hand ported 317 heads and a baby cam setup making 377Rwhp before the swap with an ls6 intake (cam was specd for the ls6 intake). If I had a larger cam or heads that flow better (or hell a decently ported intake) the gains BEFORE the tune would have been extremely close to 20Rwhp. The torque gain was extremely nice also.

Blk98Vert

iTrader: (2)

Thanks lemons. And ws6 man why don't you call up BBK and ask them how much their manifold made over an LS6. I know for a fact the 102 will gain under 450 rwhp because again go look at when GM hogh tech tested it on a motor making 450 at the crank which was an LS with headers and a mild 224/230 cam. They gained double digits in both hp and tq over the LS6. So where is your argument now?

thunderstruck507

iTrader: (18)

Like I said in previous posts, I suspect the guy who only gained "3rwhp" if it was even the same dyno same day had some other restriction in front of the intake or in the exhaust.

My6speedZ

iTrader: (18)

I see no point in running the 102/102 combo unless you have a FTP lid and/or a 100mm MAF or going SD tune. I know the stock MAF has seen people running 550 to the wheel, but I was concerned with eliminating any choke points or restrictions and shooting for the straightest path into my throttle body as possible.

watman02

iTrader: (9)

How much you want for your ls6 intake?

MikeWS6

Because they would admit an ls6 makes more power than their bbk?



OP- Spend your money on something else.

lemons12

iTrader: (71)

Even independent tests have proven the BBK setup makes more than ls6 setup.

Wanna solve intake issues? Buy a blower, FORCE that air in there!!!

Blk98Vert

iTrader: (2)

Yep, everything else just beats the LS6 on the top end

ws6man29

iTrader: (1)

THEN SHOW ME THESE TESTS!!!!!!!!!!!!! if they even exist and If its a reliable source then I will say you are right but do not just throw out there BBk is better than Ls6 because it is offered as a aftermarket bolt on that claims 17 rwhp over a ls6 setup Lets face it we all know these performance part stores all beef up their rwhp claim to get us to buy the parts.Its a marketing thing.Really buy my MAF and you will gain 20 rwhp come on get real they just want our money and their is people out there stupid enough to buy the false horsepower claims."""""""""I sell these parts on a daily basis""""""""" and I can tell you all the manufactures exaderate their claims here is Bbks claim

•Provides 18-24 Horsepower Increase On Stock LS1, 12-15 Horsepower Increase On Z06

They also do not tell you the intake weighs 34 lbs compared to the 8lb ls6.They do not tell you that you can fry a egg on their intake a 1/2 hr after you shut the car off either.

thunderstruck507

iTrader: (18)

https://ls1tech.com/forums/generatio...vs-fast92.html

Also see post #27 here:
http://www.ls1gto.com/forums/showthread.php?t=347366

Here's a mag test:



Other easy to find info on here:



IMO the BBK vs ls6 isn't enough difference to fight over. I prefer the black plastic look anyway.

ws6man29

iTrader: (1)

Thunder,I agree with you that they are almost identical and would prefer the black one also.Here is a quote from the link you posted.Also from that link the tester said the BBk had only 5 rwhp more than the ls6 so I guess if you get a good deal on the ls6 get it!Plus the advantages of not having a metal intake for heatsoak and weight is also a factor.So my opinion is ls6 over BBk SSi

"""""I'm mixed on this. If I had a stock TB and a LS1 intake, I would buy a BBK for sure. Unless I found a LS6 intake cheap, like $250 that dosnt happen much. Most are $330-350. A BBK 85mm intake is only $399 at NewEra were I got mine. So thats a good deal if you have a LS1 intake still, its 5whp more then a LS6"""""""""""