Carguy8888

iTrader: (1)

I was starting to think about a ls6 intake but I am going to keep my stock exhaust manifods & cats. Emissions in NY are a pita (what a suprise) & I dont want the hassle every year. If I by a legal type (I think) high flow cats & headers it will be a fortune. I do have a cat back for the rear half. With the stock part of the exhaust choking the car will the intake be worth it?

Zlow28

iTrader: (11)

Still a good mod IMO.

FiredUpZ28

I would do it. Stock exhaust doesn't choke as much as youd think.

Carguy8888

iTrader: (1)

Awesome thanks guys. Roughly what kind of s.o.p. seat of pants would I feel is it a big difference? Also I guess I would have to do a Frost retune?

RPM WS6

iTrader: (3)

An internally stock LS1 with stock manifolds and cats won't see any big gains from an LS6 intake swap alone; you probably won't actually feel much of anything at all. With the intake + tune though, there will be more of a difference.

ULTIMATEORANGESS

iTrader: (4)

intake and exhaust work together as you know.

i noticed nothing from an ls6 intake on my stockish car at that time.

99 ss

iTrader: (12)

I felt a pretty big differince with my ls6 intake swap I still have stock heads and sock Exhaust manifolds and stock cam

Carguy8888

iTrader: (1)

I would have Frost retune it, basically w/ a stock cam and heads its a small gain if any? So i'm dreaming thinking the intake and porting the tb would make me feel a decent difference?

black79transam

Did mine this year. Only performance mod was a lid. Noticed a difference right away. Most of it is throttle response though.

Was worth it for me.

Fwiw I think it was high performance Pontiac that did an article on this swap and gained like 18hp at the wheels on a stock car with stock tune

RPM WS6

iTrader: (3)

It would be a small difference by itself on an otherwise stock car. Combined with a tune, you would feel/see more of a gain. I remember back in 2001, some of the first guys to install LS6 intakes on their otherwise stock '98-'00 cars didn't see any change in track performance at all.

Once you combine the LS6 intake with other bolt-ons (such as headers, TB, etc.), and especially with internal engine modifications, you will see noticeably more improvement from it.



18rwhp on a 100% stock LS1 and stock tune? That is a fantasy.

ULTIMATEORANGESS

iTrader: (4)

id like to see that article.


LS6 intake on a stock motor wont have much of a gain.

nova 71

dead on about the stock exhaust i have friend that has the same car as i do 1999 camaro only difference is long tube header and after market on back. our best times his 13.09 mine 13.12 on the same night. only mods for both are 2200 stall and slp air lid.

black79transam

http://www.highperformancepontiac.com/tech/
hppp_0607_1999_pontiac_trans_am/viewall.html


This isn't the article I was thinking of (will search my stack of mags later) but this article shows gains albeit to a lesser extent that I i said I remember. The article I read was where they took a stock car, did the modification and saw iirc 18whp. Now I would not say that's the norm(obviously). However I most definitely felt a difference in my lid only car.

EDIT
sorry the crack must of been extra potent this morning because I combined two articles haha. The higher hp numbers came from the article I read where hpp took a stock ws6 and tuned it.

http://www.highperformancepontiac.com/tech/hppp_1209_2001_pontiac_trans_am_performance_upgrad e/viewall.html

RPM WS6

iTrader: (3)

So it seems that the actual gain for the intake only was 7hp (Interestingly, the air lid was actually worth more power than the LS6 intake swap. ), which is much more believeable, and also not enough to have any big effect on SOTP feeling. As seen by the replies in this thread, more sensitive people might notice some difference, while others' won't notice much if anything at all.

Either way, one should not expect a big difference from this modification alone on an otherwise stock car. It's just one part in a series of bolt-ons that together can definitely make a big difference. The OP had mentioned getting a tune + intake together; this will deliver a bigger overall gain that should be a little more noticeable.

This comparasion doesn't work. Too many possibile varibles between two different cars and two different drivers. Put those LTs and catback your car, tune it for the new exhaust and, assuming your car is running correctly and has proper traction, you'll see a much better gain than just 0.03 seconds.

Carguy8888

iTrader: (1)

Interesting, with that i may put it to the back of the list and do a 35mm front sway bar first. With the few mod in my sig the car runs great but like many here always looking for more lol. Not ready to do any internal mods.

garygnu

you can do a ls6 intake swap with no retune .the ported TB is a good ideal.

2000 TA owner

iTrader: (1)

converter and never look back you will get all the SOP s your looking for

Carguy8888

iTrader: (1)

I bet it would but it's not for me.Ty.

Carguy8888

iTrader: (1)

What is the part #(s) or vehicle list to lok for the intake?

RevGTO

iTrader: (12)

Your EGR will go away with an LS6 intake. I don't know if you have visual inspection like CA, but if so, you will fail.

I don't remember if I did the swap before or after LT's, but I gained better throttle response, more torque in the mid-range, and IIRC, .05 at the track,.