alexus6798

iTrader: (24)

I ordered a set of ARH 1 7/8 headers but was sent 1 3/4 from WS6 store. Its really not a big deal, cause the price difference was only $20. Its just that I wanted to go ahead and do 1 7/8 to get the most out of setup, but don't know how much of a hassle its going to be to get them shipped back and wait on some more. I will call them in the morning to see what's up, just wondering how much I'm losing if I keep them?

01'SSLSX

since your not building an all out race engine it will not make a difference. I actually prefer 1 3/4 for stock cube ls1's. think about it, if a performance 427 LS7 runs the bigger set then why does a smaller 346 ls1 need something that big

got milk??

iTrader: (18)

Leaving very little honestly. I didn't pick up anything at the track after I went with TSP 1 7/8 over my Pacesetter 1 3/4 on a H/C/I 346.

alexus6798

iTrader: (24)

Yeah, I figured it wasn't too big a difference. Now I wish I would have bought the pacesetters and saved a $1000. Guess I just wait until tomorrow and see what they say though.

ULTIMATEORANGESS

iTrader: (4)

really? thats surprising. even after a tune?


if ARH will pay for your return shipping which they should id go bigger. why not. when you start modding more youll be glad you did.

alexus6798

iTrader: (24)

Yeah, i dont wont to regreat it later. Going to wait and see what they say.

raysadude

iTrader: (11)

If you don't want to regret or always second guessing your headers then wait and get the 1 7/8" one.

TImmy_Jones

iTrader: (4)

The 1 7/8" headers make a little more power on a totally stock engine....that gap increases as you mod. Get the 1 7/8" headers and do it right.

bww3588

iTrader: (49)

There is A thread on here proving this statement totally false. The larger headers actually gain a decent amount. Given the small price difference, the HP/dollar ratio is pretty stout.

The larger headers will leave you room to grow. If you decide to stroke it or supercharge it later on, the smaller tubes will quickly become a restriction.

therabidweasel

iTrader: (5)

The thread I have seen (and reposted) has shown something like +7hp and -7tq but it was pacesetter IIRC and tsp headers...not apple's to apple's.

01'SSLSX

thats your opinion, your not proving anything with just a statment like that..
oh & look at post #3 again, this is the kind of results ive seen at track and dyno sessions

BigBirdLS1

In my case I've got pacesetter 1 3/4 headers. I'm pushing 523rwhp on a 346ci H/C nitrous car. I asked my tuner who is very well known in the southeast about the bigger header thing and he said that in my situation my restriction isn't the exhaust it's the LS6 manifold and TB.

alexus6798

iTrader: (24)

Thats good to hear. I already have a 90/90 ready to install.

dr_whigham

iTrader: (49)

Just get the 1 7/8" and be done with it. It's been proven and beaten to death on here in the past. The only people that actually lose power are the C5 crowd, and that's from the primary length / collector location and nothing else.

BigBird, you'll make more power being an H/C/I car, let alone the nitrous, with bigger primaries. Agreed your TB and intake are a restriction, but the primaries are as well.

alexus6798

iTrader: (24)

Yeah, I'm just waiting on WS6store to get with me now.....

Guitar

iTrader: (9)

It's not an opinion. It's fact. 1 7/8 make more power on a stock motor and up.

alexus6798

iTrader: (24)

Well guys, looks like I was wrong. When I measured the headers I measured from the inside and ARH told me I should have measure outside primary size. Now I just need to shine them up and get them installed.

01'SSLSX

im just stating what I have personally seen with these exhaust parts, but sorry i cant just take your word as Fact..lol
i have read that some companys have done comparisons where the bigger headers were better but personal company gain could be a factor

fwiw my camaro makes 425hp 390tq on mustang dyno i have pacesetter 1-3/4 headers, 233/239 cam, ported/milled 243's, fast 92, 4.10 gears with 28" tall drag radials & much more

but what do i know...

bww3588

iTrader: (49)

Your doing exactly what everyone else is doing, except your claiming your opinions as fact with nothing to back it up except "personal experience", then turning around in the same sentence and calling everyone else's "personal experiences" opinion.

The fact of the matter is, you have "personal experience" with no credible proof, and we have the same, but with an entire forum with solid proof that backs our "opinions" up.

You have done nothing but state your opinion as fact and tell me that my opinion is just that, an opinion that cannot be taken as fact.

dr_whigham

iTrader: (49)

Good numbers. And I also guarantee you if you sold the 1 3/4" headers and bought a set of 1 7/8" you'd see a healthy gain from midrange and up.

Nobody is saying 1 3/4" is ****, LOL! Just that there is some more power to be had from the 7/8's. C'mon man. You're an HCI car.