jak2908

iTrader: (1)

I'm sure this has been asked before but I want to know if spending the extra money for the TSP headers is worth it over the Pacesetters, by worth it I mean in performance gain, does anyone know???

devious

iTrader: (1)

I really like the TSP headers, the TSP headers are 1 7/8" compared to Pacesetters 1 3/4.

Magnet

iTrader: (36)

It is really hard to get clear info, but I would really like to know if there is ANY gain from switching to 1 7/8ths on a bolt-on only car.. from what I have seen they don't hurt, but gains don't seem to be proven..

devious

iTrader: (1)

I agree with you, at least having the bigger headers will allow you to grow into them. They'll really shine on H/C/I cars!

Magnet

iTrader: (36)

If I could pick up any power at all I would make the switch.. 5hp is big to me right now

SSmokin99

iTrader: (7)

Yes, on a bolt on car 1 7/8 does make more power than the 1 3/4. It's been proven.

skimms98

iTrader: (7)

I just bought my 1 7/8 TSP's so I'll let you know soon!

reeperz28

iTrader: (1)

the 17/8 all the way in my opinion one guy had a 10 hp increase on his heads cam fast 102 346 ci camaro going to the bigger tubes and 18 ft lbs

https://ls1tech.com/forums/dynamomet...p-426rwtq.html

Magnet

iTrader: (36)

Any link to the proof? I'm not a hater, I would love for it to be true

MikeWS6

Both are quality Brands. I bought the kit and I love it. (Pacesetter LT's, Texas Speed Y)

Magnet

iTrader: (36)

any proof/ opinions on 1-3/4 vs 1-7/8 on a stock internal car?

sjsingle1

iTrader: (1)

TSP posted a dyno log somewhere...so yes.......its been proven......1 7/8 FTW !!!!!

99Bluz28

iTrader: (35)

Yeah, do a site search, and a Google search, read, read, then read some more, then decide what you want to believe.

Google search this: 1-3/4 vs 1-7/8 headers on a stock internal car

Magnet

iTrader: (36)

Well I have already seen this which is good info, but I was looking for anything else

HERE

99 Blue Bird

iTrader: (3)

when my car was running it was all stock but a lid 1 7/8 TSP headers and true duals and ran 12.9's at 109 mph. when it was ALL stock it ran 13.90s at 98, or 99 mph. i also had SLP 1 3/4 headers and y but never got to take it to the track. but i swapped to the tsp's and it felt night and day.

Sales2@Texas-speed

iTrader: (5)

Like the link in post #14 shows, the 1 7/8" headers will make better power from about 2000rpm all the way to redline, even on a basically stock 346ci!

jak2908

iTrader: (1)

this really has me in a pickle...because i was JUST gonna order the pacesetters..and then i checked my thread...$#!&

MikeWS6

Which size headers come with the tsp/ pacesetter lt/ory kit?

jak2908

iTrader: (1)

Tsp 1 7/8 pacesetters are 1 3/4...and I also found some hooker 2291s on ebay for 500..now what?!?!

MikeWS6

I dynoed 358 with the pacesetter lts, lid, and catback. I could be wrong but I dont think I would have gotten more with the tsp headers...