TTI 1 7/8 race headers

[416 scamp]

Freshening motor and trans up and decided to go with the 1 7/8 race headers from TTi.. Right now I'm running tti step headers.. Approximately how many hp gain you think they should make?

 

[crackedback]

Zero.

If it made more, I'd be surprised.

 

[416 scamp]

Great!! That was a waste of money..

 

[clinteg]

Saw an article that showed going from their 3" to 3.5" collector made more power. So unless you did that, doubt you're going to see much difference.

 

[416 scamp]

The 1 7/8 have the 3.5 collector..

 

[clinteg]

The 1 7/8 have the 3.5 collector..

The 1-7/8 W2 race headers are 3" so not all have 3.5" collectors. I'm assuming you don't have W2's.

 

[451Cuda]

Are they equal length? If not, TTI really shouldn't be calling them race headers...

 

[416 scamp]

The 1-7/8 W2 race headers are 3" so not all have 3.5" collectors. I'm assuming you don't have W2's.

Sorry.. I have eddy heads..

 

[wireweld]

Do we have an answer yet? Will they make more power?

 

[Locomotion]

There are a lot of "it depends" on whether or not 1 7/8" will make more power than the 1 5/8- 1 3/4' step. In some cases the bigger headers may make more peak HP, but be outrun by the smaller headers because the smaller headers may provide a better/fatter torque/HP curve which can accelerate the car faster. The lighter the car and/or the bigger/wilder the engine/converter/gear, bigger headers may help. Can't give a blanket answer.

Personally, I have an IHRA Stock class 360 weighing 3,540+ running low 11"s in the 1/4 and very low 7's in the 1/8 mile using the TTI 1 5/8"-1 3/4" step. They are pretty versatile and being a little conservative often provides better results than being a little too big. Same applies for carbs, cams, etc.