Use of TTI headers

[Steven190]

I posted years ago about dimpling an A body and got crap. I dimpled the number 1 tube for clearence of the torsion bars on the left side. Well. I am doing another A body Duster and got a new set of TTI headers for it. In my amazment the number 1 tube is set back some for this cleareance from the number 5 tube. The number 5 tube is already dimpled from the factory for this clearance.
My conclusion is that the headers are really not the same and may differ some. I posted this for FYI to all those who are thinking about TTI and what to expect.

 

[A56]

Or they received enough complaints and made some adjustments.

 

[AJ/FormS]

My conclusion is that the headers are really not the same and may differ some. I posted this for FYI to all those who are thinking about TTI and what to expect.

Good to know.

 

[krazykuda]

Or there could be variation in the builds for the bodies...

 

[4mulas]

My engine is centred properly and the correct height, the TTI’s I have also have the number 5 tube pre done from tti AND I still had to dimple number one somewhat to prevent it from rattling against the torsion bar. The motor rocks pretty good, maybe a tamer smoother small block would have been a non-issue

 

[A56]

My engine is centred properly and the correct height, the TTI’s I have also have the number 5 tube pre done from tti AND I still had to dimple number one somewhat to prevent it from rattling against the torsion bar. The motor rocks pretty good, maybe a tamer smoother small block would have been a non-issue

or solid motor mounts

 

[Keith Mopar]

In all the A body Mopars I've put headers in over the years I've had to do more than a 'Dimple" in a few sets of headers. Feel good about a small dimple!

 

[RustyRatRod]

Doesn't TTI have recommendations for which mounts to use, as well as correct engine placement for their headers?

 

[RustyRatRod]

In all the A body Mopars I've put headers in over the years I've had to do more than a 'Dimple" in a few sets of headers. Feel good about a small dimple!

Some of the best fitting headers I've ever had on a A body were the old Summit headers bent like Hedmans. They hang low, but as long as you run stock ride height and stock front tire height, you have plenty of ground clearance.

 

[rumblefish360]

Some of the best fitting headers I've ever had on a A body were the old Summit headers bent like Hedmans. They hang low, but as long as you run stock ride height and stock front tire height, you have plenty of ground clearance.

Ditto!

Summit racings 1-5/8 standard looking street header has always been the best fit.
TTI has been the best fitting next tube size up header for my A bodies. In my B & E bodies, Hooker Super Comps at 1-3/4 have always fit the best, period! They are not that standard header shape.

 

[RustyRatRod]

Ditto!

Summit racings 1-5/8 standard looking street header has always been the best fit.
TTI has been the best fitting next tube size up header for my A bodies. In my B & E bodies, Hooker Super Comps at 1-3/4 have always fit the best, period! They are not that standard header shape.

And the thing is, there probably isn't 20 HP difference between those and the high dollar ones. Arguments incoming. lol

 

[crackedback]

The dimples and flattening don't really change anything in regards to the header or performance. These cars stink for variations and tolerance stacking when built. Clearance them cleanly, no big deal.

I'll pass on the hang lows, not my jam. Flattened way too many over the years on roads around here with deep cut gutters. Wanna fight...

 

[Steven190]

Some of the varation come from the fact that the tubes will move during welding too. This is the nature of welding tubes. I just found that to be interesting. That one person has a set the fits and one that the fit sucks. Also is the fact that the tolorance of the cars ,at that time were + or - 1/4".

 

[dartindanno]

Summit headers fit on my 70 Dart with no hammer needed

 

[mbaird]

1 7/8 - 3.5 collector TTis on my 69 Dart . First perfect .

 

[Newbomb Turk]

And the thing is, there probably isn't 20 HP difference between those and the high dollar ones. Arguments incoming. lol

On a 400 hp 340 the 1 5/8 x 1 3/4 TTI headers were down 9 hp to a cheap set of Hookers. The TTI’s were down 13 to my 1 7/8 Hookers.

And they were down everywhere, not just peak power.

They both would have been down more if my lazy *** would had added some primary tube extensions and if I used 3 inch instead of 3.5 inch collectors.

I’m going to test them one more time when the engine is back in the pump at 395 inches and with a better cam.

I’ll also test the big Hookers against the Hedman Hustler 1 7/8 headers when I do it.

I suspect the TTI’s will be down 25. Maybe more.

 

[RustyRatRod]

On a 400 hp 340 the 1 5/8 x 1 3/4 TTI headers were down 9 hp to a cheap set of Hookers. The TTI’s were down 13 to my 1 7/8 Hookers.

And they were down everywhere, not just peak power.

They both would have been down more if my lazy *** would had added some primary tube extensions and if I used 3 inch instead of 3.5 inch collectors.

I’m going to test them one more time when the engine is back in the pump at 395 inches and with a better cam.

I’ll also test the big Hookers against the Hedman Hustler 1 7/8 headers when I do it.

I suspect the TTI’s will be down 25. Maybe more.

But people just GOTTA have the latest and greatest as if NOTHING else has existed all this time.

 

[340Dart]

On a 400 hp 340 the 1 5/8 x 1 3/4 TTI headers were down 9 hp to a cheap set of Hookers. The TTI’s were down 13 to my 1 7/8 Hookers.

And they were down everywhere, not just peak power.

They both would have been down more if my lazy *** would had added some primary tube extensions and if I used 3 inch instead of 3.5 inch collectors.

I’m going to test them one more time when the engine is back in the pump at 395 inches and with a better cam.

I’ll also test the big Hookers against the Hedman Hustler 1 7/8 headers when I do it.

I suspect the TTI’s will be down 25. Maybe more.

I had different results. Didn't have it on a dyno but on track results. I had Hooker Super Comp 1 5/8 headers on my 340. Went to the TTI 1 5/8 x 1 3/4 and it was a tenth and 1 mph faster.

 

[jbc426]

My '70 E-Body had 2 1/8" Hooker Headers on it when I bought it in 1978. They always leaked at the flange. One day my buddies dad, and aircraft builder, welded up the flanges and welded 1/4" square stock to them to help stiffen the flanges. I remember the sound each tube made when he was grinding the gasket flange surface flat. It was the exact same sound on each tube, as they were equal length. Hence the name tuned-headers.

Back then the Hooker flanges were thinner and tended to warp if over-torqued, same as today too, but the flanges tend to be thicker these days.

 

[Newbomb Turk]

I had different results. Didn't have it on a dyno but on track results. I had Hooker Super Comp 1 5/8 headers on my 340. Went to the TTI 1 5/8 x 1 3/4 and it was a tenth and 1 mph faster.

Interesting. I’m not 100% sure the 1 5/8 headers are Hookers. I can’t see a number stamped on the flange, but the only headers of that era I know of that had the collector flanges welded on were Hookers.

They may be something other than Hookers.

I would like to test a set of Doug’s 1 5/8 headers next time and a set of 1 7/8 TTI’s.

 

[33IMP]

And the thing is, there probably isn't 20 HP difference between those and the high dollar ones. Arguments incoming. lol

Well, imo on a VERY serious engine the bigger headers MIGHT be worth 20 over the summit ones, (maybe).......
but I'll bet there's not five hp between TTI's and summits on 400 horse motor. Again, my opinion.

 

[Muad'Dib15]