tntsuperjet
Tntperformance-engineering.com
- Location
- Georgetown ca
There are 3 production TNT pipes that where made.
There was also more then 20 test pipes built, some of which didn't work and where thrown out or given away.
Some of these pipe I have been showed pictures of and asked what model.
None of the pipes are marked, shame on me.
So word to wise from the builder, find out what pipe you have.
Because some of them are total ducks in the water!!
Now, because my email box blew up with some nice words and appreciation for my time I thought would give you another go.
But let me be very clear.
I don't build bling, nor do I build a pipe that will make every possible motor and setup combo go wow.
What I do build is quality pipe that with the engine specs it was designed for out performed everything we tested in it's day 92-97.
Here is what we know, if you have port timing that is over 133 transfer and 205 exhaust, you may not want to try a TNT pipe!
If you run compression at 200psi or above, I am asking you not to test one as it's gonna kill your motor!
But if you have stock port timing to 130-200
with 130-190 compression, you should try one.
If you want hard hit and no upper mid or top, find limited chamber.
If you want usable strong mid and top find stroker chamber.
If you want smooth strong power that can rev to 7900rpm find superstock chamber.
Here what they where built for.
SS chamber, 128-198 85mm bore 190psi superstock motor using 15/19 prop with 82mm nozzle.
Stroker- 5mm 62t case 82mm bore 126-200 170psi 16/19 prop with 81mm nozzle
limited- stock 62t with duel carbs, 15/19 prop 180psi comp.
Those are the base designs for all the production pipes.
Hp.
On 61x case, 61x cyl 4mm stroker
94hp FPP mod chamber
96hp FPP limited chamber
108hp TNT stroker chamber
peak hp was 6750 rpm!
62t 6mm 128 rod stroker 81.5 bore
c200 TNT setup was 144hp at 7110rpm
with SS chamber
62t 8mm stroker, 81mm flat top, powervalve
162hp at 7350rpm super stock pipe.
Just for record, the 6mm motor was fastest radared boat ever build by me.
64.7 in square nose!
8mm best speed was 62.5 mph. And had 20 more dyno numbers!
After month of testing in my boat never matched speed of 6mm 128 rod boat
the power was smoother and was less effort to ride.
6mm hit hard and was un ridable for me! Or jeff Jacobs had to make carb version for him in 94 and it went 57mph at 94 world finals.
There was also more then 20 test pipes built, some of which didn't work and where thrown out or given away.
Some of these pipe I have been showed pictures of and asked what model.
None of the pipes are marked, shame on me.
So word to wise from the builder, find out what pipe you have.
Because some of them are total ducks in the water!!
Now, because my email box blew up with some nice words and appreciation for my time I thought would give you another go.
But let me be very clear.
I don't build bling, nor do I build a pipe that will make every possible motor and setup combo go wow.
What I do build is quality pipe that with the engine specs it was designed for out performed everything we tested in it's day 92-97.
Here is what we know, if you have port timing that is over 133 transfer and 205 exhaust, you may not want to try a TNT pipe!
If you run compression at 200psi or above, I am asking you not to test one as it's gonna kill your motor!
But if you have stock port timing to 130-200
with 130-190 compression, you should try one.
If you want hard hit and no upper mid or top, find limited chamber.
If you want usable strong mid and top find stroker chamber.
If you want smooth strong power that can rev to 7900rpm find superstock chamber.
Here what they where built for.
SS chamber, 128-198 85mm bore 190psi superstock motor using 15/19 prop with 82mm nozzle.
Stroker- 5mm 62t case 82mm bore 126-200 170psi 16/19 prop with 81mm nozzle
limited- stock 62t with duel carbs, 15/19 prop 180psi comp.
Those are the base designs for all the production pipes.
Hp.
On 61x case, 61x cyl 4mm stroker
94hp FPP mod chamber
96hp FPP limited chamber
108hp TNT stroker chamber
peak hp was 6750 rpm!
62t 6mm 128 rod stroker 81.5 bore
c200 TNT setup was 144hp at 7110rpm
with SS chamber
62t 8mm stroker, 81mm flat top, powervalve
162hp at 7350rpm super stock pipe.
Just for record, the 6mm motor was fastest radared boat ever build by me.
64.7 in square nose!
8mm best speed was 62.5 mph. And had 20 more dyno numbers!
After month of testing in my boat never matched speed of 6mm 128 rod boat
the power was smoother and was less effort to ride.
6mm hit hard and was un ridable for me! Or jeff Jacobs had to make carb version for him in 94 and it went 57mph at 94 world finals.
~