1990 FJ1200 Dyno Run

[aviationfred]

I took the 1990 FJ1200 project bike to the local Triumph dealership to do a dyno run.

The results are

106.3hp
72.7ftlbs torque

The technicians were very impressed with the curves for a 30 year old carbureted bike

https://youtu.be/q_6hy-Uzars

Fred

[FJ1200W]

I took the 1990 FJ1200 project bike to the local Triumph dealership to do a dyno run.

The results are

106.3hp
72.7ftlbs torque

The technicians were very impressed with the curves for a carbureted bike

https://youtu.be/q_6hy-Uzars

Fred

Nicely done!

[fj1289]

I want to know why you are doing a baseline dyno run!  What upgrades are planned?!

[aviationfred]

I want to know why you are doing a baseline dyno run!  What upgrades are planned?!

No big plans for the engine. Having both the 1990 and the 1995 FJ's, the 1990 seems to have much more power. Outside of pulling the head and having a look see inside the engine, I figured a Dyno run could shed some light.

With this being done, I am now thinking that my 95 is down on power even with the oversize valves. It may get a trip to the Dyno in a week or so.

Fred

[FJ1200W]

I want to know why you are doing a baseline dyno run!  What upgrades are planned?!

No big plans for the engine. Having both the 1990 and the 1995 FJ's, the 1990 seems to have much more power. Outside of pulling the head and having a look see inside the engine, I figured a Dyno run could shed some light.

With this being done, I am now thinking that my 95 is down on power even with the oversize valves. It may get a trip to the Dyno in a week or so.

Fred

Does one have the ignition advanced and the other not?

[aviationfred]

I want to know why you are doing a baseline dyno run!  What upgrades are planned?!

No big plans for the engine. Having both the 1990 and the 1995 FJ's, the 1990 seems to have much more power. Outside of pulling the head and having a look see inside the engine, I figured a Dyno run could shed some light.

With this being done, I am now thinking that my 95 is down on power even with the oversize valves. It may get a trip to the Dyno in a week or so.

Fred

Does one have the ignition advanced and the other not?

The 1990 has a Vance & Hines PowerPak ignitor box set for midrange power, while the 1995 has an OEM ignitor box


Fred

[fj1289]

Is the V&H plug and play?  If so - try it in the 95.   I'll bet that is the biggest difference with a more aggressive advance curve. 

[JMR]

You should have recorded the run....always fun. That's a solid # for a pretty much stock FJ12.  Here's my last one. Not my FJ....just my antique Honda. https://www.youtube.com/watch?v=2FeFCLBcIg8

[aviationfred]

I took the 95 in for a dyno run this morning. I was wrong with my assessment that it was down on power compared to the 90. 

104.2rwhp and 75.4ftlbs torque. The tech said that it is a bit too rich and leaning out the needles may pick up a few more HP.

My thoughts on the 95 being down on power could be that, with the upgraded suspension and zero vibrations at speed, it just feels so much more refined while riding.



Fred

[fj1289]

Nice!  Kind of "smooth is fast" at work there.



Here's selfishly hoping you start modifying one and can do step by step dyno comparisons as you go ...  

[Pat Conlon]

The tech said that it is a bit too rich and leaning out the needles may pick up a few more hp...

Fred, do you have a printout on the fuel air readings?
Normally on dynojet printouts it's at the bottom of the torque/hp  graph.