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TR6 Dyno your TR6

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Well, my engine had a "bench break-in", which pretty much broke-in the cam. My engine guy said that I should "drive it like I normally would". I'm just giving it a little time to loosen up a little, maybe 1000 miles on it before I dyno it (I've got 300 now). I have absolutely no idea what this thing will dyno. I would be pretty happy with 150 at the wheels, but I have a bit of tuning to get to that point.
 
150 at the wheels! That would be great, whats your motor got in it? Factory rating is like 106 at the flywheel I think for a US spec car. 150 at the wheels would be a nice jump.

I'd love to run my car on a dyno, but I'm not sure it could turn the roller! /ubbthreads/images/graemlins/jester.gif
 
Scott,
To be honest I doubt my engine will get to 150, but to that end, I'm running a balanced assembly with a GP2 cam, 10:1CR, roller rockers, triple ZS carbs, electric fan (I removed the stock fan), headers and a lightened flywheel.

Realistically, I'm probably looking at the 135-140 range. As a last resort I'm thinking about getting some racing stickers and slapping them all over the car. I think that should put me over 150.
 
Shannon,

[ QUOTE ]
As a last resort I'm thinking about getting some racing stickers and slapping them all over the car. I think that should put me over 150.

[/ QUOTE ]
Thats it man, way to go! /ubbthreads/images/graemlins/thumbsup.gif

Sounds like a nice setup for the street, very similar to the way I'm hoping to build my motor when the time comes. I'm doing the electric fan upgrade this summer. Can I ask you, how do you like the triple ZS setup? I'm very close to pulling the trigger on getting it myself. Almost bought a spare carb the other night off Ebay for the third one. My friend has this setup on his TVR 2500M and loves it, says it really changed the character of the engine. He had Webers on the car, they were on it when he bought it, but it turned out to be way to much carb for a basically stock motor, plus tuning them was a bit of a beast. He's much happier with the triple ZS setup, but I wanted to hear if others have had as good an experience with them as he did. Did you get the kit from Goodparts?
 
Scott,
This is the Goodparts manifold. After I finally got the linkage all figured out, I absolutely love them... and now that I don't have that jet engine of a fan blowing all the time, I can actually hear the intake. With the GP2 cam, it has a very linier power curve from right above idle to readline. Just make sure your carbs are rebuilt, I would hate to have to tune three carbs in different states of repair.
 
oh, oh, lets have a contest to see who can get the closest to Shannons actual HP when he dynos it. I am thinking around 120-125, so for contest purposes lets say 123. I hate to sound like a buzzkill but I don't think that realistically you will be able to make the 140 mark, on the bright side though, I have a good idea to go along with your racing stickers, a huge ugly wing on the back that'll help get the horses up around 500.
 
Shannon, that good to hear, the triple ZS setup is a mod I'd like to go with sometime soon. I rebuilt my present two carbs last year, new shafts, butterflys, the works, and they've probably only got 600-800 miles on them to date. Putting a fresh rebuild on a third should give me pretty even performance all the way across. Do you have any other head work on the car other than the roller rockers? I'm thinking specifically port work and larger valves. I guess if not it's not to hard to go back and do that at some point if you wanted, the head in these cars are relatively easy to get in and out.

I have no idea what number he's gonna get on the dyno, I've not enough experience with these engines to make an educated guess, so anything I throw out there will be just that. I think putting a big ricer wing on the back will probably pancake out the rear suspension on these cars though from the added weight, unless he's running big springs. I've heard a big fart can on the exhaust will shave half a second off in the quarter though. /ubbthreads/images/graemlins/thumbsup.gif
 
I'll guess 125 at the wheels.

Unless you add a 5 inch "coffee can" exhaust with laser etched flames (ala J.C. Whitney), then I'd expect at least 600 hp.

Cheers!

Alan
 
It might very well be 120-125. If it were a Mustang, I could probably be a lot better at my estimating, but I'm pretty new at the Triumph thing. I got the 135-140 number by comparing other TR's with similar mods. I used a 1/4 mile trap speed/weight/horsepower calculator thats been pretty darned accurate in the past. Heck even Dyno's can vary greatly from one to the other.

I drove the car most of the weekend and man it's starting to feel good!
 
sounds great, thats good that you are liking the tri carb set, up, I've worked on a 6 with that set up and it is a sweet running car, much nicer than twin carbs, even twin webers.
 
I'll guess 110, not because I'm a spoil sport but because last time I ran my TR4a it did 91 rwhp, so I think we tend to be optimistic when we estimate these things!
A guy I know with a 1972 240z made 107, this car was claimed to have 151 bhp at the clutch, and an Austin Healey 3000 did 96 rwhp just before my Triumph.
A real 110 at the wheels is pretty good going in my opinion; still hope you get more!
Simon.
 
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