Unrealistic dyno tuning.

[enkeivette]

I was talking with my Mercedes tech buddy about his SBC dyno tuning days at UTI. He told me, that in order to pull 380 wheel hp out of his hopped up small block, he did approximately 80 dyno runs to achieve that hp level.

No not 8... 80 dyno runs. This tells me one thing, if you don't have free access to a dyno with fairly extensive carb tuning/ dist curving knowledge or an electronically controlled motor, you'll never make the kind of numbers that you see cookbook engines making in Hot Rod magazine.



On the other hand, with an LM1 you can get much closer than you would by reading plugs. I'll never spend money on a dyno run ever again. When I finally buy that LM1, that will be enough for me.

[Vettezuki]

I was talking with my Mercedes tech buddy about his SBC dyno tuning days at UTI. He told me, that in order to pull 380 wheel hp out of his hopped up small block, he did approximately 80 dyno runs to achieve that hp level.

No not 8... 80 dyno runs. This tells me one thing, if you don't have free access to a dyno with fairly extensive carb tuning/ dist curving knowledge or an electronically controlled motor, you'll never make the kind of numbers that you see cookbook engines making in Hot Rod magazine.



On the other hand, with an LM1 you can get much closer than you would by reading plugs. I'll never spend money on a dyno run ever again. When I finally buy that LM1, that will be enough for me.


FWIW, it took about 25 runs with my ECM controlled Heads and Cam LS1 to get to 380 (Mustang). Though their A/F was giving difficult to pin down readings. My tuner did a good job (tuner and dyno were separate). I think it was about $600 by the time all was said and done. It's tuned to almost run on 91 ;). But timing and fuel is conservative to prevent detonation. Since I've discovered the mysteries of Torco, after installing LT headers I'd like to retune with agressive timing. With my relatively hi-comp motor, might net a noticable amount of HP.