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Hi guys, finally have the results for my build, this is a maha German Dyno, it’s tough to please, but on the graph is a 454Lsx crate motor for comparison on the same Dyno, mines a 419, and mine is the one that keeps revving.
How did this ony make 611 crank? Something I's very wrong imo...
Well the 454LSX with a 102 FAST in a 350Zonly made 548, I have another with a 454LSX in an RX8 same results.
On this dyno this is a good figure.
I know my car to drive and I think this will trap in excess of 135mph, the old motor trapped at 133mph, but this one smashes into a 7500rpm limit.
What does a 454LSx generally make at the wheels on US Dyno's 540ish??
The operator of this Maha Dyno goes over to the US twice a year to do set ups of Turbo stuff, he says as a rough rule of thumb what we get here at the crank the US see at the wheels.
I may be able to get a run on a Dyno Jet that my old engine was run on before, I will do that just to see what the mods have done.
I'm not driving/spending fortunes just to get the figure for the bar/forums!
If the engine is good the slip will tell all...
thats a sharp looking TVR! I always love those cars.... nice numbers too comparing the 454.....I take it that it had a conventional intake manifold? thoses ITB's really carried the power thru the top end!
thats a sharp looking TVR! I always love those cars.... nice numbers too comparing the 454.....I take it that it had a conventional intake manifold? thoses ITB's really carried the power thru the top end!
Yes the LSX454 had a FAST 102 on the top, there is also another one in their files with a standard LS3 Intake but that one is about 15bhp less than the one shown, so its not a bad 454 its in the ballpark.
From what I've read the MAHA is an amazing dyno. It's used by many OEM auto manufacturers use. Most cars stock regardless various makes or model will test within 3 to 5 hp of their SAE crank rating on a MAHA. The MAHA is a chassis dyno that can very accurately measure driveline loss and also calculate engine flywheel hp.
Seems like the MAHA would be the ideal sort of dyno to get a car tuned on and can give all the flywheel, drive line & rear wheel hp data to help fully optimize a car or truck for better real world performance.
My experience in manufacturing, definitely a fan of quality German test equipment, provided the operator is correctly trained and calibration is done.
Last edited by 99 Black Bird T/A; 11-14-2018 at 03:08 PM.
11-03-2018, 03:29 AM
419CI afr245 Itb’s 
