Red Rose vs. standard dyno charts (my old car)
Discussion
Typical... only get round to posting them after I've sold the car! From "A note to the factory" thread. Upshot - well worth getting on a new car for 2k!
I'm sure someone must have a Rover one to compare.
The first one is pre Red Rose conversion, with 350bhp and 300lbft, this is typical for the best standard 4.5's. Has over 200bhp by 4500rpm, and has 200lbft by 2000, rising rapidly to about 4000rpm. Torque is held up all through the rev range.
The second is the first run after the Red Rose mods, was aborted early due rapid engine temp increase - but peak torque has lifted to 340lbft at the same place - 5000rpm. Over 4500rpm the head mods and higher compression really show - the whole torque curve is lifted by about 30 to 40lbft. Now has over 250lbft by 2000rpm.
The last one just captures the tail end of the rev range to get peak power - 400bhp at 7200rpm!
danny
I'm sure someone must have a Rover one to compare.
The first one is pre Red Rose conversion, with 350bhp and 300lbft, this is typical for the best standard 4.5's. Has over 200bhp by 4500rpm, and has 200lbft by 2000, rising rapidly to about 4000rpm. Torque is held up all through the rev range.
The second is the first run after the Red Rose mods, was aborted early due rapid engine temp increase - but peak torque has lifted to 340lbft at the same place - 5000rpm. Over 4500rpm the head mods and higher compression really show - the whole torque curve is lifted by about 30 to 40lbft. Now has over 250lbft by 2000rpm.
The last one just captures the tail end of the rev range to get peak power - 400bhp at 7200rpm!
danny
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