this is why i put a stype 4.2 in my rr chassis, 290bhp straight out of the [cheap scrapyard] box, + 17mpg if you drive like a fanny but the original 1975 [stromberged] 126bhp v8, 11mpg, is still in the corner, just in case.... + when i can afford [ha ha] uprated axles, i can chuck the supercharger on... keep up the excellent work
I might some day, but every time you change the filtration it changes the carb settings so that will have to wait until im running a dyno mule not a clients engine
@@PenguinMotors I always was under the assumption the p6 box was pretty restrictive.. on another note the SU carbs with external floats I don't think are very good either
before the filter swap i had already fitted different needles as it was lean, for the filter the test i didnt change needles, but i did have to richen it up a bit.
not really, it was about right for the era, to put it into perspective, 3.0 ford v6 made 138bhp. Triumph stag 3.0 v8 was 145bhp, low compression rover v8 as fitted to MGB and Range Rover were only 135bhp.
Great comparisons proof is in the dyno
Great, practical, real life test/video as always. Fantastic stuff Graham.
Excellent video Graham, loving the Rover V8 videos as I have a couple of them. One std and a warmed up one.
Another excellent video Graham!
this is why i put a stype 4.2 in my rr chassis, 290bhp straight out of the [cheap scrapyard] box, + 17mpg if you drive like a fanny
but the original 1975 [stromberged] 126bhp v8, 11mpg, is still in the corner, just in case....
+ when i can afford [ha ha] uprated axles, i can chuck the supercharger on... keep up the excellent work
How about a power run with K&N air filters?
I might some day, but every time you change the filtration it changes the carb settings so that will have to wait until im running a dyno mule not a clients engine
@@PenguinMotors I always was under the assumption the p6 box was pretty restrictive.. on another note the SU carbs with external floats I don't think are very good either
powerwise at least, theres no difference between HS and HIF carbs
How about a power run with K&N air filters
P6 with big filters in the 3rd run made good low down torque
Yes it did, obviously low Down the filters held it back but at high rpm the filter box holds it back
Ide be tempted to drill a massive hole out of sight on the underside of the airbox if thats possible?
Yes either underside or rear and it wouldn’t be seen
Any needle swap needed for the sd1 airbox or fit and play?
before the filter swap i had already fitted different needles as it was lean, for the filter the test i didnt change needles, but i did have to richen it up a bit.
I never realised that a Rover 3.5 only made around 150bhp.
Seems poor for that capacity?
not really, it was about right for the era, to put it into perspective, 3.0 ford v6 made 138bhp. Triumph stag 3.0 v8 was 145bhp, low compression rover v8 as fitted to MGB and Range Rover were only 135bhp.
Correct Graham, and every motorway police force used P6 V8s because they were powerful in their day