5.0l 500BHP NA Rover V8 take 3
Discussion
Simple answer is yes.
M256 has inlet 48, Exhaust 43 Total 91
H404 I am unsure of but it probably falls between the
M248 has inlet 43, Exhaust 41 Total 84
and
M238 has inlet 34, Exhaust 37 Total 71
Datasource:
http://www.wolfitt.com/kentcamdata.htm
It would be interesting to have the cam values from TarmacV8 - with his roller cam.
M256 has inlet 48, Exhaust 43 Total 91
H404 I am unsure of but it probably falls between the
M248 has inlet 43, Exhaust 41 Total 84
and
M238 has inlet 34, Exhaust 37 Total 71
Datasource:
http://www.wolfitt.com/kentcamdata.htm
It would be interesting to have the cam values from TarmacV8 - with his roller cam.
Edited by rev-erend on Tuesday 10th April 14:07
Seem to have solved my inlet spit back issues after a 2 hours mapping session at home on Sunday.
Seemed to be down to a combination of issues:
Base timing
Throttle body balance (bank to bank)
Ignition & fuel mapping
and remembering to turn off compensation when mapping..
We now progress to the next stage .. more mapping
Seemed to be down to a combination of issues:
Base timing
Throttle body balance (bank to bank)
Ignition & fuel mapping
and remembering to turn off compensation when mapping..
We now progress to the next stage .. more mapping
Yes i lean towards the simpler cheaper option.
I do wonder if going full sequential with individual cylinder management , exhaust lambda's, tuning on the run , e act crank truggering etc would make any significant difference with low rpm throttle response and burn efficiency anyway. Considering the jed has injectors a foot away from valves anyway. Its sorts itself out with velocity and just cant get that at low rpm
I do wonder if going full sequential with individual cylinder management , exhaust lambda's, tuning on the run , e act crank truggering etc would make any significant difference with low rpm throttle response and burn efficiency anyway. Considering the jed has injectors a foot away from valves anyway. Its sorts itself out with velocity and just cant get that at low rpm
Rover 5.0 . TA heads. 10.5 comp, pump fuel, race / rally solid roller.
This is my engine bed in graph and check all safe to get some miles on it, semi slicks were spinning on rollers 11% so actual figure on day be around 300rwkw with road tyres. Injectors were at 97% duty at 5250.
lost traction where it falls over.
Sorting ignition and fuel system, look fed to returning to add timing and take to 7500rpm.
TarmacRV8 said:
Rover 5.0 . TA heads. 10.5 comp, pump fuel, race / rally solid roller.
This is my engine bed in graph and check all safe to get some miles on it, semi slicks were spinning on rollers 11% so actual figure on day be around 300rwkw with road tyres. Injectors were at 97% duty at 5250.
lost traction where it falls over.
Sorting ignition and fuel system, look fed to returning to add timing and take to 7500rpm.
TarmacRV8 said:
Rover 5.0 . TA heads. 10.5 comp, pump fuel, race / rally solid roller.
This is my engine bed in graph and check all safe to get some miles on it, semi slicks were spinning on rollers 11% so actual figure on day be around 300rwkw with road tyres. Injectors were at 97% duty at 5250.
lost traction where it falls over.
Sorting ignition and fuel system, look fed to returning to add timing and take to 7500rpm.
Find yourself a hub dyno next time :-)
Nice figures nevertheless.
Phil
420 SEAC
I would have loved to put the engine on builders superflow engine dyno, but as Hes never done a rover before he didn't have access to a bellhousing drive etc to rig it up.
So went to his recommended tuner and chassis dyno. A hub would be nice.
I'll put on road tyres, soften up rebound on shocks and add some sandbags next time.
I never considered a ls for many good reasons.
1.The car becomes a hotrod, looses its soul and value.
2. You rule yourself out of many competitive events and classes.
3.The MGB series chassis is near on 50/50 weight distribution from factory.
4. The rover sounds better hands down.
In oz here I'm always at car shows or club comp events and amazed at the amount of ls and Holden/ford/chev owners that come up to ask me 'what the hell is in that'!
5. Power to weight, these dinky English cars aren't American iron with loungechairs.
6. A high winding 3.5-5 litre will move a well balanced car with less chance of traction loss than a nose heavy 5.7-7 litre car with heavy gearbox/clutch/ diff upgrades to handle the excessive torque for chassis.
7. Its more satisfying and unique.
8. To get reliable and substantial increase in power from an ls beyond factory internals, it involves the same work I have carried out on rover anyhow.
Yes the ls is better with the advantage of 50 yrs of knowledge, will give heaps more hp, torque, fuel efficiency and longevity any day over an equivalent rover. But i didn't want to put a Honda or Briggs and Stratton in my ride on mower
So went to his recommended tuner and chassis dyno. A hub would be nice.
I'll put on road tyres, soften up rebound on shocks and add some sandbags next time.
I never considered a ls for many good reasons.
1.The car becomes a hotrod, looses its soul and value.
2. You rule yourself out of many competitive events and classes.
3.The MGB series chassis is near on 50/50 weight distribution from factory.
4. The rover sounds better hands down.
In oz here I'm always at car shows or club comp events and amazed at the amount of ls and Holden/ford/chev owners that come up to ask me 'what the hell is in that'!
5. Power to weight, these dinky English cars aren't American iron with loungechairs.
6. A high winding 3.5-5 litre will move a well balanced car with less chance of traction loss than a nose heavy 5.7-7 litre car with heavy gearbox/clutch/ diff upgrades to handle the excessive torque for chassis.
7. Its more satisfying and unique.
8. To get reliable and substantial increase in power from an ls beyond factory internals, it involves the same work I have carried out on rover anyhow.
Yes the ls is better with the advantage of 50 yrs of knowledge, will give heaps more hp, torque, fuel efficiency and longevity any day over an equivalent rover. But i didn't want to put a Honda or Briggs and Stratton in my ride on mower
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