4/71 blower experiment on my 4.6 :)
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Tried that spraying at 4psi a few weeks ago with no better results. So I just switch gears back to 4 psi. It seems I don't have enough horsepower on my 3.5 to spin my blower that fast. Engine dies at 5200rpm while at 4psi I can reach 7000 with no problem.
Have to say... with stock heads I had 8psi also with no issues.
Merlin heads dropped the boost levels to 4psi but with more bhp as a result so I took the change to raise boost to 8psi with spining the blower even faster.
Lesson I learned............raising boost with a blower will not raise bhp all times as it takes more bhp to drive the blower faster. There's a point the engine won't have enough to spin it.
A blower can not be compared to a Turbo which takes allmost no bhp to spin so it has nothing to do with boost levels.
For the moment Ill stick to my 3.5 ( have too....).
Explanation why I need 7000rpm....
Holland is near Germany where they have an Autobahn. From where I live its 1 hour away...............
Those Germans think my scoop is fake until I shift into 5th at 135 real mph......suprise....... you have been fooked by an OldSkoolFord with a driver on clogs
Have to say... with stock heads I had 8psi also with no issues.
Merlin heads dropped the boost levels to 4psi but with more bhp as a result so I took the change to raise boost to 8psi with spining the blower even faster.
Lesson I learned............raising boost with a blower will not raise bhp all times as it takes more bhp to drive the blower faster. There's a point the engine won't have enough to spin it.
A blower can not be compared to a Turbo which takes allmost no bhp to spin so it has nothing to do with boost levels.
For the moment Ill stick to my 3.5 ( have too....).
Explanation why I need 7000rpm....
Holland is near Germany where they have an Autobahn. From where I live its 1 hour away...............
Those Germans think my scoop is fake until I shift into 5th at 135 real mph......suprise....... you have been fooked by an OldSkoolFord with a driver on clogs
'73 Ford Capri. 3.5 RV8, Magnacharger 110 Supercharger, Merlin F85 Heads, Water/Methanol Injected
'73 Ford F250, 6.7ltr V8
Building a GT40 mk2
'73 Ford F250, 6.7ltr V8
Building a GT40 mk2
It was indeed Gasserman !!gasserman wrote:hello saw you at dragstalgia at the pod was that a 10.2 sec pass ,awsome
I'm well happy
I have to work this weekend and next and then I'm off for 2 weeks in the Sun. But I just realised that theres a RWYB on Saturday 11th August which is the day after I come back so I'm going up again
And then going to North Weald for the 19th August as well !
What car where you running?? There was some serious metal on site for the weekend eh? I missed last year because I broke mine the week before
Regards
Perry
Perry Stephenson
MGB GT + Rover V8
9.62 @ 137.37mph
Now looking for 8 seconds with a SBC engine
I will be at north weald on sunday. And next week I'm starting a new engine build. I'm keen to run a 9 so I need more grunt
Perry Stephenson
MGB GT + Rover V8
9.62 @ 137.37mph
Now looking for 8 seconds with a SBC engine
Bugger!!Blown v8 wrote:Got there a t 2pm,couldnt find you !
I was there till 4pm. Didnt take any cars as it was pre 73 only...
The handling event was a good laugh eh ??
Perry Stephenson
MGB GT + Rover V8
9.62 @ 137.37mph
Now looking for 8 seconds with a SBC engine