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Author Topic: RPM limit versus powerband increase tradeoff  (Read 5686 times)

January 29, 2006, 03:29:20 pm

fspGTD

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RPM limit versus powerband increase tradeoff
« on: January 29, 2006, 03:29:20 pm »
Greetings Volks,

For you IDI VW Diesel owners out there interested in increasing your car's performance...  how much would you prefer your fuel pump's max no-load RPM be set to in order to increase the upper RPM limit of your usable powerband?

Note: max no-load RPM is the speed the engine turns if the throttle is floored with the tranny in neutral.
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Jake Russell
'81 VW Rabbit GTD Autocrosser 1.6lTD, SCCA FSP Class
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Reply #1January 29, 2006, 03:38:55 pm

935racer

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RPM limit versus powerband increase tradeoff
« Reply #1 on: January 29, 2006, 03:38:55 pm »
I vote to govern with right foot :twisted:
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Reply #2January 29, 2006, 08:25:57 pm

SMOKEYDUB

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RPM limit versus powerband increase tradeoff
« Reply #2 on: January 29, 2006, 08:25:57 pm »
govern? hold it to the floor!
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12mm PUMP 'O' DEATH on a 1.6L
(courtesy of GILES)

2000 NISSAN XTERRA (5 SPD)
1990 VW JETTA 20 VALVE DRAG CAR
1984 RABBIT TD 2dr (SOLD)
1.8t AEB soon around 550 whp
Reply #3March 05, 2006, 09:11:55 pm

Dr. Diesel

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RPM limit versus powerband increase tradeoff
« Reply #3 on: March 05, 2006, 09:11:55 pm »
never had a problem with hopped up gassers that had no rev limiter.
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Reply #4April 25, 2008, 09:33:54 am

Helliouse

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RPM limit versus powerband increase tradeoff
« Reply #4 on: April 25, 2008, 09:33:54 am »
I'm all for 7000-10000 rpm diesels, with HUGE turbo's!
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1990 Jetta TD...Its a Project! And wait...its built in Wolfsberg! swEEt - 1.6l TD = Dead... TDI ALH in the works...
Reply #5June 10, 2008, 11:13:48 am

gigaz2

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RPM limit versus powerband increase tradeoff
« Reply #5 on: June 10, 2008, 11:13:48 am »
valvefloat for me :D  (with double spring upgrade ;) )
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Reply #6March 09, 2009, 12:56:55 am

Rabbit on Roids

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RPM limit versus powerband increase tradeoff
« Reply #6 on: March 09, 2009, 12:56:55 am »
see, now someone told me on another page, about this same topic, that these motors make max power around 4000. and that it is pointless to rev them to anything past that. i like the idea of having very little governor. we all have built in governors, its just that some of us dont know how to let off the smoke pedal. i think it would be friggin sweet if we could make our motors turn a ton of revs and still be building power.
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Reply #7March 09, 2009, 03:26:33 pm

SMOKEYDUB

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RPM limit versus powerband increase tradeoff
« Reply #7 on: March 09, 2009, 03:26:33 pm »
my 1.6 made wicked power even roughly around 6200 rpm
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12mm PUMP 'O' DEATH on a 1.6L
(courtesy of GILES)

2000 NISSAN XTERRA (5 SPD)
1990 VW JETTA 20 VALVE DRAG CAR
1984 RABBIT TD 2dr (SOLD)
1.8t AEB soon around 550 whp
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