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nissan dizzy or lucas dizzy
Poll ended at Sun Mar 18, 2007 6:12 pm
nissan 36%  36%  [ 5 ]
lucas 64%  64%  [ 9 ]
Total votes : 14
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mattsmini1971
 Post subject: dyno results
PostPosted: Tue Mar 13, 2007 6:12 pm 
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hey guys had the mini on the dyno today and was'nt very happy with the results.
39bhp and 91nm of torque at 3000rpm.
all this was with a nissan dizzy and the advance was 55degrees advance at 3000rpm which isnt very good is it.

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slinkey inc
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PostPosted: Tue Mar 13, 2007 6:14 pm 
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Dude, set up way wrong!

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drmini in aust
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PostPosted: Tue Mar 13, 2007 6:16 pm 
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Wind it back if they didn't, or you'll break something- max advance (vac disconnected) should be around 30* when centrifugal advance is all in.
This applies with a Nissan OR a Lucas. :wink:

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slinkey inc
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PostPosted: Tue Mar 13, 2007 6:18 pm 
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Just re-read your post....at 3000rpm!?!?

Max advance should be about 30 degree BTDC, some books give different figures but this one isn't bad for a naturally aspirated motor running good fuel.

I don't think this has anything to do with the Nissan Dizzy, you can over advance any dizzy. And if that's 55 degrees BTDC at max, that sounds like way too much!

I'm running 20ish (D4R85 dizzy at 5 degrees at around 700rpm) max advance on my car as a safe figure until I go the dyno next week. But my car is boosted (low boost) so it's a bit different for igntion timing.

<edit> Doc, you typed in jsut before me. :lol:

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1964 Morris 850, 1330 Supercharged - 81.8hp atws.
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1977 Leyland Mini LS - Project LS-T 8)


Last edited by slinkey inc on Tue Mar 13, 2007 6:20 pm, edited 1 time in total.

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mattsmini1971
 Post subject: yep
PostPosted: Tue Mar 13, 2007 6:19 pm 
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im gioing to send it to grapham russel and get a regraph done.

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mattsmini1971
 Post subject: at idle
PostPosted: Tue Mar 13, 2007 6:20 pm 
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at idle its around 25 degrees

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slinkey inc
 Post subject:
PostPosted: Tue Mar 13, 2007 6:21 pm 
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I'd say no more than 10 degrees, you will blow ur motor up sadly.

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1964 Morris 850, 1330 Supercharged - 81.8hp atws.
1975 Leyland Mini S 1100S powered - Nice and reliable.
1977 Leyland Mini LS - Project LS-T 8)
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drmini in aust
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PostPosted: Tue Mar 13, 2007 6:21 pm 
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Regraph good but the 30* max advised still applies.
All the regraph does is pull up the bottom end torque, over 3500 there is no difference.
Yes I have 2 running--- 8)

is that with the vacuum line on?
Always set timing with it off. :wink:

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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mattsmini1971
 Post subject: oo
PostPosted: Tue Mar 13, 2007 6:23 pm 
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i thought i had to get the weights and or springs changed?

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drmini in aust
 Post subject: Re: oo
PostPosted: Tue Mar 13, 2007 6:26 pm 
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mattsmini1971 wrote:
i thought i had to get the weights and or springs changed?

The weights are the same, he modifies the advance plate to limit advance, and plays with the spring tension. he says... :wink:
I did my own 2, I just mod the plate. 8)

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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mattsmini1971
 Post subject: dizzy
PostPosted: Wed Mar 14, 2007 6:55 pm 
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hi all got the timing set properly thanks to dr mini. starts easier now and is way smoother throw the rev range. im sending the dizzy away to get modified to suit the mini and will be back to the dyno. thanks again dr mini.

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Spaceboy
 Post subject:
PostPosted: Wed Mar 14, 2007 8:53 pm 
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crappy nissan dizzys belong on crappy nissans
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slinkey inc
 Post subject:
PostPosted: Wed Mar 14, 2007 8:56 pm 
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Crappy BMC dizzy's to stay on crappy BMC engines.

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1964 Morris 850, 1330 Supercharged - 81.8hp atws.
1975 Leyland Mini S 1100S powered - Nice and reliable.
1977 Leyland Mini LS - Project LS-T 8)
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mattsmini1971
 Post subject: mmmm
PostPosted: Wed Mar 14, 2007 8:57 pm 
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i was told id start a fight.

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slinkey inc
 Post subject:
PostPosted: Wed Mar 14, 2007 9:13 pm 
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Yeah it's all been done before. I once got to argueing with a bloke on here telling me the Nissan dizzy would blow my car up. Yet his info was all heresay. He'd never used a Nissan dizzy.

A warn out dizzy on any discription is crap and bad. Either Nissan or BMC.

Hope your dyno issues work out for the best.

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1964 Morris 850, 1330 Supercharged - 81.8hp atws.
1975 Leyland Mini S 1100S powered - Nice and reliable.
1977 Leyland Mini LS - Project LS-T 8)
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