Rufus power!

General engine, transmission or drive line questions including tuning questions for all engine types
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Early GT
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Car(s): 1966 Bellett GT, 1968 Bellett GT, 2017 Subaru Levorg 2.0 GTS
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Rufus power!

Post by Early GT »

Just had my carbies tuned and the car is running sweet, Out of curiosity I had Rufus run up on the dyno after the engine rebuild (plus 600km). Interesting that he made 98.4hp@4900rpm. Seperate test to 5200rpm 170kph showed a level off.
It only has a mild cam 1/8" bigger extractors and a bit of porting. Carbies are too small to achieve any more power. Not bad considering manufacturer's specs show 91horses at the flywheel 8- Good flat torque graph too, higher than manufacturers rating.
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Dyno test at Motacarb 27/9/12
Dyno test at Motacarb 27/9/12
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PR95
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Re: Rufus power!

Post by PR95 »

Hi Lewis
Are you happy with the performance, did it make a lot of difference?
Geoff
rod
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Re: Rufus power!

Post by rod »

car looks good ..... all the work you have done on motor and only gaining 7 horses over standard not good :roll: you would expect more :D
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Glenn
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Re: Rufus power!

Post by Glenn »

rod wrote:car looks good ..... all the work you have done on motor and only gaining 7 horses over standard not good :roll: you would expect more :D
thats rear wheel HP, not quoted engine power. There are losses in the trans. so the rear wheel HP measured is pretty good I think.
'72 PR60 Sport
gt orphanage
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Re: Rufus power!

Post by gt orphanage »

Thats a big improvement the best guide would be research whp stock on 13 inch wheels/tyres ;) i think you would be supprised.
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Early GT
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Car(s): 1966 Bellett GT, 1968 Bellett GT, 2017 Subaru Levorg 2.0 GTS
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Re: Rufus power!

Post by Early GT »

Yeah Geoff, considering a manual transmission car typically loses 16% of its flywheel
horsepower that means my engine is producing 133 net HP at the flywheel, whopping 45
more HP than standard G161. Greg, I am running std profile 13" wheels.
How did Mildred's 1st big drive go today?
I have been installing my new quarter window rubber seals today.... Bit tedious, and I discovered why the
LHS was siliconed shut... The top pivot spot weld is broken off. :o if araldite doesn't work the window will have
to be siliconed shut again :evil:
Cheers, Lewis
gt orphanage
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Re: Rufus power!

Post by gt orphanage »

We covered over 400km today 5 belletts 2 mazda rotories and a toyota. Mildred has been good,missy has a new engine and liz drove her today for the first time they are bonding quite well. OLyella had the charge light on but when we pulled up for fuel a wire was off, Okka and Trish,red bell has a temp sender issue. so far so good we head home tomorrow from gayndah
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Glenn
Posts: 2826
Joined: Tue May 10, 2011 2:23 am
Car(s): '72 Sport Bellett (imported 180912), M/B AMG A35, i30, had Belletts in past, 2 sed, 3 GT's.
Location: Melb.
Contact:

Re: Rufus power!

Post by Glenn »

Early GT wrote:Yeah Geoff, considering a manual transmission car typically loses 16% of its flywheel
horsepower that means my engine is producing 133 net HP at the flywheel, whopping 45
more HP than standard G161. Greg, I am running std profile 13" wheels.
How did Mildred's 1st big drive go today?
I have been installing my new quarter window rubber seals today.... Bit tedious, and I discovered why the
LHS was siliconed shut... The top pivot spot weld is broken off. :o if araldite doesn't work the window will have
to be siliconed shut again :evil:
Cheers, Lewis
Lewis, as you will have seen, I have spare GT doors so if you need a top frame, let me know.

Glenn
'72 PR60 Sport
gt orphanage
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Re: Rufus power!

Post by gt orphanage »

It's only a rivet drill it out and replace it with a small stainless bolt and nut lock tight it. easey fix no 1 will pick it unless we tell em :oops:.
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