Sun visor air dam drag
- Joseph Baz
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cheers,Joe
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- OKADOC
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- Hal Harvey
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Principal advisor to the Minister for Tourism, Liza Harvey MLA
... OKA 260 ... "I'm not leaving any sooner than I have to!"
www.byles.net/OLDportal/members-vehicles-public/5-oka-260
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- Joseph Baz
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Cheers,Joe
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- DarrenWebster303
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racer, I cant wait to here how you felt when you do get to turn on to the strip from the staging lanes for the first time in an Oka. You do also know that its going to be an west v east thing as soon as you run a number, Im going to have to see what my garden shed will run! As Joe said, health first my friend. (note: I don't consider 160Kph+ in an Oka healthy!!)
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- DarrenWebster303
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- Ewart and Vivian Halford
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Cheers
Ewart oka 365
0428911147
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- Hal Harvey
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DarrenWebster303 wrote: ...as soon as you run a number, Im going to have to see what my garden shed will run! As Joe said, health first my friend. (note: I don't consider 160Kph+ in an Oka healthy!!)
Haha, "garden shed" is so on the money! And I was actually figuring on a finish line speed of around 140km/h, which should be exciting enough - we'll see. In due course. I've been trialling on a short bit of private road that I have available - and I really do have traction issues - will definitely be launching with the rear locker on, front locker off, in 4-H with the hubs locked in. Darren I was figuring on about 30psi (will be using 265/70R 19.5 initially) - how does that sound to you? Any other tips? I was holding on the line at 2000rpm for the launch.
Principal advisor to the Minister for Tourism, Liza Harvey MLA
... OKA 260 ... "I'm not leaving any sooner than I have to!"
www.byles.net/OLDportal/members-vehicles-public/5-oka-260
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- Peter and Sandra OKA 374
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What is the sweet spot on the Duramax where the power and torque curves cross?
How far does it drop the revs when you take off as the torque converter takes up?
Trying to keep it on or above the sweet spot at launch would be the go wouldn't it? Been over 30 years since I've done any dragging.
OKA 374 LT Van, converted to camper/motorhome,
400ah Lithiums, 1100w solar, diesel cooking heating and HWS,
Cummins 6BT, Allison 6 speed auto, Nissan transfer.
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- outyonda
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Sat night at Scarbourgh was the night!!
the bottom car park, beach sand at far end.
I'm shore you could relate to that Hal
A few little kerbs shouldn't slow an OKA much.
OKAs 091, 093, 094, 113, 346x6 & 405
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- outyonda
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tyre compound might be A traction issue??
265/70 19.5 are A truck tyre, hard & tough.
Drag tyres are soft & pliable.
#405 has 305 19.5 snow & mud, A softer tyre,
I'm pulling them off to sell after seeding,
you are welcome to "test drive" them Hal
Brett
OKAs 091, 093, 094, 113, 346x6 & 405
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- DarrenWebster303
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- DarrenWebster303
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- OKADOC
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On that note Hal have you been a good boy and eating 1 whole paw paw including skin everyday cause a friend John who owns the local Cellabrations liquor shop in Newman has been battling liver cancer for 2orso years now and after I told him about my experiences he has been doing the above for a month now and his wife Anita who runs the store cornered me recently bubbling with hope and excitement and thanking thanking me for sharing my knowledge as his liver tumor has substantial shrunk in the last month, the first time since he was besieged by the pathogen, he is in Perth for two weeks chemo as I write.Everyone, this is not an isolated incident, take note and google paw paw leaves and act if necessary as it will most likely help preserve your life, and no I don't have shares in the paw paw world.
Gentleman start your engines.
Regards to all from Doc And Lyn Davey
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- Hal Harvey
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Peter and Sandra James OKA 374 wrote: This is so wrong but great!!!
What is the sweet spot on the Duramax where the power and torque curves cross?
How far does it drop the revs when you take off as the torque converter takes up?
See if this helps at all:
I haven't had mine on a dyno but you'd think 2500-3000 is the right vicinity. Relatively high. The chart shows emissions-regulated motors - Darren and I have dirty motors with tune dials, that should be good for about 25% more horsepower with the tune dial on the highest setting (5); don't know about torque.
So I tried again this afternoon with lower pressure and 4WD, and it made a world of difference of course. Got traction. It didn't drop revs at all by the tachometer - straight from a 2000rpm hold up past 3000, shift, and then I'm running out of my little bit of road. But no wheelspin, just a proper launch. Looking good, except the weather forecast for this Wednesday isn't. And by the sound of it I'll need a new rear ring & pinion by the end of this, but you have to do these things, hey.
Principal advisor to the Minister for Tourism, Liza Harvey MLA
... OKA 260 ... "I'm not leaving any sooner than I have to!"
www.byles.net/OLDportal/members-vehicles-public/5-oka-260
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- outyonda
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Have you tried the traditional "burnout" first
get the tyres tacky, more grip!
OKAs 091, 093, 094, 113, 346x6 & 405
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- Hal Harvey
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There's a couple of things against burn outs - the rubber on these tyres is so hard I'd really have to fry them to get then sticky, like 100km/h for 5-10 seconds, and while that would be spectacular it is also likely to be unnecessary; the bitumen at the start of the Motorplex strip is so infused with VHT traction spray that you can actually hear a car's tyres doing a pluck-pluck-pluck sound as it is pushed over it. Very sticky.
And the other thing is that these 265 tyres are borrowed from Brian Carr, and he'd probably like them back with some rubber on them. I needed a set of more-legal tyres for a recent licensing examination, and the engineer made a point of (rightly) disapproving of my 14-y.o. 285s (prior to the examination date, so I had time to change them). Brian's were much newer and served the purpose. And yes I did ask him if I could leave them on for the drags! There is/should be a gearing advantage with the smaller diameter tyres over my normal 38.5" 355s; though Heath reckoned go with whichever is lightest, which is actually the 355s. But I thought I'll save them for another night and would then be able to compare the two. If I haven't broken too much in the meantime.
Principal advisor to the Minister for Tourism, Liza Harvey MLA
... OKA 260 ... "I'm not leaving any sooner than I have to!"
www.byles.net/OLDportal/members-vehicles-public/5-oka-260
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- dandjcr
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David and Janet Ribbans - Oka 148
Oka148 profile here.
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- Outback Jack
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- DarrenWebster303
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