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Winton or bust!

Started by rodomo , Dec 07 2006 07:23 PM

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683 replies to this topic

#551 TerrA LX

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Posted 05 May 2010 - 01:42 AM

Fook me mate, U trying to get people thinking you engineering a race car or somethik...

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#552 _doogs_

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Posted 05 May 2010 - 05:28 PM

This thread just keeps getting better !
Looks great Rob, hopefully you will be knocking off a couple of V8s in no time. :rockon:

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#553 rodomo

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Posted 08 May 2010 - 11:08 PM

That's the plan Doogs!

Splash / heat **BLING** sheild thingo.

Posted Image

And accelerator cable bracket

Posted Image

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#554 warrenm

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Posted 09 May 2010 - 07:30 AM

That should keep the carbs a little cooler.

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#555 rodomo

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Posted 09 May 2010 - 08:11 AM

That should keep the carbs a little cooler.

I hope so? Or will it pull heat from the extractors and sink it into the inlet? :dontknow:

If you look at pic 3, you'll see that it follows the inner edge of the chassis rail. It also follows the horizontal profile of the rail with a 20mm gap.

There is a big hole in the LH rad. support upright that should direct cold air into this area. Might have to help it with some ducting.

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#556 wot179

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Posted 09 May 2010 - 08:31 AM

Lookin good,Rob.

When is the next track day?

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#557 rodomo

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Posted 09 May 2010 - 08:38 AM

Next Sunday the 16th.
http://www.hsvowners...16_May_2010.pdf

I sent Rotten Ronnie a PM to see if he's going but he hasn't replied? :dontknow:

I think he's scared.

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#558 _brett_32i_

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Posted 09 May 2010 - 11:02 AM

is it possible to mount it free of the intake?

then it wouldnt be able to 'sink' to the intake as you mentioned.

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#559 rodomo

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Posted 09 May 2010 - 08:40 PM

Bit hard. Not in the pic are the fuel feed lines, the over flow lines or the "Super Dooper" aircleaners. It's getting a bit "busy" under the bonnet. If I can get enough cold air into the area it will hopefully be O.K.

Pics to come. :ph34r:

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#560 warrenm

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Posted 10 May 2010 - 07:57 AM

I made a similar shield when I fitted the 1 3/4", the temperature of the rear fuel bowl reduced dramatically, as it used to boil the fuel. I had the same concern that it may act as a big heat sink, but it works ok.

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#561 micklx

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Posted 11 May 2010 - 08:51 PM

I'll try and drop in on Sunday for a look. Can't wait to see the new powerhouse engine in action !!!

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#562 makka

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Posted 14 May 2010 - 11:00 PM

I might even have to come for a look on sunday, what time rob? at sandown?

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#563 rodomo

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Posted 15 May 2010 - 12:07 AM

http://www.hsvowners...16_May_2010.pdf

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#564 Stinga

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Posted 15 May 2010 - 02:51 AM

nice work on the extractors, and same same for the 9 to 12 port swap on the inlet! thought about making an airbox for the filters and sealing it up against a dirty big hole in the bonnet, covered by some kind of home made scoop?

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#565 _Woodsy_

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Posted 15 May 2010 - 12:07 PM

Looking good!! Can't wait to see results from the track!

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#566 _eh-buddy_

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Posted 15 May 2010 - 01:01 PM

nice job you should try a cold air induction with a reverse scoop ......make a air box and have it seal on the bonnet i will take a pic off the sports sedan's setup in the shed (if i work out how to post it)

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#567 wot179

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Posted 16 May 2010 - 08:22 PM

Update time,mate!!!

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#568 rodomo

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Posted 16 May 2010 - 10:07 PM

The day went without an issue, heaps more grunt and speed.
Rotten Ronnie was blown to the weeds and Mad Mick from Bunyip is in my sights!

(wakes up from dream :ZZZ:

and takes a reality check :DOH:

)

Where do I start?

WARM UP
Cold and foggy when we got on the track, instructed to turn headlights on :blink2:

Take it easy........take it easy...... bit faster.......bit faster..... Then on about the 3rd lap......Spin! Spin Spin! (in best Murray Walker voice) at turn 1 under accelleration after I thought the tyres were gipping up.............nup..........full 360! Tyres too hard, dodgey throttle application and TOO MUCH GRUNT!!!!!!!

BREAK
Fiddle with accelerator return springs.
Check tyre pressures. (too high)

FIRST TIMED OUTING.
No incidents, all laps within a second or 2 of PB. 1 lap was right on it.

Still cold and damp.

BREAK
Still not 100% happy with throttle. Makka helped me check full throttle which wasn't.
Only getting about 3/4.
Fiddle.........fiddle........check tyre pressures.

SECOND TIMED OUTING
Better, no incidents, new PB 1/2 a second faster 1:37.something?.........still cold though.

BREAK
Check plug colour and richen up mixtures, back off idle as it was starting to run on, adjust tyre pressures.

THIRD TIMED OUTING.
Accellerator was sticky coming off idle..... push....push harder.....pusher harder still.....then it's all there! Plus it was hanging on to it's revs.

Result?

180 at turn 4 and back to pits for an undie change. :blink2:

BREAK
Fiddle fiddle..........fiddle fiddle...........drop rear tyre pressures to 26psi

The car went it's best for the day in the last stint but by then the timing blokes has gone home. :banghead:

CONCLUSION
Accelerator linkage set-up is crap. I can't find a medium between progressive application while still maintaining full throttle and idle. The levers on the common shaft pull in an opposite direction of rotation to the butterfly shafts and are not a parallelogram. :Headbang2: