What's going on DB.
No posting for over 3 months. People might think your fitting that turbo. That's how rumours start.
Stanley I guess the reward is in the doing of it
4,523 posts · joined Mar 2003 ·
What has Dave Been Up To? 29th AUG 2015: 10.66@126.09mph!!
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Nothing much exciting Stanley.Stanley wrote:What's going on DB.
No posting for over 3 months. People might think your fitting that turbo. That's how rumours start.
I am conserving funds in the saving plan to get a milling machine.
So most likely the next time the car comes out of moth balls will be the VW Warwick event.
https://www.machineryhouse.com.au/Products?stockCode=M630D
westi wrote:That's mad Alan.
Stanley I guess the reward is in the doing of it
4,523 posts · joined Mar 2003 ·
I already knew that.
it's way to quiet so thought i'd try and get something happening.
You're always tinkering with something.
it's way to quiet so thought i'd try and get something happening.
You're always tinkering with something.
typethreeking Wolfsburg Wizard
621 posts · joined May 2008 ·
what about you stanley, what have you been up to, have you got your engine all sorted and back together..??
BEING ASPIRATED FEELS GREAT BUT BEING BLOWN TAKES THING TO A WHOLE NEW LEVEL....
Stanley I guess the reward is in the doing of it
4,523 posts · joined Mar 2003 ·
engines going back together now. I'll update my post when I stop being so lazy.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
OK, did some tinkering since I had a free afternoon.
I kept thinking how it would be nice to have the best of both worlds,
from my dyno graph a while back.
If you have a look at the blue line on the graph,
you can see how much extra power and torque it had
with the long ram tubes (with high nozzles) at lower RPM.
(5-5500rpm)...at which point it has over 200 at the wheels.
But it runs out of steam fast,
so I have left two short rams with the nozzle low down to get the power up at the 8000 plus area.(red line)
I kept thinking how it would be nice to have the best of both worlds,
from my dyno graph a while back.
If you have a look at the blue line on the graph,
you can see how much extra power and torque it had
with the long ram tubes (with high nozzles) at lower RPM.
(5-5500rpm)...at which point it has over 200 at the wheels.
But it runs out of steam fast,
so I have left two short rams with the nozzle low down to get the power up at the 8000 plus area.(red line)
westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Long ram tubes for max torque and short for max power at high rpm.
westi wrote:That's mad Alan.
LIFE IN THE LOW LANE All people have the right to stupidity but some abuse the pr
2,534 posts · joined Mar 2007 ·
Now if you could only make them adjustable on the move so they start off long and then shorten as you get more revs on the tacho....
ACCEPT THAT SOME DAYS YOU ARE THE PIDGEON AND SOME DAYS YOU ARE THE STATUE
Alder Outlaws VW Racing - check it out on fb!!
Alder Outlaws VW Racing - check it out on fb!!
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
I might add, that the length of the runner before was 13" from the top, to valve seat.
And the original long runner was 19".
so I have fudged each a little closer to each other and they are now 14" and 18".
The 14" is about the same as the common length with say,
IDA's on an autocraft or Comp Elim manifold.
I also changed the intake radius inside the tubes to a more tapered version about 9 degrees.
And the original long runner was 19".
so I have fudged each a little closer to each other and they are now 14" and 18".
The 14" is about the same as the common length with say,
IDA's on an autocraft or Comp Elim manifold.
I also changed the intake radius inside the tubes to a more tapered version about 9 degrees.
westi wrote:That's mad Alan.
bajachris88 The international telephone dialing code for Antarctica is 6
6,661 posts · joined Apr 2005 ·
is this all the same as making em long for the natural supercharging effect via the intake air speed being increased because the intake per cylinder is smaller?
And of course, shorter, for the increased volume in air at high rpm?
And of course, shorter, for the increased volume in air at high rpm?
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears. 👍
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta!
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears. 👍
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta!
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Not really to do with volumes or speed....although i am sure they contribute to some engine characteristics.
There are energy waves that flow through the charge , mainly from the opening and closing of the intake valve.
These are reflected and produced from the valve AND the top of the tubes(due to density change or reflectin at those points).
The various lengths help to cancel or amplify these pulses, some times for good and some times for bad.
Or at least that is my understanding.
Exhaust has te same pulses doing similar things, only at greater heat and volume.
There are energy waves that flow through the charge , mainly from the opening and closing of the intake valve.
These are reflected and produced from the valve AND the top of the tubes(due to density change or reflectin at those points).
The various lengths help to cancel or amplify these pulses, some times for good and some times for bad.
Or at least that is my understanding.
Exhaust has te same pulses doing similar things, only at greater heat and volume.
westi wrote:That's mad Alan.
polak Everything is alright with enough Vodka :P
913 posts · joined May 2009 ·
thats nutts... lol you take technical to a whole new level dave 🤪🤪dangerous wrote:Not really to do with volumes or speed....although i am sure they contribute to some engine characteristics.
There are energy waves that flow through the charge , mainly from the opening and closing of the intake valve.
These are reflected and produced from the valve AND the top of the tubes(due to density change or reflectin at those points).
The various lengths help to cancel or amplify these pulses, some times for good and some times for bad.
Or at least that is my understanding.
Exhaust has te same pulses doing similar things, only at greater heat and volume.
VW - helping put oil back into the ground for over 60 years
nasty Commited Dubber
65 posts · joined Jan 2009 ·
From what I make of it, the intake runner length comes into effect when the intake valve shuts, creating a high pressure area (from the incoming charge) behind the valve which sends an energy wave back to the inlet opening, then sending a reverse wave back towards the valve. If the intake runner length is optimum, the reverse wave will arrive at the valve when it is open, helping fill the cylinder. (Kind of supercharging effect) Only beneficial at a very narrow rpm range.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
That is a much better way to describe it Michael.
You can see in the orange curve above (up-down-up)
what happens when the engine parts (cam, heads etc) suit one rpm peak,
and the intake length suits another.
The orange curve had a peak at 6200 instead of 7800/8000 rpm.
The only change being the intake runner length.
You can see in the orange curve above (up-down-up)
what happens when the engine parts (cam, heads etc) suit one rpm peak,
and the intake length suits another.
The orange curve had a peak at 6200 instead of 7800/8000 rpm.
The only change being the intake runner length.
westi wrote:That's mad Alan.
polak Everything is alright with enough Vodka :P
913 posts · joined May 2009 ·
Thats brilliant Dave!!!!!! iv been trying to motivate myself to try and figure these little guys out and i wanted to make my own as well... thanks heaps for posting this stuff up, saves me alot of time and guess work🤓 thanks dave!!!!dangerous wrote:The next step was to find some doner chips to sacrifice.
These ones on the 9000 rpm scale will do fine.
I peel off the sticker, and inside is a precision resistor that I picked out, so that I can put in the replacement.
Based on my measurements with the multi meter, I got some resistors that were within my range,
and soldered them into the MSD carcass.
You can get these from Dick Smith or Tandy.
The legs are hollow, so I unsoldered the old, and installed the new.
Now all that was left was to try them in the car and test the limiter using the tach.
3.29 K Ohms was 4800 rpm.
3.58 K Ohms was 5100 rpm.
3.87 K Ohms was 5400 rpm.
and 4.22 K Ohms was 5800 rpm.
From the MSD chips that I had , 3000 chip measured 1.9 K Ohms and the 6000 chip measured 4.57 K Ohms.
It would have been quicker to just buy the correct chips from MSD, but I want to try a few different launch RPMs before I buy, plus I like to tinker too.
VW - helping put oil back into the ground for over 60 years
coletrickle Wolfsburg Wizard
661 posts · joined Apr 2009 ·
adjustable ram tubes were used on the le mans winning mazda 787 rotary back in 91 or 92 but you can just imagin the budget they had for that program!But knowing dave his budget is probally what the mazda team spent on breakfast at lemans(no disrepect intended dave)so we probally won't see any on daves car soon👎sniffle:
matberry Moderator Go hard or go home
8,114 posts · joined Mar 2006 ·
I believe the coletrickle budget is less than half that mentioned above 😂
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
couple of light springs up to the wing,
and some sliding tubes should do the trick.
and some sliding tubes should do the trick.
westi wrote:That's mad Alan.
Sides Veteran Volks Folk
2,220 posts · joined May 2007 ·
What would make them slide down against the spring... air pressure from the car moving, or is it just that the engine will be drawing that much more air through it would sort of suck them down ???dangerous wrote:couple of light springs up to the wing,
and some sliding tubes should do the trick.
VWDCQ vice pres & web dude - vwdcqinc.org.au
Join a car club - get car peeps
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Join a car club - get car peeps
My toys
'70 Hillclimb Bug 'Jezebel' w/- Haltech EFI - http://bit.ly/VwTNtQ
'60 KG Coupe - resto kinda started
01 New Beetle - gf's car, but I turn the spanners
grogy Custom Title Time!
1,000 posts · joined Aug 2007 ·
i wish i knew half of what i am reading.......... at least then i might be able to finish my car. awesome work dave, i wish i was in qld i drop car of at your place
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
That is the theory.Sides wrote:just that the engine will be drawing that much more air through it would sort of suck them down ???
But I am too lazy to actually do anything I think.
westi wrote:That's mad Alan.
Sides Veteran Volks Folk
2,220 posts · joined May 2007 ·
Right, OK - sounds reasonable I think.dangerous wrote:That is the theory.Sides wrote:just that the engine will be drawing that much more air through it would sort of suck them down ???
But I am too lazy to actually do anything I think.
Tell ya what tho, I'd have thought lazy was about the last word anyone would use to describe you dangerous !!!
VWDCQ vice pres & web dude - vwdcqinc.org.au
Join a car club - get car peeps
My toys
'70 Hillclimb Bug 'Jezebel' w/- Haltech EFI - http://bit.ly/VwTNtQ
'60 KG Coupe - resto kinda started
01 New Beetle - gf's car, but I turn the spanners
Join a car club - get car peeps
My toys
'70 Hillclimb Bug 'Jezebel' w/- Haltech EFI - http://bit.ly/VwTNtQ
'60 KG Coupe - resto kinda started
01 New Beetle - gf's car, but I turn the spanners
polak Everything is alright with enough Vodka :P
913 posts · joined May 2009 ·
probably seen it, but found this on youtube...
VW - helping put oil back into the ground for over 60 years
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
With only two months til Warwick I thought it was time to pull my finger out.
I plan to replace the single blade spring plates with dual ones from a type 3.
But because I use the short tortion bars, here is my plan.
I plan to replace the single blade spring plates with dual ones from a type 3.
But because I use the short tortion bars, here is my plan.
westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Then made up the "press on" ring to support the outer bush.
Just have to fit them now.
westi wrote:That's mad Alan.
polak Everything is alright with enough Vodka :P
913 posts · joined May 2009 ·
lol u always spin me out dave, the stuff you come up with 😂 love it, wish i had that sort of tuning knowledge, might have to pic your brain a little at warwick🤪 gorgeous welding, is that your handy work?
VW - helping put oil back into the ground for over 60 years
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
That's not gorgeous.
That is a normal stick weld.
That is a normal stick weld.
westi wrote:That's mad Alan.
polak Everything is alright with enough Vodka :P
913 posts · joined May 2009 ·
stick weld?!!!! lol i thought u did that with a mig!! hahaha damn i need to get some welding practice in that case😀
VW - helping put oil back into the ground for over 60 years
Boostn Wolfsburg Wizard
657 posts · joined Apr 2005 ·
it's all about strength hey Dave?
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Hi Nick,
yeah just a bit of extra resistance to flex I hope.
Not sure that it was a problem really,
but can't hurt.
Also, could not hurt to replace the rubber bushes with urethane!!
I could have sworn I had them in there already,
but looks like only the inner was urethane, and the outer was stock brazil rubber.
Not bad for mid 1.40 sixties.
yeah just a bit of extra resistance to flex I hope.
Not sure that it was a problem really,
but can't hurt.
Also, could not hurt to replace the rubber bushes with urethane!!
I could have sworn I had them in there already,
but looks like only the inner was urethane, and the outer was stock brazil rubber.
Not bad for mid 1.40 sixties.
westi wrote:That's mad Alan.