dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
westi wrote:That's mad Alan.
What has Dave Been Up To? 29th AUG 2015: 10.66@126.09mph!!
Sides Veteran Volks Folk
2,220 posts · joined May 2007 ·
Nice !!!
Great to see an update DB.
👍
Great to see an update DB.
👍
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
humpty Bishop of Volkswagenism
3,336 posts · joined Sep 2002 ·
OMG Dave!..... Don't fall in whilst your finishing them off!!!!
Stanley I guess the reward is in the doing of it
4,523 posts · joined Mar 2003 ·
9 days til the 11th. Get them bolted on and out to Willowbank....😀
dragvw2180 Officially Full-On Dubber
393 posts · joined May 2006 ·
Wonderful work Dave , glad to see you were able to start back on your heads. What kind of increase in torque and HP do you expect from this combination as compared to what you have now, or are these for the bigger combo with BERTHA ? Mike
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Plan is for these to be fitted to the current engine.
I have some new JE pistons that I ordered from Summit,
so they will need notches.
Pushrods will also have to be made, and probably tubes as well.
I am aiming for mid tens,
so I am not sure how much more power i will need, perhaps another 25?
The comp ratio I want is in the 15 area,
and port cross sections and valves sizes are all to be reduced to try and increase the torque,
or atleast gie me a wider rev range of the same torque number.
I have some new JE pistons that I ordered from Summit,
so they will need notches.
Pushrods will also have to be made, and probably tubes as well.
I am aiming for mid tens,
so I am not sure how much more power i will need, perhaps another 25?
The comp ratio I want is in the 15 area,
and port cross sections and valves sizes are all to be reduced to try and increase the torque,
or atleast gie me a wider rev range of the same torque number.
westi wrote:That's mad Alan.
dragvw2180 Officially Full-On Dubber
393 posts · joined May 2006 ·
I think I understand, higher compression and smaller ports will increase the speed of air mixture resulting in more torque. Are you going to use titanium vales on these heads? If so you may also be able to drop spring pressures and reap a few lost HP there also. Thanks Dave I always like following your posts and always learn something.
Mike
Mike
humpty Bishop of Volkswagenism
3,336 posts · joined Sep 2002 ·
Totally...dragvw2180 wrote:... Thanks Dave I always like following your posts and always learn something.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Exhaust Ports are completed:
Here's what they started like:
Throating out the seat size:
Tilted the head slightly to favour the thick part of the casting/
The exhaust port was indexed at 9 degrees to match the valve guide angle.
Here's what they started like:
Throating out the seat size:
Tilted the head slightly to favour the thick part of the casting/
The exhaust port was indexed at 9 degrees to match the valve guide angle.
westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Just need to make some valve guides, cut the seats and do the chambers and it will be time for he flow bench:
For reference, here's what they looked like at the begining:
westi wrote:That's mad Alan.
reub VWRX is gone...
2,054 posts · joined Sep 2002 ·
nothing like some volksporn - I think even 14yo boys would hae sore wrists over this stuff... hahaha - wonder where I read that
Reub
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Made a tool with a 40 degree top cut angle, and radius for the seats.
I plunged down to a clean up point within the chamber, and then blended in the surrounding areas.
The inlet seat,(50 degrees) will be cut down onto this area,
and the 40 degree part will become the top cut for the seat.
The chamber around the inlet seat has a convex shape.
The area around the exhaust will have a concave shape
since it is still 45 degrees seat angle,
and I used the same tool to clean the chamber floor and seat.
It will eventually have a 35 degree top angle that will be blended into the surrounding chamber like the pictures.
I plunged down to a clean up point within the chamber, and then blended in the surrounding areas.
The inlet seat,(50 degrees) will be cut down onto this area,
and the 40 degree part will become the top cut for the seat.
The chamber around the inlet seat has a convex shape.
The area around the exhaust will have a concave shape
since it is still 45 degrees seat angle,
and I used the same tool to clean the chamber floor and seat.
It will eventually have a 35 degree top angle that will be blended into the surrounding chamber like the pictures.
westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
westi wrote:That's mad Alan.
humpty Bishop of Volkswagenism
3,336 posts · joined Sep 2002 ·
Dang those are some massive holes!!!!😁
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Actually, all the holes have been reduced in size when compared with my Pauter heads.humpty wrote:Dang those are some massive holes!!!!😁
That being said, the valves are still 53.34 x 39.37mm.
westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Once i have the valves,
I can cut the seats and flycut the heads for compression.
How far I actually go will depend on the piston crown, and how deep the notches can be.
Would like to get 15:1 comp this time.
I can cut the seats and flycut the heads for compression.
How far I actually go will depend on the piston crown, and how deep the notches can be.
Would like to get 15:1 comp this time.
westi wrote:That's mad Alan.
bat69 There is no status
791 posts · joined Apr 2005 ·
I love those big 'holes' although there appears to be not much meat between those intake ports. It wont suck in gaskets will it?
White Knuckle Racing Team [/i]
"Drive it like dirt"
"Drive it like dirt"
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
No gaskets.
Loctite 515.
Loctite 515.
westi wrote:That's mad Alan.
66deluxe Custom Title Time!
1,593 posts · joined Aug 2005 ·
Had a nice look at these the other day. Very nice.
This is my Volkswagen, there are many like it, but this one is mine. Without me my Volkswagen is useless, without my Volkswagen, I am useless.
61 Karmann Ghia 2110cc type1 w Los Panchito's
66 Deluxe Beetle 2270 type 4
10 Subaru WRX Impreza
61 Karmann Ghia 2110cc type1 w Los Panchito's
66 Deluxe Beetle 2270 type 4
10 Subaru WRX Impreza
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Deck height with new pistons.
Head will get a .015" step.
Checking piston to valve clearance.
Or should i say piston IN valve clearance?
first piston notch steps:
Old 12" lathe chuck and sleeve an pin that I used to hold the piston for notching.
Head will get a .015" step.
Checking piston to valve clearance.
Or should i say piston IN valve clearance?
first piston notch steps:
Old 12" lathe chuck and sleeve an pin that I used to hold the piston for notching.
westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Second cut, and tool to determine the point of minimum thickness.
westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Modifying the old exhaust.
Once I cut off the old flanges,
the 1 7/8 pipe fits snuggly into the new stubs.
Once I cut off the old flanges,
the 1 7/8 pipe fits snuggly into the new stubs.
westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
This is a shot after I roughed out another 5mm for compression.
Total flycut so far is 7.75mm.
Total flycut so far is 7.75mm.
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 ·
Looking good mate? Any estimates on HP increase and how much these will change your torque curve? Obviously top will be killer!!!
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!!
Stanley I guess the reward is in the doing of it
4,523 posts · joined Mar 2003 ·
nice work Davo....someones been busy
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
No Idea actually,LIFE IN THE LOW LANE wrote:Looking good mate? Any estimates on HP increase and how much these will change your torque curve? Obviously top will be killer!!!
until I flow them, and sort out what compression I will have.
At this stage it looks like I will not even
acheive the same compression ratio that I have now.
The valve lift is .762 with soft springs,
and i have the valve notches as deep(nearly) as i dare.
As I suggested earlier,
the initial goal is to try for some 10.5's so this will equate to about 275 FW HP, or about 245 to the wheels
westi wrote:That's mad Alan.
matberry Moderator Go hard or go home
8,114 posts · joined Mar 2006 ·
Nice work as usual Dave
👍
👍
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 ·
Making room:
westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
For these:
westi wrote:That's mad Alan.