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Author Topic: Clutch tech  (Read 103464 times)
Silversoar
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« Reply #180 on: April 19, 2016, 21:58:34 pm »

 Cool

Thanks for reply!

Thomas H
Barbapapa Racing
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broen messiaen
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Posts: 128


« Reply #181 on: April 21, 2016, 17:56:16 pm »

Got my clutch management installed and bleeded.
Let's hope it works good
 



Verzonden vanaf mijn iPhone met behulp van Tapatalk
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Typ3racing
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Posts: 41



« Reply #182 on: January 15, 2017, 17:43:23 pm »

 No clutch news anymore?

As i switched to an new engine, and had to make a new flywheel,

why not a  new clutch also?

After a lot of problems its working now. Grin

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Erlend / bug66
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« Reply #183 on: January 15, 2017, 22:51:59 pm »

All this talk about custom clutches..  Smiley

My stage 4 + thick Black Magic (and CMS) went 1.441 60-foot at SCC2016. Full steel car. 215/65-15 DOT's.

No need to make it custom or difficult  Roll Eyes
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The '67:
10.626 @ 132mph, SCC 2016
10.407 @ 134mph, SCC 2017
10.221 @ 135mph, SCC 2018

The '59:
Not yet..
richie
Hero Member
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Posts: 5547



« Reply #184 on: January 16, 2017, 09:38:46 am »

All this talk about custom clutches..  Smiley

My stage 4 + thick Black Magic (and CMS) went 1.441 60-foot at SCC2016. Full steel car. 215/65-15 DOT's.

No need to make it custom or difficult  Roll Eyes

It will be when you want to go fast Cheesy Grin  and I thought you had day moulding wings on that car?
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
Trond Dahl
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« Reply #185 on: January 16, 2017, 12:44:46 pm »

All this talk about custom clutches..  Smiley

My stage 4 + thick Black Magic (and CMS) went 1.441 60-foot at SCC2016. Full steel car. 215/65-15 DOT's.

No need to make it custom or difficult  Roll Eyes

It will be when you want to go fast Cheesy Grin  and I thought you had day moulding wings on that car?
Thats probably why he wenter 0.07 faster ... :-D
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Street car 10.67/206kmt@Kjula 2014
Race car 9.49/236kmt@SCC 2017

Typ3racing
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Posts: 41



« Reply #186 on: January 16, 2017, 13:02:36 pm »

The goal is to reach 1.3..  Shocked

With 2500lbs car(and driver)
1.7l Turbo engine.

IMHO its better to have more rotating mass to get the car launch properly.
In comparison to the Subaru/AP Clutch-flywheel crankshaft assembly now i got 15kg more weigt.

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Basti
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« Reply #187 on: January 16, 2017, 13:08:26 pm »

15 kg???
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Typ3racing
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« Reply #188 on: January 16, 2017, 14:10:11 pm »

15 kg???

Yes.

+8kg Crankshaft
+7kg Clutch/Flywheel
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Erlend / bug66
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« Reply #189 on: January 16, 2017, 14:42:39 pm »

All this talk about custom clutches..  Smiley

My stage 4 + thick Black Magic (and CMS) went 1.441 60-foot at SCC2016. Full steel car. 215/65-15 DOT's.

No need to make it custom or difficult  Roll Eyes

It will be when you want to go fast Cheesy Grin  and I thought you had day moulding wings on that car?

Ok. Heavy steel car but day mouldings.. and a heavy steel 6-point cage. And real glass!

I even have a roof!  Grin
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The '67:
10.626 @ 132mph, SCC 2016
10.407 @ 134mph, SCC 2017
10.221 @ 135mph, SCC 2018

The '59:
Not yet..
richie
Hero Member
*****
Posts: 5547



« Reply #190 on: January 16, 2017, 16:55:15 pm »

All this talk about custom clutches..  Smiley

My stage 4 + thick Black Magic (and CMS) went 1.441 60-foot at SCC2016. Full steel car. 215/65-15 DOT's.

No need to make it custom or difficult  Roll Eyes

It will be when you want to go fast Cheesy Grin  and I thought you had day moulding wings on that car?

Ok. Heavy steel car but day mouldings.. and a heavy steel 6-point cage. And real glass fiber !

I even have a roof!  Grin


 Cheesy 

 I have a roof on my 67 to, similar car to yours as well Tongue   only went 1.45 60ft though, maybe with some C/M it will go quicker Grin
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
Erlend / bug66
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« Reply #191 on: January 16, 2017, 17:18:24 pm »

All this talk about custom clutches..  Smiley

My stage 4 + thick Black Magic (and CMS) went 1.441 60-foot at SCC2016. Full steel car. 215/65-15 DOT's.

No need to make it custom or difficult  Roll Eyes

It will be when you want to go fast Cheesy Grin  and I thought you had day moulding wings on that car?

Ok. Heavy steel car but day mouldings.. and a heavy steel 6-point cage. And real glass fiber !

I even have a roof!  Grin


 Cheesy 

 I have a roof on my 67 to, similar car to yours as well Tongue   only went 1.45 60ft though, maybe with some C/M it will go quicker Grin

1,45!!! That's slow man  Grin Tongue

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The '67:
10.626 @ 132mph, SCC 2016
10.407 @ 134mph, SCC 2017
10.221 @ 135mph, SCC 2018

The '59:
Not yet..
richie
Hero Member
*****
Posts: 5547



« Reply #192 on: January 16, 2017, 17:39:51 pm »




1,45!!! That's slow man  Grin Tongue



Yep but ok for a cable and no tricks or fancy stuff like C/M  Shocked, and still went 10.42 so something works Wink Cheesy
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
Erlend / bug66
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« Reply #193 on: January 16, 2017, 22:27:52 pm »




1,45!!! That's slow man  Grin Tongue



Yep but ok for a cable and no tricks or fancy stuff like C/M  Shocked, and still went 10.42 so something works Wink Cheesy

You should bring the white car to SCC! Then we could have a big power adder '67 matchup!

Torgeir, you and me. Closest one to 9.99 wins a cup of tea?
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The '67:
10.626 @ 132mph, SCC 2016
10.407 @ 134mph, SCC 2017
10.221 @ 135mph, SCC 2018

The '59:
Not yet..
richie
Hero Member
*****
Posts: 5547



« Reply #194 on: January 17, 2017, 09:52:16 am »




1,45!!! That's slow man  Grin Tongue



Yep but ok for a cable and no tricks or fancy stuff like C/M  Shocked, and still went 10.42 so something works Wink Cheesy

You should bring the white car to SCC! Then we could have a big power adder '67 matchup!

Torgeir, you and me. Closest one to 9.99 wins a cup of tea?


So if I go 9.80 and you run 10.05 you win? doesn't seem right Grin  Wont be this year as Drag week will take all my budget up
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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
Jyrki
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« Reply #195 on: January 17, 2017, 10:02:53 am »

So it must be the fiberglass that makes all the difference  Tongue
My old '65 street car with fiberglass body parts ran a best of 1.29 on dot tires, stage 3 + black magic. The chassis car has a tricky clutch and real slicks, but is slower to 60ft. BUT it is 100% steel  Grin
Jyrki
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Erlend / bug66
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« Reply #196 on: January 17, 2017, 23:45:11 pm »




1,45!!! That's slow man  Grin Tongue



Yep but ok for a cable and no tricks or fancy stuff like C/M  Shocked, and still went 10.42 so something works Wink Cheesy

You should bring the white car to SCC! Then we could have a big power adder '67 matchup!

Torgeir, you and me. Closest one to 9.99 wins a cup of tea?


So if I go 9.80 and you run 10.05 you win? doesn't seem right Grin  Wont be this year as Drag week will take all my budget up

Haha, well.. Best ET wins  Grin

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The '67:
10.626 @ 132mph, SCC 2016
10.407 @ 134mph, SCC 2017
10.221 @ 135mph, SCC 2018

The '59:
Not yet..
richie
Hero Member
*****
Posts: 5547



« Reply #197 on: January 18, 2017, 11:00:40 am »

So it must be the fiberglass that makes all the difference  Tongue
My old '65 street car with fiberglass body parts ran a best of 1.29 on dot tires, stage 3 + black magic. The chassis car has a tricky clutch and real slicks, but is slower to 60ft. BUT it is 100% steel  Grin
Jyrki

 Grin Very good 60ft for DOTs on your old car, this year your steel car should 60ft better than that though  Smiley

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Cars are supposed to be driven, not just talked about!!!   


Good parts might be expensive but good advice is priceless Wink
kraftkaefer
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« Reply #198 on: December 06, 2017, 06:27:24 am »

Hi clutch experts  Grin

Want to use the McLeod 8" clutch cover with B/M Disc for my 3.0 Pauter (hoping for 300hp  Huh).

For the clutch setup i have a steel pressure ring made by Pauter and a aluminum ring (Picture) here. Which one would you use, some experience with distortion on the light one?


Thanks for helping!
Stefan
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www.kraftkaefer.de
FULLA GROFFD Drag Racing
Airspeed
Hero Member
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Posts: 591



« Reply #199 on: December 06, 2017, 11:20:09 am »

I think a steel (rubbing) ring is usually used, in order to use an alu flywheel (not the other way around?)?

My recent update with two new and mostly thicker plates, which meant I could remove my steel ring alltogether (hence the small holes where the attachment screws were):



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"...these cars were preferred by the racers because the strut front suspension results in far superior handling than the regular torsion bar front end..."  - Keith Seume.
11.06 @ 125 mph
bedjo78
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« Reply #200 on: December 06, 2017, 12:29:18 pm »



what dual discs ? where you bought them ?
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Airspeed
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« Reply #201 on: December 06, 2017, 14:27:22 pm »



what dual discs ? where you bought them ?
Tilton.
As I use a G50 transmission, which has the same spline as Mendeola, these have 23x 1" spline.
Bought in the US online at one of the big race part shops, forgot the name atm, but will post it later for you Wink
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"...these cars were preferred by the racers because the strut front suspension results in far superior handling than the regular torsion bar front end..."  - Keith Seume.
11.06 @ 125 mph
Eddie DVK
Hero Member
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« Reply #202 on: December 07, 2017, 00:10:53 am »

Airspeed, that is a very light flywheel  Shocked is it a 200m?
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Regards Edgar

" Type 4, it is a completely different engine. You have to drive one to understand! "
Airspeed
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« Reply #203 on: December 07, 2017, 14:10:26 pm »

Airspeed, that is a very light flywheel  Shocked is it a 200m?
4,2kg; its a chinese chro-mo 200mm version, but the disks are only 177mm outer diameter (inch size converted), but the inside minimum diameter of the disks exactly fits the 200mm parth of these flywheels, which is pretty lucky/briljant if you ask me :-)
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"...these cars were preferred by the racers because the strut front suspension results in far superior handling than the regular torsion bar front end..."  - Keith Seume.
11.06 @ 125 mph
MeXX
Hero Member
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Posts: 525


World record holder 8.733 @ 255.658


« Reply #204 on: April 29, 2021, 07:45:47 am »

Hi volks...

Found a nice video of a TF clutch...
enjoy ....

<a href="http://www.youtube.com/v/1V6nBdiK118" target="_blank">http://www.youtube.com/v/1V6nBdiK118</a>
« Last Edit: April 29, 2021, 11:49:57 am by MeXX » Logged

Drag or Die
kraftkaefer
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« Reply #205 on: April 29, 2021, 08:07:37 am »

Servus Martin,

looks good.
Do you use still the single clutch on your setup ?


Stefan
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www.kraftkaefer.de
FULLA GROFFD Drag Racing
MeXX
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World record holder 8.733 @ 255.658


« Reply #206 on: April 29, 2021, 08:22:08 am »

Servus Martin,

looks good.
Do you use still the single clutch on your setup ?


Stefan

Hi Stefan...

Yep still single disc setup.... even more... to keep the package tight and light it is a double disc  (6,5mm thick) used as a single disc...
Although higher launch RPM +9000.... is causing significantly more wear.... especially on unprepared tracks like Zerbst, where I had to slipp the clutch 1.52s on the last run.....

MeXX
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Drag or Die
PPRMicke
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« Reply #207 on: April 29, 2021, 15:02:23 pm »

Hi
The thing about the clutch on an NA car is more sensitive
Than on a car that has a boost
If you are going to use the clutch Infon in a VW, you should look at prostock what they do with it
After being C C in prostock (v8) (promod) o love Vw (pro stock about 1500 hp o 1066kg) When we started to use that knowledge in a NA vw the numbers went down to 60 and Et
What we started to do was go there with a heavy flywheel because the power on the engine is not enough to use the slip in the clutch
We went from 1.44 to 1.38 then with a lot of adjustment we were down to 1.34
Since you measure your slip pressure on the clutch, it is very important
Uploads a film of how we work with clutch in the prostock world
Seeing Topfuel is not right because you have too much effect so you remove type 8000hp on the starting line in the clutch Same with promod where we can remove 2000 hp in the clutch
/// Micke
https://www.youtube.com/watch?v=QggcByD3Njs&ab_channel=NHRA
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Christiano
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Posts: 57


« Reply #208 on: April 29, 2021, 19:24:35 pm »

What we started to do was go there with a heavy flywheel because the power on the engine is not enough to use the slip in the clutch

This!
You either go with a really light combo (aluminum flywheel+steel friction surface) on a true CENTRIFUGAL clutch, like the prostock ones, or you go with a heavier flywheel on a conventional setup.
This will give you more momentum and really help to launch. You can even start leaving with a lower RPM to take it easy on the tranny and everything else.
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MeXX
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World record holder 8.733 @ 255.658


« Reply #209 on: May 01, 2021, 08:10:56 am »

Some pix of my actual clutch setup...
Before and after service...

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Drag or Die
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