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Home > General Chat > pre-verto stuff vs verto stuff

vrooom

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Which is better for holding the power?

and why it changed over to verto ?

Pre-verto flywheel can fit into verto starter ?

Worth the money?


Carl

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liverpool-on-sea

all will be answered with a search.

pre verto will be better for more power. if you buy a new flywheel then you should be able to specify either a pre verto or verto ring gear fitted to the flywheel so you can use you existing starter.

again search search and search*tongue*

no longer a series, but still 1.3 turbo.

On 28th Nov, 2008 Sprocket said:
Oh now that is a long shaft you have Carl.


stevieturbo

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Northern Ireland

The verto is a more modern design and should work better.

Unfortunately the aftermarket tuning companies didnt bother pushing any development in terms of uprated clutches.

That said, all verto's are not equal. Some may have bad bad luck...I know I found a cover that worked exceptionally well ( along with a paddle plate )

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will


Brocky

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Katy TEXAS

Turbodave is developing an uprated/ultimate verto at the moment.

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=11122

Even pre verto's run into problems with big power outputs as they use stronger springs to produce higher clamping loads, this in turn exhurts large thrust loads, during release as the release pressure required is much higher.

Turbodaves clutch is envisage to have the best of both worlds, ie good holding and relatively low release load requirement.

Personally I think the position of the slave cylinder for the verto setup is better as it sits further away from the turbo and isn't directly attached to the alloy F/W housing, and sits on a plate in fresh air.

Although a well lagged turbo and heat shield works well for the pre verto set up to.

Cheers

Brocky

Edited by Brocky on 10th Oct, 2006.

BTW - I took my buddy VTEC Pete out for a spin this weekend, and even though I am running her in, he gave it a name, the "Brocket"...cause I'm a brocket maaannn, nah nah nah nah nah nah nah nah nah nah nah....

Build thread - http://www.turbominis.co.uk/forums/index.php?p=vt&tid=7483

Katy Mini Owners Club Thread - http://www.turbominis.co.uk/forums/index.php?p=vt&tid=505552

Let's make sure you embarrass at least one VTEC MINI today !

https://www.facebook.com/groups/17557298589...096464253807802


stevieturbo

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Northern Ireland

Once I found a cover strong enough....I never had any clutch issues, other than the paddle ate the flywheel and cover during use.

I had to replace the paddle plate a few times, flywheel, and have a new friction surface fitted to the cover.

Even when badly worn, the setup still gripped though ( never down to the rivets or anything though )
Pedal was heavyish, but totally driveable, and it wasnt even that sharp for a paddle setup.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will


Paul S

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Formerly Axel

Podland

Stevie,

I'm hoping to stick with the verto for my mild 998 turbo.

Where did you find this strong cover?

Could you find it again?

Was it one of these with 0.090" fingers and a ring around the studs:

Edited by Paul S on 10th Oct, 2006.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


Brocky

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Katy TEXAS

Hey Axel,

This would probably do you for the milder tune 998,

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...300&ssPageName=

I managed to get mine for 55 quid !

At that price I think its cheaper than a new standard one,

Its supposed to be 30% uprated for the 1275
*happy*
Cheers

Brocky

BTW - I took my buddy VTEC Pete out for a spin this weekend, and even though I am running her in, he gave it a name, the "Brocket"...cause I'm a brocket maaannn, nah nah nah nah nah nah nah nah nah nah nah....

Build thread - http://www.turbominis.co.uk/forums/index.php?p=vt&tid=7483

Katy Mini Owners Club Thread - http://www.turbominis.co.uk/forums/index.php?p=vt&tid=505552

Let's make sure you embarrass at least one VTEC MINI today !

https://www.facebook.com/groups/17557298589...096464253807802


Paul S

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Formerly Axel

Podland

Brocky,

Did you ever manage to take some pictures of it and measure the fingers?

The one pictured is not a Verto for the A Series.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


Brocky

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Katy TEXAS


I'll take some pictures at lunch time...*smiley*


Need to get hold of a micrometer to do the fingers..

Cheers

Brocky

BTW - I took my buddy VTEC Pete out for a spin this weekend, and even though I am running her in, he gave it a name, the "Brocket"...cause I'm a brocket maaannn, nah nah nah nah nah nah nah nah nah nah nah....

Build thread - http://www.turbominis.co.uk/forums/index.php?p=vt&tid=7483

Katy Mini Owners Club Thread - http://www.turbominis.co.uk/forums/index.php?p=vt&tid=505552

Let's make sure you embarrass at least one VTEC MINI today !

https://www.facebook.com/groups/17557298589...096464253807802


Brocky

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Katy TEXAS


I'll take some pictures at lunch time...*smiley*


Need to get hold of a micrometer to do the fingers..

Cheers

Brocky

BTW - I took my buddy VTEC Pete out for a spin this weekend, and even though I am running her in, he gave it a name, the "Brocket"...cause I'm a brocket maaannn, nah nah nah nah nah nah nah nah nah nah nah....

Build thread - http://www.turbominis.co.uk/forums/index.php?p=vt&tid=7483

Katy Mini Owners Club Thread - http://www.turbominis.co.uk/forums/index.php?p=vt&tid=505552

Let's make sure you embarrass at least one VTEC MINI today !

https://www.facebook.com/groups/17557298589...096464253807802


matty

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Aylesbury

Going back to original question,the best clutch for holding power is th pre-verto hands down.

A verto may work for a while, but up the boost a little and you end up splahing your cash once again!

Untill Dave finalises his clutch design, pre-verto all the way. *wink*

Edited by matty on 11th Oct, 2006.

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1/4mile in 13.2sec @ 111 terminal on 15psi


Brocky

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Katy TEXAS

Axel,

http://www.turbominis.co.uk/_photos/random...os/425/2761.jpg

http://www.turbominis.co.uk/_photos/random...os/425/2762.jpg

Finger thickness = 2.38 ave.

Matty, couldn't agree more.

Cheers

Brocky

Edited by Brocky on 10th Oct, 2006.

BTW - I took my buddy VTEC Pete out for a spin this weekend, and even though I am running her in, he gave it a name, the "Brocket"...cause I'm a brocket maaannn, nah nah nah nah nah nah nah nah nah nah nah....

Build thread - http://www.turbominis.co.uk/forums/index.php?p=vt&tid=7483

Katy Mini Owners Club Thread - http://www.turbominis.co.uk/forums/index.php?p=vt&tid=505552

Let's make sure you embarrass at least one VTEC MINI today !

https://www.facebook.com/groups/17557298589...096464253807802


stevieturbo

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Northern Ireland



On 10th of Oct at 10:54am Axel said:
Stevie,

I'm hoping to stick with the verto for my mild 998 turbo.

Where did you find this strong cover?

Could you find it again?

Was it one of these with 0.090" fingers and a ring around the studs:


Cover was a fluke. It was a re-con Balco unit for a 1000cc Mini.

I had tried 2 genuine Rover turbo covers, as well as the original one that came with the base engine I used. None would take any boost at all. One was even out of balance !!!

I tried a couple of other used 1000cc covers I had from other engines, one wasnt bad, the other no better than the turbo covers.

Then I hunted through a local motor factors, basically jumping/pushing my weight on the fingers ( via the cup ) of all the covers they had in stock.
I picked the one that took the most effort to operate.
Some would literally operate under my own weight.
The one I ended up with needed me to jump on it to operate it.

As its still in the car, its been a while since I seen it.

But Im pretty sure it had the rivets with the steel ring around them as you picture.


I know many people havent had success with a Verto....but when I read the torque ratings of the pre-verto stuff, no way was I going to try one.

I can only guess at how much power I was making, but I dont think circa 180+bhp would be far off the mark.
Probably excessive fuelling, T3 and 20psi, and dizzy welded around 26deg I think. 7.5:1 CR, 4 star petrol and a little crude water/meth system, SW5 cam, and Swiftune head.
Its enough power/torque to have major traction issues below 70-80mph, and in the wet, every gear.

I'll maybe get my engine crane back this week, and start stripping my car, and get some pics, and perhaps try to measure pedal effort if nothing else.

Edited by stevieturbo on 10th Oct, 2006.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will


Paul S

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8604 Posts
Member #: 573
Formerly Axel

Podland



On 10th of Oct at 01:19pm Brocky said:
Axel,

http://www.turbominis.co.uk/_photos/random...os/425/2761.jpg

http://www.turbominis.co.uk/_photos/random...os/425/2762.jpg

Finger thickness = 2.38 ave.

Matty, couldn't agree more.

Cheers

Brocky


Well, that's the thickest yet at 0.094", but according to some old thread I read some time ago will still only handle around 90 ftlbs.

Looks the same as the Sachs one above but with some red paint.

Edited by Paul S on 11th Oct, 2006.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


Brocky

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Katy TEXAS

Sounds like its all down to the luck of the draw as to the torque capability by the sound of things, may be a factor tolerance ting

perhaps these guys test them to see that they do what they say ?

Red paint does it for me*smiley*

Its supposed to be 30% uprated for the 1275 turbo. I notice it has different springs in the plate also ??

I'll report the results if I ever get round to fitting it....

Edited by Brocky on 11th Oct, 2006.

BTW - I took my buddy VTEC Pete out for a spin this weekend, and even though I am running her in, he gave it a name, the "Brocket"...cause I'm a brocket maaannn, nah nah nah nah nah nah nah nah nah nah nah....

Build thread - http://www.turbominis.co.uk/forums/index.php?p=vt&tid=7483

Katy Mini Owners Club Thread - http://www.turbominis.co.uk/forums/index.php?p=vt&tid=505552

Let's make sure you embarrass at least one VTEC MINI today !

https://www.facebook.com/groups/17557298589...096464253807802


robert

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uranus

i think a lot of it comes down to the installed hieght, the same as the pre verto type , the supports on the flywheel may need to be machined to get the spring flat. i definately found this with the dual spring verto i made.
regards
robert

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

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