Yeti 2.5tfsi The Twins. (And Yeti RS)

[TrevorB33]

It’s annihilating Facebook servers as we speak. it’s on 8k views the video on the rollers  already, and was posted 6hrs ago

Edited 25 September, 2018 by TrevorB33

[tigger73]

17 hours ago, TrevorB33 said:

It’s annihilating Facebook servers as we speak. it’s on 8k views the video on the rollers  already, and was posted 6hrs ago

 

Link???

[BossFox]

So, here I am. 

 

Yesterday it the old girl ran on the RR at Surrey Rolling Road and it managed 723bhp.

Which is impressive, but there is more to it than that...  I'll explain.

 

 

 

I have low and high boost in road fuel and race fuel.

723bhp is race fuel, it makes around 680 on road fuel.

 

BUT... it's not reached it's full potential.

At the top end it's running 1.7bar of boost, but it's capable of 2.0bar.

But to get the benefit of the extra boost it needs a few more tweaks and possible water/meth injection.

 

For now we are going to use it as it is, they told me it's "silly fast" so we'll use it at 723bhp at 1.7bar and see how it is.

If needed we can do a bit of winter tweaking.

 

Currently I'm not sure if I will, as my desire was for 700+bhp, and we are there now.

So let's see how it copes with the power and how the gearbox does first.

 

I am so happy we have got this far.

To me, it now really is a Brisk Skoda.

Can't wait to try it out on track.

 

723bhp.

1300kg.

556bhp per tonne.

Edited 26 September, 2018 by BossFox

[TrevorB33]

Bonkers Richard!! a credit to your vision. Surely that’s got be the most bhp Skoda ever? Even the bonneville record Octy I don’t think had that. Edit a quick google reviealed it had 600bhp ish

Edited 26 September, 2018 by TrevorB33

[BossFox]

44 minutes ago, TrevorB33 said:

Bonkers Richard!! a credit to your vision. Surely that’s got be the most bhp Skoda ever? Even the bonneville record Octy I don’t think had that. Edit a quick google reviealed it had 600bhp ish

 

Not sure, there was a twin engine Octy that was good at running drag times.

[shyVRS245]

5 minutes ago, BossFox said:

 

Not sure, there was a twin engine Octy that was good at running drag times.

It had a race spec 2.0litre turbo pushing out 600bhp and recorded a time of just over 200mph at Bonneville.

[Dark_Hero]

Truly impressive Richard. At least at 1.7 bar should keep it in safe parameters

teally looking forward to Snetterton now. See what this can really do

[Ootohere]

OT but they say 'Supercharged' as though Skoda had Supercharged Production Octavia.

 

 

 

[greenstripe]

Amazing achievement - will the drive-train cope with the power? I know you've had work done there too

[BossFox]

15 hours ago, shyVRS245 said:

It had a race spec 2.0litre turbo pushing out 600bhp and recorded a time of just over 200mph at Bonneville.

 

I was thinking of the blue mk2 VRS from Eastern Europe that runs quarter miles in about 11 seconds, same as a stock GT-R.  It had an extra engine in the back.  Just under 800bhp apparently from both engines.

Guess it must be heavy though, CarThrottle claimed 0-120mph in 9 seconds.

 

8 hours ago, greenstripe said:

Amazing achievement - will the drive-train cope with the power? I know you've had work done there too

 

We will see.

In America they have run some serious power in the 2.5 5cyl, but the only cars having issues ran a Single Mass Flywheel like me.

We've now gone back to Dual mass to take out the shock loading that hurts the 1st/2nd syncro.  Other than that the gearbox was always fine.

 

Snetterton will be something of a test and shakedown day, so I'll take another car just in case we run into teething issues.

[Skoda_Saint]

Absolutely frigging gobsmacked by this car. To think this was only a side project from the citigo…. an amazing credit to the hard work put in, of course money, but nobody but you would've created a car like this. Truly a monster in it's previous incantation now it'll be mind boggling quick... sick bags at the ready methinks!?!  

[widdershins]

On 17/11/2015 at 20:36, BossFox said:

Yeti panels arrived today.

 

 

Quality is good.

Some small imperfections but nothing serious.

 

 

 

 

Plan now is to get them on the car and then painted to keep the stealth look.

 

Just going to paint the outside so the carbon will be visible when the door or bonnet is open, which I think is a nice touch and shows what the car really is to those that have a close look.

Just got to the (current) end of this epic tale tonight.  I had a good time reading about what happens when someone goes a little OTT with their performance tweaking.

 

Perhaps for a laugh at the next Track day fit a tow bar, bring a stickered up competition Porche/Skyline/Evo on a trailer, then go round in the Yeti with the trailer (plus load) still attached and overtake the other Porches and Evos?

 

I saw the comments about the Skyline racer in the last few pages, does it have a sicker in the back window that says "My other car is a Yeti - and  it's also faster than yours!"

 

I caught sight of a couple of background things in the above post which made me chuckle a bit.  Firstly the crate in the top photo where the new door panels are.  I presume there's a Russian Oligarch out there somewhere doing to a Lada what BossFox did to a Skoda?  I expect the crate was returned when it was discovered the wrong one had been sent and it contained carbon fibre doors for a Niva, or perhaps that is Richard's next project?  If people are stunned getting overtaken by a Yeti what about when the rusty 30 year old Niva with the numberplate Lad4 turns up and does the same.

 

Secondly in the bottom picture taken in the workshop laboratory where Igor builds Doctor Foxenstines monster I see no chances were being taken with break-ins to the facility, in the bottom right corner of the bonnet, the labs security system is reflected.  It looks like a very big, very angry version of the hound of the baskervilles.

 

Keep up the good work Fantastic Mr Fox it's been an interesting and amusing thread!

Edited 2 October, 2018 by widdershins
Speeling ;-)

[AMD87]

On 26/09/2018 at 15:12, shyVRS245 said:

It had a race spec 2.0litre turbo pushing out 600bhp and recorded a time of just over 200mph at Bonneville.

Wrong car

On 27/09/2018 at 06:39, BossFox said:

 

I was thinking of the blue mk2 VRS from Eastern Europe that runs quarter miles in about 11 seconds, same as a stock GT-R.  It had an extra engine in the back.  Just under 800bhp apparently from both engines.

 

You're short by about 400bhp 

 

[BossFox]

18 hours ago, AMD87 said:

Wrong car

You're short by about 400bhp 

 

I was guessing, knew it was more than 720 though.

[AMD87]

1 hour ago, BossFox said:

 

I was guessing, knew it was more than 720 though.

Would be interesting to see it on a prepped track that’s for sure. 

[BossFox]

3 minutes ago, AMD87 said:

Would be interesting to see it on a prepped track that’s for sure. 

 

It seems to be mostly set up for drag racing and I'm sure it's very quick.

GT-Rs with that power are running 8-9 seconds.

[BossFox]

After adding a lot of extra go, and reducing weight, we are also adding a bit of extra stopping power.

With bonus rotating weight savings!

 

 

[penguin17]

1 minute ago, BossFox said:

After adding a lot of extra go, and reducing weight, we are also adding a bit of extra stopping power.

With bonus rotating weight savings!

 

 

Personalised 

[AMD87]

17 minutes ago, BossFox said:

 

It seems to be mostly set up for drag racing and I'm sure it's very quick.

GT-Rs with that power are running 8-9 seconds.

When are we seeing a twin engined 1500bhp yeti 

[BossFox]

29 minutes ago, AMD87 said:

When are we seeing a twin engined 1500bhp yeti 

 

Never, the Yeti was always made for track/road.  Never for drag racing.

You don't need that kind of power for a track day.

Edited 15 October, 2018 by BossFox

[john999boy]

21 hours ago, BossFox said:

After adding a lot of extra go, and reducing weight, we are also adding a bit of extra stopping power.

With bonus rotating weight savings!

 

 

Only just spotted the subtle etching on the disk - additional weight removal? 

[shyVRS245]

Do need carbon pads to work with these ceramic discs?

[BossFox]

On 16/10/2018 at 07:37, shyVRS245 said:

Do need carbon pads to work with these ceramic discs?

 

Not special ones.

We will be running Pagid RS29 pads as recommended by the disc supplier.

There is a specific bedding in procedure with carbons to transfer friction material on to the disc for optimum performance.

So with their suggestion of pad and procedure we should be good to go soon!

[shyVRS245]

1 minute ago, BossFox said:

 

Not special ones.

We will be running Pagid RS29 pads as recommended by the disc supplier.

There is a specific bedding in procedure with carbons to transfer friction material on to the disc for optimum performance.

So with their suggestion of pad and procedure we should be good to go soon!

Can't wait to see it at Snetterton next Monday and if you change your mind about taking my SLOW (335bhp) Octavia for a couple of laps then your very welcome.

[BossFox]

First shakedown day at Snetterton on the Brisky track day.

Since the car was last out three years ago it's had the following changed.

 

Forged engine with cams allowing it to rev to 8,200.

Dual mass flywheel to stop the synchros failing.

Bigger Turbo

Twin injector manifold

Syvecs ECU to run everything.

Carbon ceramic brake upgrade.

Carbon bonnet, tailgate and four door.

Additional roll cage bars do to carbon door for safety.

 

End result, we have gone from 510bhp to 723bhp.  And lost almost spot on 100kg.

But what I found interesting was the additional revs means it now has a wider powerband despite the extra 210bhp.

It comes in quite well around 3,000-3,500 and then absolutely flies with no let off to 8,000.  So it has over 4,000rpm of solid thrust.

 

The day went well.

A few mapping issues were sorted early on, then we found right at the top end at the end of the long back straight it was dropping fuel pressure a little.  To protect it the Syecs ECU was then putting it into limp mode.

JDR brought a new fuel pump just in case and this was soon fitted.

As the track dried out the extra grip caused a fuel smell that was soon traced to a seal on top of the tank, which was temporarily fixed to get us through the day until a new one could be fitted.

Then we had another limp mode creep in as the car got down to a third of a tank of fuel.  This was quite simply the standard tank and pick up struggling under the force of the acceleration and filling the car solved it.

 

Overall it was a great day.  Not only because after so much work and time the Yeti performed all day.  It was also a really good track day with lots of great people that made it a fun day and drove well with minimal issues and stoppages.

 

Plan is now to fit a new tank or modify the existing one with a different pick up system and swirl pot.

And a little bracing for the polycarb screen as it deformed slightly as we hit 152mph at the end of the straight.

 

It really hit me driving home Monday what a project this turned into.

It's such an amazing car to drive, still fun with plenty of driver fell and interaction.  But the way it piles on speed from 4000rpm means you just launch past people that a second before you were following at the same speed.

And on top of all that we have pretty much managed to keep that Yeti look.

 

Right, that's enough waffle.  I'll put a few videos up later.