Some of you may know that my head gasket went last year, so I was faced with a decision. Repair the head gasket, or build a fully forged engine and make the big bhp car I've always wanted.

Well, I went with the big bhp option!

Barbz and I had conversations at length about what setup I was going for, and decided we were going to try and build the most powerful 2l 20vt to date. After a lot of deliberation, I went with a rather large turbo to say the least. Something most people would be afraid of even looking at as LAG springs to mind!

Not only that, but the pistons and rods were carefully chosen and the rest of the components to compliment the build. I must admit, it was pretty laggy before the car was mapped, but it didn't really bother me as I was always going for top end power, as that is what I enjoy.

Now, I've not driven the car yet, as I'm hopefully picking it up on Friday, but Flea said after mapping it spools surprisingly quick and he was very surprised by the results!

So it made 563bhp and 400lbsft at 8krpm.

But here's the thing - the power keeps climbing after this point, and Flea's dyno can only read up to 8krpm. So he effectively maxed out his dyno. This means it will make even more power at the top end. Flea has yet to finish tweaking the map on the road, and will raise the rev limiter a bit more , so it will be interesting to see what power it's capable of after that. Oh, and this was made on 97 Octane Texaco fuel.

For now, that's all I can say as I've not driven the car yet. Flea will do a write up as well about his experience, but to say I'm over the moon with the results is an understatement.

Barbz, you know I love you man, and I must say a massive thanks to Flea for actually listening to my requests of pushing certain elements of the car to where I was happy with it. If you want one of the quickest coupes around, only talk to these two guys.

Here is a short spec list.
- Precision Turbo 6262 with .82ar
- Precision Turbo 46mm external wastegate
- JE Racing super light custom forged pistons specced by Barbz
- Custom 3.5mm exhaust all the way from turbo back
- Helix 6 paddle clutch
- Torque Italia stage 4 head
- Aquamist DDS3 system
- Bosch 044 inline fuel pump with 2.5l surge tank with teflon fuel lines

Fu*k my life.

Well done.

Just well done.

Mega, another big bhp coupe well done

Does Barbz ever sleep

A 62/62 turbo?

Wow brill results, well a big thumbs to all of you. Well done

6262 turbo...upto 700bhp... Nice

Good Lord, mind boggling power!

Enjoy the rush

nice results pero, I know the turbo is designed for lots of boost......what are you runnning?

Wow! Bet it sounds amazing, i feel another tunnel run brewing!

Indeed, that turbo loves the boost! It's running around 2bar give or take.

Being different

Thanks for the link Marco

Gosh! Great work there!

Bring on another tunnel run Great work! Now book in for a respray

Looks Like Fleas League table is taking a battering this month

Wow another absolute beast! This is hilarious! Who's next?

Nice results. With you and JBT getting over 550BHP+ it seems everyone will have to up the ante to keep up Now, do I get a GT35

Seriously impressive stuff!

Wowzers, 3.5mm?!? It's a wonder the back pressure doesn't blow the block out from under the bonnet

I hope this beast will see some track time this year to truly see it's potential first hand? Spa?

How about Marco and the most under powered 20vt in the land

Oops, haha. That's meant to be 3.5"!

Sadly no track days for the car. Maybe in the future. I want to enjoy it first before breaking it on the track.

Well done especially with keeping to the 2.0 format

was that really needed!! kick a man down.com

all will be changed on the 22nd...

coupedummy.. your now on the abuse list

p.s that was harsh.

Brilliant Pero,this is proof that the 2.0 certainly can get the power if pushed.
If we were brave enough like the Vag and jap lads to push the limiter to 8500 and maybe 2.5 bar then this would do 600bhp without any issues.

Fantastic achievement to all involved

This will be one hell of a 1/4 mile car.

Now lets get to Santa pod and put down some good times.

Well done to all involved, it seems like headwork is definately a big part in big power.

its quite interesting to see the comparative differences between yours and JBT (the CC's, the torque figures, and the rev range etc)

Ninja

Oh i cant believe you just went there....

All this mocking of his car, and we haven't even started on his driving abilities yet

Autobahns? You can't enjoy it at 70mph With the power on boost at the top of 3rd and 4th and it will be pushing light speed.

Take it to Spa, and have the fun of your life upsetting the Fezzas and Lambos. Let Mayzon drive it there, the film would be something else I can hear it now "F*****g 'ave it, hahahahahahahahaha"

Epic job from all involved

Feeckers.

I was actually going to take mine up to 8.5k but got cold feet at the last minute!

fantastic acheivement, any dyno graphs

Well done!

This Coupe has certainly seen a few different specifications over the years. Obviously it started out as a factory standard 20vt, and then it received an FC Stage 1 remap (previous owner), followed by a Stage 3 GT28RS upgrade, and now... well I think this adequately reflects my face as I write

Pero took a bit of a gamble with his turbo choice. The Precision 6262 is a very popular turbo stateside, especially amongst the drag racing fraternity, but it is designed for high boost/high revving applications. How well does this transplant to a Coupe 20v turbo engine? Pretty darn good so far!

2.1bar
563bhp @ 7856rpm
397lbs/ft @ 6745rpm
501wheel power @ 7788rpm

1.95bar
541bhp @ 7858rpm
384lbs/ft @ 6833rpm
480wheel power @ 7661rpm



Of course we are reaching unknown territory for a number of reasons. First off the boost pressures are considerable for what is a standard block and head bolts! While I have on occasion run up to 2bar, this car is looking to spend most of it's life around the 2bar mark! We then enter the realm of high rpm using the stock valve springs etc, where is the limit here? Again, I have been running 7800-8000rpm for quite a few years now without issues, however with Pero's turbo the power is still climbing at 8000rpm, therefore the potential to go to 8250rpm, or even 8500rpm is there. Other issues to consider are oil pump capability at such high rpms, indeed there are many factory items still in place, which really is a testament to Fiat engineering!

Anyway, forget the tech stuff for the minute, how does it drive on the road? Epic! After extensive mapping, the driveability is really very good, especially for the turbo size. When you mash the throttle for big boost it's like the Millenium Falcon entering light speed, an elasticated pause before the sling shot takes place! I think you will enjoy it very much Pero

Oh and you may notice that it holds the boost very well indeed! 31psi (2.1bar) all the way to 8000rpm is a buzz in itself!

As for the dyno being maxxed out, well not quite! The rollers are limited to 245km/h (152mph), which for an already long 4th gear means a little under 8000rpm!

Pero! Nice to finally see some results! Congrats!

Cant wait for a spin, be in touch soon mate, sounds awesome!

Nice work Pero and all involved,yet more inspiring stuff for everyone else looking to modify!
Or perhaps your all just a bad influence giving others like myself ideas

The question now,is,what's your next goal?Or are you happy to keep her the way she is?

Perhaps this year we'll be seeing an army of monster coops coming out of the dark..the elite shall we say...

I'm yet to drive the car!

To be honest, I'm not sure I'd want to go any further with mine. I think I'll be happy with the power for a while yet.

I'm going to cry if I read any more threads about 400+ (now 500+) bhp coupes that aren't going to have their horses exercised properly on a large track or at least an autobahn (and I'll exclude the gearbox destroying drag strip but that's an option too!)

To me, it's all pub talk figures. When are you ever going to get anywhere near the top end of 3rd and for sure 4th anywhere else?

Great feats of building and tuning they most certainly are.

Or is it just me who cries inside when reading these, being the cantankerous git that I know I can be?

Oh I will get to the top end of 3rd and 4th, so don't get out your hanky just yet.

Get it down south and i'll be happy to offer my controlled high speed testing services also.

Totally amazing!! Would love a go in that!

The car has more power than mine before the boost has even kicked in!!

Wow... wow and WOW!!

Truly well deserved, as I know you have been hankering for a long time to achieve something stupendous!!

W E L L D O N E!!!

You and your coop are the stars in this production, with great directors and producers behind the story.

If it wasnt for the efforts of Barbz to push the new standard and Flea to map it, we would be still limited in coop achievements.

Truly happy for your fella and hats off truly to Barbz and Flea..just awesome!!

I did no such thing! I knew you would be able to make it work.

Question for Barbz/Flea/Biggenz:

With max boost available from approximately 5700 RPM, what is causing peak torque to be at approximately 6700 RPM? Is it the cams, the valves, the headwork or something else?

High boost heros is what it is.
How much boost and how big the minerals are.
By the way im looking forward to the videos

2.5 bar would see some fantastic power,but odds on you'll soon need some Biggenz if pushed much beyond.

2.1bar is idle stuff for that turbo. It's only just got going!!

I think everything is pretty much as far as I'd want to take it on the car. More boost will equal more power, but it will also mean clutch slipping, gearboxes breaking, blocks splitting and Pero crying.

Can't wait to drive it now! Hopefully it will be finished by tomorrow.

Keep it safe ish Pero for now...

Try not to think of gearboxes etc its all in aim off good fun......

Keep us posted on the drive home so we know how it feels?

Are intending on using it at the drag strip ?

I reckon I should at least give it a go at the 1/4 mile.

If you ever get down Santa Pod or the like mate, let me know and we can try and get a little convoy down if anyone on here is up for that (mini forum meet), including Barbz!

And JBT! That should be one interesting day.

Funnily enough these figures are not far off my old 2.0 "Cyprus" engine, 587bhp at 8000 (still climbing) and 388 lb.ft at 6800 - but at 1.6 bar. Like driving a turbocharged Integra!

I was always worried about doing those kind of revs on hydraulic tappets, not just the revs, but the rate of acceleration of the revs as mine was driven flat everywhere. So personally wouldn't recommend revving even higher to see what the power works out at without adding in a solid tappet conversion

But there are plenty more knowledgable than me on here !

OT : Trev, what's the latest with the engine / Kappa?

I'll PM you the gory details

part 2...

top result Pero

Hello Trevor

Wasn't your figure achieved on race fuel?

It was indeed, never ran the engine on anything else because it woiuld never be driven slowly

Was more making reference to the characteristics - turbo Integra style - rather than claiming victory in power output

When my 2.4 finally runs, won't be competing for outright power honours, looking for something more drivable (ie torquey) like the very first engine I ran which is still my favourite so far (have wrecked 5 so far)

If I remember correctly, your CR is 7:1 is it not? Shouldn't you be running more boost than 1.5bar and making more power?

I think Begbie ran out of injector capacity.

Really a wounderful result, congratulation.
In my opinion the 2l has the same maximum power output capability like the 2,4l - only difference is the response in lower revs, especially off boost.
In combination with a mechanical valve drive the 2l even should be capable to do more power than the 2,4l because of the high piston speed of the 2,4l at higher revs.
Is the CR of 7:1 right?! Then you still would have lot of room for even more power.
May I know what manifold you are using?! It cannot be the original one - you use an external WG, don't you?!
Thanks
Juergen

Hi Stichl,


Referring to Begbie's set up.



Yes, standard manifold with 45mm ext wg

7.2:1CR, but that's neither here or there. But as Rich said, my injectors maxed out, but this is down to the fuel pressure being 2.2BAR, which needs to be turned up anyway

Thanks for the information.
But now I am a little bit confused - Begbie uses 7,2:1 CR - this is clear now... therefore Begbie is able to run lots of more boost :-)
The standard manifold is the manifold from Biggenz, isn't it?
Did you install a block guard?!
I think the maximum end pressure will become critical at these power levels... this shows the experience from the our friends in Brazil...

Juergen

Yes I am indeed running the standard manifold with external wastegate.

seriously impressive stuff, Well done to all those involved.


I think its fair to say that i'm very jelious!

On the way to go and finally pick my car up now.

Hopefully I'll be able to report on the drive back home soon. Woo!

Looking forward to that report! Enjoy!

Sooo,what's she like???!