ST Tuning rear bumper addon

Zitat von stevep840;95192

[/COLOR]Janne? by any chance, his look Ok but he told me he & a mate welded them in & the heat distorted the Bonnet,.

With modern adhesives and non-shrink fillers I'm sure you can avoid welding on what is a non-structural component.

Zitat von Noggie;95189

I will have louvers in my hood some day, just don't know when and how yet.

This is exactly how I feel.

Zitat von Noggie;95189

There is a guy in the US (on bimerforums) who sel pre made metal louvers, also Thomas Engl has these.
There is also a guy on Bimmerforums in the US that have made a fiberglass Alpina replica.
It's a fiberglass skin bonded to a fiberglass frame.

I will have louvers in my hood some day, just don't know when and how yet.

There is also a guy in Sweden who simply cut louvers into his stock hood with a grinder.

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ENGL vents were 600 euro a pair.I will not pay that!

naca duct

does anyone know the size/ dimensions of the alpina nana duct?
i'm looking at replicating an alpina bonnet. i have the dimensions of the vents but would love to know about the duct

I always call it the NASA duct, conjures up nice images of an 8er in orbit.

Zitat von stevep840;95192

[/COLOR]Janne? by any chance, his look Ok but he told me he & a mate welded them in & the heat distorted the Bonnet,.

Yes the very one.
I had a look at his bonnet and to me it looked like (and I belive he also said) it was simply cut with a very small angle grinder (maybe a dremmel type tool), when I saw his bonnet back in 2010.
I't looked ok, but the vents are much wider that the Alpina ones.

Zitat von koenig dave;95206

ENGL vents were 600 euro a pair.I will not pay that!

Think this fella Starship(some numbers) sells them for 300usd.

Yes Randy (grhs)gave me first refusal on a pair he baught from him.300usd is still far to much. £100 the pair is all they are worth.imo

Zitat von Noggie;95226

Yes the very one.
I had a look at his bonnet and to me it looked like (and I belive he also said) it was simply cut with a very small angle grinder (maybe a dremmel type tool), when I saw his bonnet back in 2010.
I't looked ok, but the vents are much wider that the Alpina ones.



Think this fella Starship(some numbers) sells them for 300usd.

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Zitat von koenig dave;95230

£100 the pair is all they are worth.imo

It certainly depends on the point of view and what "labour" is worth to one.
Thomas (Engl) cuts & welds them from plain stainless steel sheets - 10 hrs a piece until it is ready to be sold. So, what is your hourly rate to match that price?

Cutting the hood and welding them in certainly is job for those knowing what they´re doing. There is no 2nd attempt

If I´d be in the market for one of those I´d probably go for the "ready-to-use" one that Thomas was offering for around 2k EUR painted as per request.
As of late he was using factory fresh hoods for that job - not sure how this will work out in the future when supplies at Alpina have dwindled away. A new hood ex-factory wil set you back 860 EUR unpainted these days.

Of course there is that CF-project in the US. It looks nice judging from the pictures. The price quoted was nothing less than astonishing but so far none has materialized and there is possibly more to it...
A German tuner called G-Power once offered CF hoods for more or less acceptable money (methinks 4.5K EUR or DEM can´t quite remember) - those were nice to look at only the fit was from a 1950´s Fiat. You´d have to sit on one edge to keep it shut

Apart from Thomas Engl, Alpina is the only current real world supplier of such a hood - theirs cannot really be had though and the tag last was 12k or so, which in any European currency is a LOT.

He also has NACA, NANA and NASA ducts for sale...

Cheers
Reinhard

PS: not affiliated but I know what kind of workmanship he stands for and am not afraid of advertising any of his pieces of art.

I have no doubt Tomas Engl's work is first class. Jason has them fitted to his M73 and I am sure he would have posted negative or positive comments on here.(he made negative remarks about my baby. BIG BIRD)
I am a time served welder in the heavy plant industry.
fitting the vents is not beond my abilities. I also have as friend who is a panel basher/ painter.

The wings your KS8 already has isn't enough? :p

No disrespect, just joking. I love the KS8, would trade my 8e for a LHD one any day.

Zitat von Adrian;95256

The wings your KS8 already has isn't enough? :p

No disrespect, just joking. I love the KS8, would trade my 8e for a LHD one any day.

LHD's for last years
Austria 35.000euro

Germany 47.000 euro

RHD BANKOCK £87.000

Zitat von koenig dave;95247

I have no doubt Tomas Engl's work is first class. Jason has them fitted to his M73 and I am sure he would have posted negative or positive comments on here.(he made negative remarks about my baby. BIG BIRD)
I am a time served welder in the heavy plant industry.
fitting the vents is not beond my abilities. I also have as friend who is a panel basher/ painter.

You're still holding that against me? (just joking )
I can certainly vouch for Thomas' work, both on the bonnet and his exhaust system that I also have (Engl 110), the workmanship is fine quality, good even welds throughout. There is only one very slight flaw on the bonnet and you have to look hard to see it. The price isn't cheap but quality and proper workmanship never are.

Zitat von stevep840;95232

It was 2007/2008 when he & I were talking, He could have a Mark 2 version going now

have no idea, haven't spoken to him in a while.

Zitat von reinhard;95235

Of course there is that CF-project in the US. It looks nice judging from the pictures. The price quoted was nothing less than astonishing but so far none has materialized and there is possibly more to it...

Apart from Thomas Engl, Alpina is the only current real world supplier of such a hood - theirs cannot really be had though and the tag last was 12k or so, which in any European currency is a LOT.

The US one is fiberglass, not carbon fiber, and price was 1300USD I believe, plus shipping and paint.

Alpina... I tried.... unless you actually have a B12 5.7 they wont sell you one.

Zitat von Argonaut;95271

I can certainly vouch for Thomas' work, both on the bonnet and his exhaust system that I also have (Engl 110), the workmanship is fine quality, good even welds throughout.

I just ordered a front section, and X-pipe from him, so soon I will be able to comment on the quality too.
Might end up with a strut bar, and possibly some rear silencers, but I will try with my stock ones first.
I have thought about a Alpina hood too.

Stop talking about the ALPINA hood because you are making me want one so badly

Zitat von Fatandre;95279

Stop talking about the ALPINA hood because you are making me want one so badly

Are you sure?

Always meant to ask, but was scared of appearing (even more) ignorant - but hey - here goes .........
On the Alpina bonnet I absolutely get and like the louvres on each side, but what's the deal with the curvy triangular scoop thing in the middle

Zitat von ukzero;95377

Always meant to ask, but was scared of appearing (even more) ignorant - but hey - here goes .........
On the Alpina bonnet I absolutely get and like the louvres on each side, but what's the deal with the curvy triangular scoop thing in the middle

It's to allow cooler air to enter to cool the fuel rail - cold = more dense = more air = bigger bang, that's the theory anyway. The NACA duct meets up with a hole in the acoustic hood to allow air to flow over the fuel rails. The NACA duct on my Engl hood is functional as I aslo bought an Engl acoustic hood which has a hole cut into it, similar to the alpina version.

Thanks
To get a bigger bang would mean more fuel and air molecules per cm3 of "inductant" (no good just increasing one reactant) and increasing the fuel injection volume is easy enough to do anyway.
Recon there is a useful function though - extra dense fuel would allow for more air to be squeezed in (a little anyway).
Given what you've described I recon it might be to cool the fuel rails to prevent boiling in the extra heat from the extra power?
Squirting vapour as opposed to liquid would reduce the molecule count and available reactant and power a lot