Acura/HPD's future plans - Page 59

chernaudi · 16 Dec 2009, 01:33 (Ref:2600503)

Well, Mike on his site says that the 4.0 and 3.4 can trace their lineage back to the 2006 Indy Car 3.0 V8 that was put away when Toyota pulled out of the IRL and as a result was never used in an Indy Car.

Either way, the point is valid-cars that use the 3.4 or the 4.0 can't switch back and forth between the engines, especially the ARX-02 that was designed with the 4.0 speicifically in mind. The only way is if the engines could be mounted semi-stressed, which I believe could be the case with the 3.4 since it used the Courage LC70/75/FLM 09 tub that usually uses semi-stressed/customer engines, while the 4.0 was designed to be stress mounted in the ARX-02, and I don't believe the ARX-02, being an Acura/HPD/Wirth properitary chassis can easily accept another engine, especially if it's stress mounted.

I'd like to know specifically what the differences is between the 4.0 and 3.4, and how they differ from the never used Indy V8.

And what of the "new" engine-is it a sleeved or de-stroked 4.0-or could it be the '06 IRL engine?

MulsanneMike · 16 Dec 2009, 15:00 (Ref:2600797)

Quote:

Originally Posted by Tim Northcutt

Not true...Robert Clarke himself told some journalists who are friends of mine that the 3.4 L Acura LMP2 engine was built and designed from a clean sheet of paper and in no way is related to the IRL V-8 engine.

FWIW

"...and in no way is related to the IRL V-8 engine." That makes the above statement correct. This is what I wrote back in January of 2007:

There has been a lot of speculation about the origins of the Acura LMP2 engine. It is our understanding that the rumor about it deriving from the IRL power plant is technically incorrect. In 2004 HPD's engine design department began work on what would have become the 2006 IRL engine and resulted in Honda weaning itself away from Ilmor, bringing the IRL program in-house. In 2005, with the IRL’s change in direction to a single engine spec series (and with no competitive motivation), design work for the ’06 motor was redirected to the LMP2 application. And while the IRL and LMP2 engines may appear similar, indeed the bottom ends look very similar, it is understood that absolutely no part will fit one to the other.

This all came down to the still born IRL engine using metric hardware and therefore not a single part would fit onto the existing IRL engine given its use of SAE fixings.

HORNDAWG · 10 Feb 2010, 19:29 (Ref:2630838)

Waiting to get a good look at the ARX-01c.

L.P.

Victor_RO · 10 Feb 2010, 21:50 (Ref:2630970)

RML is listed in the LM entry list as using an Acura/HPD engine, but a 2-liter turbocharged lump is written down there. Is that just a mistake on the part of the ACO and are they running the 3.4 V8 as well, or... is there something we aren't being told?

HORNDAWG · 10 Feb 2010, 21:56 (Ref:2630975)

That must be a typo!! Not sure if the car will be powered by the 3.4L or 4.0L V-8. The 4.0 is probably more likely for this year, but, the 3.4 would allow more development of the package for 2011 as that is the max size for an N/A V-8 by rule in 2011.

L.P.

gwyllion · 10 Feb 2010, 21:57 (Ref:2630977)

A mistake indeed.

Quote:

THE HONDA PERFORMANCE DEVELOPMENT ENGINES: for the first time on the entry list: “HPD”, for Honda Performance
Development. Two British teams, RML and Strakka Racing will indeed by equipped by the Japanese manufacturer.
RML will have a Lola chassis and the car will be entrusted to inseparable experts Tommy Erdos and Mike Nexton.

source: http://www.lemans-series.com/ml/imag..._saison_gb.pdf

Fogelhund · 10 Feb 2010, 22:04 (Ref:2630983)

Quote:

Originally Posted by HORNDAWG

That must be a typo!! Not sure if the car will be powered by the 3.4L or 4.0L V-8. The 4.0 is probably more likely for this year, but, the 3.4 would allow more development of the package for 2011 as that is the max size for an N/A V-8 by rule in 2011.

L.P.

They are in LMP2. The maximum race engine size they can use is 3.4l. The 4.0L is not a "homologated" engine, and therefore not eligible for the class.

HORNDAWG · 10 Feb 2010, 22:10 (Ref:2630991)

Quote:

Originally Posted by Fogelhund

They are in LMP2. The maximum race engine size they can use is 3.4l. The 4.0L is not a "homologated" engine, and therefore not eligible for the class.

My bad, you are correct. It will be the 3.4L lump for RML then and Highcroft as well.

L.P.

prototype · 11 Feb 2010, 01:12 (Ref:2631085)

But, I think they can put the 4.0L in next year and run in LMP1.

(not saying they or anyone else will)

Fogelhund · 11 Feb 2010, 01:28 (Ref:2631091)

Quote:

Originally Posted by prototype

But, I think they can put the 4.0L in next year and run in LMP1.

(not saying they or anyone else will)

Unless things change, LMP1 race petrol engines will be 3.4L maximum next year.

Dead-Eye · 11 Feb 2010, 02:13 (Ref:2631122)

Which means they could actually keep the 3.4 and run in P1...

Fogelhund · 11 Feb 2010, 07:06 (Ref:2631200)

Quote:

Originally Posted by Dead-Eye

Which means they could actually keep the 3.4 and run in P1...

Bingo

WMUCarGuy · 11 Feb 2010, 08:26 (Ref:2631231)

Can anyone identify who's helmet this is in the Highcroft ARX? They've been putting out several "Freeze Frame" videos and this helmet is definitely not Brabs or Marino, and I'm pretty sure Simon is shown at one point with his de Ferran helmet on.

Maybe it's just Simon with a new helmet, but I'm not sure

It looks like a red Arai lid with just a bit of white and blue. French colors?

Could this be a sign of a 2nd car to come for Highcroft?

Dead-Eye · 11 Feb 2010, 10:48 (Ref:2631296)

It's Pagenaud: http://simon-pagenaud.com/website/im...6_pagenaud.jpg

JAG · 11 Feb 2010, 19:35 (Ref:2631595)

Do HPD have a UK/European base, or will everything be shipped to and from the US?

HORNDAWG · 11 Feb 2010, 19:44 (Ref:2631609)

I would imagine for the chassis, Wirth will be involved. The engine and engineer, I would imagine come from Santa Clarita.

L.P.

Mike E · 11 Feb 2010, 19:48 (Ref:2631615)

The P1 engine size limit is going to be 3.4l??? That's rubbish. By which I mean, 'that sucks', not 'that's not true'.

Fogelhund · 11 Feb 2010, 19:56 (Ref:2631630)

Quote:

Originally Posted by Mike E

The P1 engine size limit is going to be 3.4l??? That's rubbish. By which I mean, 'that sucks', not 'that's not true'.

"Proposed"

ubrben · 11 Feb 2010, 19:57 (Ref:2631633)

Quote:

Originally Posted by Fogelhund

"Proposed"

Draft regs are with manufacturers - it's happening.

Ben

Mike E · 11 Feb 2010, 19:58 (Ref:2631635)

Well, I'm glad I'm going to Le Mans this year because half the reason I'm going is to listen to all those Judd V10s.
Wandered off the thread a bit...

TWK · 11 Feb 2010, 22:33 (Ref:2631770)

It's just dawning on y'all now that the song of V10's and 12's will be gone after this season?

**skycafe** · 12 Feb 2010, 01:16 (Ref:2631872)

Quote:

Originally Posted by TWK

It's just dawning on y'all now that the song of V10's and 12's will be gone after this season?

Which to my mind, what's left anyway, seems like a really bad thing.

Audi Racer · 12 Feb 2010, 02:29 (Ref:2631900)

Quote:

Originally Posted by Mike E

Well, I'm glad I'm going to Le Mans this year because half the reason I'm going is to listen to all those Judd V10s.
Wandered off the thread a bit...

If you think thats the sound to hear wait till you hear the Aston Martin Lola V12. That engine in whatever config its in is the best sounding thing on the planet no argument. nothing comes close. F1 cars are painfull. nascar no.diesel no.
I think everone can agree on this.
http://www.youtube.com/watch#v=2Zwar...eature=related

http://www.youtube.com/watch#v=fhDBD...eature=related

http://www.youtube.com/watch#v=9ve6e...eature=related

Audi Racer · 12 Feb 2010, 02:38 (Ref:2631907)

i just realized that Aston Martin is creating a 3.4l V8 for P1 racing how exciting

HORNDAWG · 12 Feb 2010, 02:49 (Ref:2631912)

And the ARX-01 has only ever had a V-8.

L.P.

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