who brought the red GTR sold by the factory?

[crafty]

??? do you mean

"557chp on Gail's dyno. At SRR it was 497 bhp at the wheels?"

Comparing fly and wheel numbers is another can of worms.... the differences between different brands of wheel dynos is another (much bigger) can of worms, inside a hornets nest.

[deadscoob]

Digressing to the more interesting subject of power outputs, I'd prefer to see the power the engine makes when it's actually installed. I don't care what they make on the dyno, it's what they make when installed with everything attached - surely that's the only important one?

If you have a 700hp engine which "only" makes 650 when installed, then isn't that the figure that should be quoted? Mainstream manufacturers don't quote outputs based on dyno figures. I know a dyno should be the correct figure (assuming corrections figres are correct) but it's not how cars are bench marked.

[LuckyP]

crafty said:

??? do you mean

"557chp on Gail's dyno. At SRR it was 497 bhp at the wheels?"

Comparing fly and wheel numbers is another can of worms.... the differences between different brands of wheel dynos is another (much bigger) can of worms, inside a hornets nest.

No sir, I mean what I said.

Has anyone had a known chp engine other than AS tested in their car over here?

I appreciate the can of worms that are different dynos etc. But I for one would rather know what the engine puts out in the car, than what the engine builders says it does.

I wonder if SRR have measured another Ultima, perhaps then we could see what difference there are between other manufactures engines?

Anyway Crafty, how's your car going - how many miles on her now?

Edited by LuckyP on Friday 29th February 13:56

[crafty]

... bugger all. Still trying to sort out a trade plate over here which will save me first registration tax of about GBP20K, there was a recent case of a guy in a ferrai who lost it at 250Kmh in the wet and the govt has clamped down on trade plates..... so I may have to bite the bullet and pay the tax.

In preparation for that I have made an application for a personal plate, they do it over here by auction. You register the name, pay GBP400 deposit, it goes to auction, if nobody bids you get it for the deposit, money goes to charity....Im not expecting any bidding from anyone else, so if all goes well she will be wearing "ULTIMA"

The car is also not running at the moment as I pulled the dash out to re-do it with indicator stalks rather than switches, and an ipod mounted in the dash - no head unit. (sure to decrease the value even more)

[LuckyP]

crafty said:

... bugger all. Still trying to sort out a trade plate over here which will save me first registration tax of about GBP20K, there was a recent case of a guy in a ferrai who lost it at 250Kmh in the wet and the govt has clamped down on trade plates..... so I may have to bite the bullet and pay the tax.

In preparation for that I have made an application for a personal plate, they do it over here by auction. You register the name, pay GBP400 deposit, it goes to auction, if nobody bids you get it for the deposit, money goes to charity....Im not expecting any bidding from anyone else, so if all goes well she will be wearing "ULTIMA"

The car is also not running at the moment as I pulled the dash out to re-do it with indicator stalks rather than switches, and an ipod mounted in the dash - no head unit. (sure to decrease the value even more)

I'll sure be worth it all in the end.
I think the Factory std audio is 8 track so you will for sure lose come resale on anything too fancy.

Edited by LuckyP on Friday 29th February 15:02

[eliot]

Question: If you are in the UK when you buy an AS engine, do you buy it from Ultima or from AS?

The point being;
If you purchase it from Ultima and it dies within the first year - its up to them to fix it. Which IS worthwhile.

If on the otherhand you have to purchase direct from AS yourself (i.e. the contract and therefore the warranty is between you and AS) - then I dont see the benefit. You have to pay for shipping both ways, and even then they could decide its not a warranty repair for whatever reason.

?

[LuckyP]

eliot said:

Question: If you are in the UK when you buy an AS engine, do you buy it from Ultima or from AS?

The point being;
If you purchase it from Ultima and it dies within the first year - its up to them to fix it. Which IS worthwhile.

If on the otherhand you have to purchase direct from AS yourself (i.e. the contract and therefore the warranty is between you and AS) - then I dont see the benefit. You have to pay for shipping both ways, and even then they could decide its not a warranty repair for whatever reason.

?

You buy from A/S direct, the warranty is with them. After mine decided that 3000 odd miles wasn't the best service interval for it's first oil change, I had to ship it back to US at my cost. It was fixed by A/S, at my cost (didn't follow the run in schedule).

The second time, an oil leak from the sump, the work was carried out by Charles Dunn, A/S approved UK repairer, under warranty.

The third time, detonation caused by running out of fuel on track (so I'm told), the work is being carried out by Charles - at my cost, and I've done what I should have done in the beginning, and gone dry sump and a few other A/S recommended changes to make the the engine survive what I throw at it.

That's how it works with me.

Pete

Edited by LuckyP on Friday 29th February 16:30

[Paul.B]

eliot said:

Question: If you are in the UK when you buy an AS engine, do you buy it from Ultima or from AS?

The point being;
If you purchase it from Ultima and it dies within the first year - its up to them to fix it. Which IS worthwhile.

If on the otherhand you have to purchase direct from AS yourself (i.e. the contract and therefore the warranty is between you and AS) - then I dont see the benefit. You have to pay for shipping both ways, and even then they could decide its not a warranty repair for whatever reason.

?

You buy the engine from AS. The warranty agreement is with them. HTH

Paul.B

[TuxMan]

Pete how can running out of fuel cause detonation ???

[GTRCLIVE]

Lean mixture causing over heating burn under full power is the worst thing for an engine..... will eat heads and valves..

[TuxMan]

ok but they are not saying "lean running "they are saying he ran out of petrol ,i take it pete you only ran out of petrol once ???

[Boosted LS1]

^ low fuel volume, say in the float bowls but still the same amount of air being dragged through the air circuits would equal a lean mixture. A restriction in the fuel lines or fuel slosh away from the jets could also lean the mixture temporarily.

[LuckyP]

Well Simon, yes, only once on track, but it has happened a few other times on the road.

Boosted, could a single fuel starvation be the result of this?:



This is the moment it happened, ironic I was laughing!! That's Lucky for ya:

http://www.pistonheads.tv/clip1378

Doh!

[Boosted LS1]

^ That was extreme detonation and prolonged but what the cause was I don't know. The soot doesn't indicate starvation to me but I can't really comment as I wasn't in your car at the time. I would still check the dizzy, drive gear etc as a precaution. It could have happened several times. Look at the carbon which has filled in some of the craters. Or, it happened in one go and you were running rich at the time or when you were slowing down, going back to the pits.

Mike Cokers lsx Ultima track day car had a lot of fuel starvation issues (now resolved) and it just gave him a misfire but never any detonation or top end damage. His tin top lsx pistons were quite nice when his engine was opened up and they weren't sooted like yours. That said, he does have knock sensors.

[LuckyP]

I was with Wayne(yeah let's blame him) coming back from Bedford. The car 'missed' on applying the gas and onece or twice stuttered and back fired.

This happened on the track too now, if I recall.

Bu99er.

[F.C.]

Err, so who did buy the factory car then?
F.C.

[GTRCLIVE]

Speaking to the men that know if you get a Lean misfire then there's not enough fuel left to get a hot burn so lean misfiring wont give you the same results (Not as Bad)... But it does point to similar problems with the Fuel system...
Its when there's no misfire and your running to lean but dont know it, when Damage occurs....

[LuckyP]

GTRCLIVE said:

....Its when there's no misfire and your running to lean but dont know it, when Damage occurs....

This is why Charles has suggested that I install an A/F meter I 'spose, and wants to be there when I go out for the test run. Carbs, you gotta love'em

[crafty]

... get an Innovate one with datalogging.

http://www.innovatemotorsports.com/products/kits.p...

[LuckyP]

Wow, quite like those X-16 guages. Might be ablr to make it fit in with the dash?? Prefer to have that than one of those rectangular affairs.

Ta Crafty.