5 cylinders vitmotor

[uptrading]

When I read what I wrote, it sounded like I think the sleeves you are using is week! That is not what I meant We are using a 84mm bore, and plane to much more horse power next year.
I looked at the Darton sleeves and there were not that much cylinder wall thicknes left to cope with extrreme cylinder pressure with 84mm bore. We have a cylinder thicknes of 7mm, exept between the cylinders.
With smaler bore, they would proberbly take annything you can throw at them.

Regards Ulf

[Sute]

Thanks Ulf,

Anyway, I'll try to break the 1000hp barrier with these. I've heard guys putting down 1000hp from stock 81mm block 4 cyl engine and I think these Dartons should take the beating as well. As you can see from the picture we added more material on the front and back side in order support the sleeve flanges. Let see how the things goes..

Regards, Sute

[Sute]

When I read what I wrote, it sounded like I think the sleeves you are using is week! That is not what I meant We are using a 84mm bore, and plane to much more horse power next year.
I looked at the Darton sleeves and there were not that much cylinder wall thicknes left to cope with extrreme cylinder pressure with 84mm bore. We have a cylinder thicknes of 7mm, exept between the cylinders.
With smaler bore, they would proberbly take annything you can throw at them.

Regards Ulf

jup, exactly..

I have also 84mm with those, but just can't recall the thickness at the top of the cylinder, should be something near 5mm.

[Erland Cox]

Did you line bore the mains after fitting he sleeves or was it still straight?

Erland

[Sute]

They were line bored after the installation. The heating during the installation did twist the block a bit, but not significantly.

[Jens Gustavsson]

vad är det för C-C mellan cylindrarna på vit motorn?

hur tjocka är orginal fodren i järn + aluminium?

[MGP]

Hur mycket "press fit" har ni, 0.05mm? vad typ for loctite använder ni? 648? och hur mycet varmas blocket?

Grym sak

[uptrading]

cc mellan cylindrarna är 91mm.

Tosk.
Presspassningen/Krymppassningen står lite längre upp, använder 518 Loctite.

Sute. Did You line bore it with both the girdle and head torqed to spec? This motor was first line bored with only the girdle torqued, then when I tourqued the head, the mains was out of round.
Do you also have the darton sleeves sticking up about 0,06-0,08mm? Otherwise the block will lift the head, when the engine gets warm.

I am sure Your sleeves will take the beating
by the way, where are You from? What kind of car will you put the engine in?

Ulf

[uptrading]

Jens.
Ska kolla hur tjocka cylindrarna är orginal, vet att gjutjärns foderna är nästan borta vid 84 borr, nästan bara alluminium kvar.
En som jag känner jobbade på Volvo, med utveckling av vitmotorn melölan 02 och 05, han sade att orginal cylindrarna börjar komma i svängning och blir otäta redan vid ganska moderata effektökningar. Det har ju inte bara med effekten att göra, men han nämnde att dom hadde oaxeptabelt läckage mellan kolv och cylinder, redan vid ca 400 hk.

Ulf

[MGP]

Ulf, jag hittar inte krymp pasningen, e jag blind?

[uptrading]

Det är du givetvis inte! Skrev det tidigare idag, men glömde nog posta
Krymppassningen längst upp i deckplanet är 0,03mm, mellan block och ytan där o-ringarna sitter är det 0,02mm och längst ner 0,015mm.

mvh Ulf

[Sute]

cc mellan cylindrarna är 91mm.

Tosk.
Presspassningen/Krymppassningen står lite längre upp, använder 518 Loctite.

Sute. Did You line bore it with both the girdle and head torqed to spec? This motor was first line bored with only the girdle torqued, then when I tourqued the head, the mains was out of round.
Do you also have the darton sleeves sticking up about 0,06-0,08mm? Otherwise the block will lift the head, when the engine gets warm.

I am sure Your sleeves will take the beating
by the way, where are You from? What kind of car will you put the engine in?

Ulf

I have to ask my machinist how they did the line boring, don't really know about that. So the sleeves should be from 6 to 8 hundreds higher than the remaining block? I did not know about that. The shop who did the assembly, they have done several Hondas and the problem with those have been a sinking effect, not vice versa.

I am from Finland and the engine will be fitted to a 2001 Volvo V40 We have focused with these cars to ride speed contest on standing mile where the grip is not the most essential part.

[uptrading]

I also have a Honda F20C engine with Darton Sleeves, I didn't do the sleeving on that block, but the guy who did, followed the instructions and the sleeves are flusch with the deck surface, and no leeks.
However the Volvo was up in the dyno 2 times befor we got the leeking problems solved, the only big diference between then and now, is the raised sleeves! Got the tips from reading about the sleeving of the GM Eco Tec engine.

Interesating with standing to 1000m! How fast do you travel after 1000m?

mvh Ulf

[Sute]

So do you suggest to grind the deck once again, so that the sleeves are 0,06 - 0,08mm higher than the remainin block? If so, that will be done. Do you have a method to tell how to do that?

That is interesting to see the speed at the mile's point. A friend of mine did with a similar car with 700 hp a 315kph. So with 1000hp that should be +330 kph. A 1100 hp Supra did 347 kph to a hard head wind here in Finland last summer.

[Sute]

so you mean this article:

http://www.enginebuildermag.com/Article ... gines.aspx" onclick="window.open(this.href);return false;