Speedy88's Volvo 740 Turbo

[foggyjames]

No-one knew whether it was fuel or ign

I was pretty damn sure it wasn't fuel! I'll admit I suspected it was the hall sensor, but I don't remember you piping up to say "oh no, it's definitely the coil. I know because I just have to waggle my massive mechanic cock around and the answer just falls out of the end..."

Are you planning to do anything about the paint? After the boost, of course...

cheers

James

[Speedy88]

Yeah, I was thinking about painting it the same or a slightly different blue, in matt. With the suspension low and some white wellas I'm picking up next weekend, I think it'll look pretty mean

[Ride_on]

Thats pretty much the same as a 940, always thought he differnce was headlights and tail gate, but looks identical to my 940.

I have a spare 940 estate if you need parts (except the engine).

You should have a nice solid clutch not the dual mass mess my 940 has.

I would treat extra boost with respect. I have some odd opinions on Turbo's that I cannot ratify with physics. People keep talking baout putting bigger turbos on, but this should not make any difference without other upgrades and only then if you can see the pressure dropping at full boost. Tuners then say 'ah it gives more flow', to which I will say 'well the pressure will then drop if it can't keep up, the flow depends on the pressure in the manifold'. The closest I can get is that the exhaust side is a bit restrictive on the manifold and turbo, and may respond to some gas flowing, there are some web resources for this. I do notice power flatting out when mine is on 11psi. When you rake it (at normal boost) the manifold seems to get the hottest.

Anyway what ever you do, use it sparingly. Eg sitting at 140 on the motorway caused parts to get too hot and crack-up on mine. I think the water cooled bearing makes the turbo a bit weak.

[Chris_C]

I would treat extra boost with respect. I have some odd opinions on Turbo's that I cannot ratify with physics. People keep talking baout putting bigger turbos on, but this should not make any difference without other upgrades and only then if you can see the pressure dropping at full boost. Tuners then say 'ah it gives more flow', to which I will say 'well the pressure will then drop if it can't keep up, the flow depends on the pressure in the manifold'. The closest I can get is that the exhaust side is a bit restrictive on the manifold and turbo, and may respond to some gas flowing, there are some web resources for this. I do notice power flatting out when mine is on 11psi. When you rake it (at normal boost) the manifold seems to get the hottest.

I've very little clue when it comes to turbo's, but my take was "more boost == more turbo spinning therefore more heat from the friction" getting you to law of diminishing returns. Bigger turbo means slower spinning and that law is pushed about xxbhp down the line?

This car is making me upsettingly want a big brick.

[Speedy88]

I've very little clue when it comes to turbo's, but my take was "more boost == more turbo spinning therefore more heat from the friction" getting you to law of diminishing returns. Bigger turbo means slower spinning and that law is pushed about xxbhp down the line?

This car is making me upsettingly want a big brick.

I know This is the problem I had a few months ago, which led to this purchase.

As far as I know, smaller turbos can be better in some applications, giving more power down low as the lag is less, at least that's how I understand it. Big turbos give big power at the top end but then the lag is also much much bigger.

I'm still learning.

[Chris_C]

Having just been looking at big bricks, why the hell do people buy 300's anymore? (ok, because they actually go round corners... but bear with me)

940 Tubby Estate on the bay. £500. 12months ticket. Clean as hell.

I'm damn tempted to chop the corset in for that. It's newer too!

[Speedy88]

I'm getting a pretty reliable 30mpg-ish around town too, keeping off boost. More miles per mellons than the valver, that's for certain.

[Butterz]

If you're about wednesday night gimme a bell. Found a nice hooning spot the other night

[Speedy88]

I'm working but if it's near town(ish) I could take a 1.5hr lunch break About midnight?

[Butterz]

Sounds spot on! Avonmouth too far?

[Ride_on]

I've very little clue when it comes to turbo's, but my take was "more boost == more turbo spinning therefore more heat from the friction" getting you to law of diminishing returns. Bigger turbo means slower spinning and that law is pushed about xxbhp down the line?

A turbo is just a fixed pressure creater, if the pressure setting is constant the engine will not see any more atoms of air air no matter what size the turbo or how fast it spins. However you might spend less BHP squeezing the exhaust gas through a small turbo wastegate and have more left for the wheels on a bigger one.

[jon-ovlov]

hooning!? avonmouth?! midnight?! im there!!

[volvosneverdie]

Having just been looking at big bricks, why the hell do people buy 300's anymore?

940 Tubby Estate on the bay. £500. 12months ticket. Clean as hell.

I'm damn tempted to chop the corset in for that. It's newer too!

I have been saying this for some time.

Everyone needs a Turbowagon.

EVERYONE!!

EEEEEEEEVERYONE!!!!!!!!!!!!

[Speedy88]

I hope I've started a trend. Especially as I'm hanging around

[Speedy88]

Sounds spot on! Avonmouth too far?

Hum, it'll take me half an hour to get there so it is, a bit. Raincheck for 2 weekends away? (11th - 13th) Hmmm. 13th. Sunday night?