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Author Topic: saab 9-5 parts for 2.5 omega turbo project...  (Read 4944 times)

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cem_devecioglu

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Re: saab 9-5 parts for 2.5 omega turbo project...
« Reply #15 on: 23 November 2008, 20:53:44 »

Quote
Quote
pm sent about turbo..

also I think you must consider the gearbox power handling limit..

2.5 autoboxes are not strong as 3.0 boxes..

i'v got an ar35 to bolt on...and the torque convertor lol ;)

I see you ready :y
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ngrainqey

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Re: saab 9-5 parts for 2.5 omega turbo project...
« Reply #16 on: 23 November 2008, 21:11:04 »

Quote
Quote
Quote
pm sent about turbo..

also I think you must consider the gearbox power handling limit..

2.5 autoboxes are not strong as 3.0 boxes..

i'v got an ar35 to bolt on...and the torque convertor lol ;)

I see you ready :y

well... i'm trying to be haha!
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frank1

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Re: saab 9-5 parts for 2.5 omega turbo project...
« Reply #17 on: 23 November 2008, 23:51:03 »

wow, you must really want some work to do, ive dun a few turbo conversions on non turbo stuff like, astra gte 2.0l 8v, astra 1.7d, astra gte 16v,xr3i, and a 2.0l zetec bottom end into rs turbo with standard 1.6 cvh rs turbo head and 2  transit 2.5d, the transit was the only on that was worth doing as oposed to getin the proper turbo engine
(thats only because those engines are upto taking the heat and boost with no mods) the pistons in no turbo petrol engines are cast were as turbo pistons are forged so non turb pstons will end up with holes in due to all the extra heat, if you only run 6psi they may take it but 6 psi with the lower compresion ratio will hardly be worth the bother, but if u do go thru wth it spacer plates can work if there made and fited corectly but they will alter cam timing slightly wich will reduce power, also the crank bearing shells in turbo engines are tougher so u will need to change them but u will have the sump off anyway to fit the oil drain 4 turbo , u will also need a oil feed to the turbo( oil cooler pipes are a good place for that, if u really want a turbo omega a c20let from calibre really wud be your cheapest and best bet, it might be 500 cc smaller but it will be loads lighter and so will inprove handling and all sorts
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craig

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« Last Edit: 23 November 2008, 23:56:40 by silvergsi24v »
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ngrainqey

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frank1

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Re: saab 9-5 parts for 2.5 omega turbo project...
« Reply #20 on: 24 November 2008, 22:27:55 »

if u are gona do the v6 i just had a thoght, if use 3.0 heads they might lower the compresion enuff because they probably have a bigger combustion chamber than the 2.5 heads and that way you wont need to mess with spacer plates and you will also get extra power from the 3.0 cams,  thats assumeing the 3.0 heads will fit a 2.5 and assuming the combustion chambers are bigger wich they will be unless they have used the pistons to make them bigger, you should ask somebody on the forum that knows more about the v6 heads as i've never looked at them,  if they can work you will save lots of time and money and  do away with unreliable spacer plates
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Marks DTM Calib

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Re: saab 9-5 parts for 2.5 omega turbo project...
« Reply #21 on: 25 November 2008, 08:23:28 »

the saab rods will be no good as they are likely to be longer to support the lengthened stroke of the 3.0.

3.0 heads will lower the compression to about 9.5:1 ish.

Fit oil jets into the rods for piston cooling.
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cem_devecioglu

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Re: saab 9-5 parts for 2.5 omega turbo project...
« Reply #22 on: 25 November 2008, 13:23:35 »

Quote
the saab rods will be no good as they are likely to be longer to support the lengthened stroke of the 3.0.

3.0 heads will lower the compression to about 9.5:1 ish.
Fit oil jets into the rods for piston cooling.

it seems a good solution for turbo.. ::)
« Last Edit: 25 November 2008, 13:24:12 by cem_devecioglu »
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ngrainqey

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Re: saab 9-5 parts for 2.5 omega turbo project...
« Reply #23 on: 25 November 2008, 18:13:44 »

Quote
Quote
the saab rods will be no good as they are likely to be longer to support the lengthened stroke of the 3.0.

3.0 heads will lower the compression to about 9.5:1 ish.
Fit oil jets into the rods for piston cooling.

it seems a good solution for turbo.. ::)

wouldnt adding oil jets into the rods weaken them?
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markey mark

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Re: saab 9-5 parts for 2.5 omega turbo project...
« Reply #24 on: 25 November 2008, 18:15:23 »

Quote
Quote
Quote
the saab rods will be no good as they are likely to be longer to support the lengthened stroke of the 3.0.

3.0 heads will lower the compression to about 9.5:1 ish.
Fit oil jets into the rods for piston cooling.

it seems a good solution for turbo.. ::)

wouldnt adding oil jets into the rods weaken them?

no alex they are already in rods just need releasing ! :y
also i have a mint set of 3.0 heads here fully refurbed all new inlet valves but i want £150 for them matey !!  :y
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ngrainqey

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Re: saab 9-5 parts for 2.5 omega turbo project...
« Reply #25 on: 25 November 2008, 18:17:08 »

Quote
Quote
Quote
Quote
the saab rods will be no good as they are likely to be longer to support the lengthened stroke of the 3.0.

3.0 heads will lower the compression to about 9.5:1 ish.
Fit oil jets into the rods for piston cooling.

it seems a good solution for turbo.. ::)

wouldnt adding oil jets into the rods weaken them?

no alex they are already in rods just need releasing ! :y
also i have a mint set of 3.0 heads here fully refurbed all new inlet valves but i want £150 for them matey !!  :y

ok thanks markey... i'll have to get back to you on the heads ;)
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cem_devecioglu

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Re: saab 9-5 parts for 2.5 omega turbo project...
« Reply #26 on: 25 November 2008, 18:19:08 »

I just checked courtenay for forged pistons.. only 86.5 mm pistons  exists ( 2.0 )  ..Will check other sites :-/

But as far as I know 3.2 have steel crank..
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ngrainqey

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Re: saab 9-5 parts for 2.5 omega turbo project...
« Reply #27 on: 25 November 2008, 18:23:30 »

3.2 is wrong stroke/lift hight
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cem_devecioglu

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Re: saab 9-5 parts for 2.5 omega turbo project...
« Reply #28 on: 25 November 2008, 18:26:04 »

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3.2 is wrong stroke/lift hight

bad chance :-/
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ngrainqey

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Re: saab 9-5 parts for 2.5 omega turbo project...
« Reply #29 on: 25 November 2008, 18:30:24 »

might just buy some 3.0 heads like markeys and then run at about 6psi (which would be slightly lower comp ratio than the 2.5's) so should run slightly cooler
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