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Revised N Whiteblock


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The 98 NA cams are one of two cams listed in the OP with the duration. :blink: I guess this means I need to organize it better :lol:

Yeah i guess i missed that ohmy.giftongue.gifLooks like the 99 NA cams have a higher lift than the 98 NA cams. Im guessing that would be a better buy if it works?

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Yeah i guess i missed that ohmy.giftongue.gifLooks like the 99 NA cams have a higher lift than the 98 NA cams. Im guessing that would be a better buy if it works?

Yup, plus the later heads flow better. However, if you're talking swapping the cams, the ones from a VVT head are not interchangeable with the non-VVT head without some machining work, even if it's the fixed cam :(

To borrow some pics that Johann took of the different cams:

3cam-vvt-ftop.jpg

3cam-vvt-rtop.jpg

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Why nobody has made proper after market cams ( for a decent price) for our cars blows! Do you or do you know anyone have has 93 cams for sale? I posted on the want section but nothingsad.gif My Cyl head is going in next week to get P&P'd and a 3 angle. if i could get a set of 93 cams i would be happy for now.

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There are apparently a few places in Sweden that sell cams for the whiteblocks (I thought LGSpeed did, but I couldn't find any on their website). Their Volvo tuner base is much larger, and have a lot of stuff available to them. We're severely hampered here by a very small market base. It doesn't make sense to bring a lot of these things to market just because of the tiny volumes the product will be moving, and the price that such a small volume will demand :(

For some fun, take a through some of the threads here

http://translate.google.com/translate?u=http%3A%2F%2Fforum.turboperformanceclub.com%2Fviewtopic.php%3Ff%3D31%26t%3D34377%26start%3D0&sl=sv&tl=en&hl=&ie=UTF-8

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instead of making a plug to get rid of the exhaust side vvt. just get a NA exhaust cam from a VVT engine. since the NA engines use the VVT on the intake basically you would remove the VVT from the turbo engine....you will also need to make a block off plate to cover the solenoid

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By making the block-off plate, aren't you effectively fixing the VVT in place with the VVT cam anyhow? What would the advantage be to swap the VVT turbo cam for the non-VVT N/A cam, especially when you consider that the turbo cam has more lift? B)

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By making the block-off plate, aren't you effectively fixing the VVT in place with the VVT cam anyhow? What would the advantage be to swap the VVT turbo cam for the non-VVT N/A cam, especially when you consider that the turbo cam has more lift? B)

:o had them switched around :P

good catch.

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I used to think these motors needed cams but my latest dyno sessions seem to suggest otherwise... I made peak power last year at around 6100rpm and figured the cams were choking it. I made a sheetmetal intake manifold and now power is still going up at 7500rpm.... I don't know how far it would keep going as I ran out of injector at that point.

This is a T6 using 960 cams with are slightly hotter than 850 NA cams but still, based on the fact I probably make peak power at 8000rpm or so, I doubt many people need more than NA cams honestly...

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I used to think these motors needed cams but my latest dyno sessions seem to suggest otherwise... I made peak power last year at around 6100rpm and figured the cams were choking it. I made a sheetmetal intake manifold and now power is still going up at 7500rpm.... I don't know how far it would keep going as I ran out of injector at that point.

This is a T6 using 960 cams with are slightly hotter than 850 NA cams but still, based on the fact I probably make peak power at 8000rpm or so, I doubt many people need more than NA cams honestly...

nice dude! i love your motor, such a sick setup B)

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I made peak power last year at around 6100rpm and figured the cams were choking it. I made a sheetmetal intake manifold and now power is still going up at 7500rpm....

Which style manifold were you using before? One of the ones out of the S90 that is shaped like the pre-eletronic throttle manifolds on the 5 cyl whiteblocks, or the newer style?

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  • 2 weeks later...

For reference when purchasing parts to build up the internals, the stock 143mm rods that came in the B5254T3 ('05+ 2.5L turbo) engine weigh 644 grams, and the corresponding pistons weigh 290 grams (or 412 grams with piston rings, snap rings and wrist pin)

http://theeshadow.com/files/S40MY2005/S40MY2005-Engines.pdf

Found some rough dimensions on the 5 cyl, haven't found the weight yet.

The 5-cylinder whiteblock is approximately 25" tall from sump to cam cover.

It is approximately 25" long at the crankshaft and 23" at the head, but roughly 27" allowing for the distributor.

Now it gets trickier..... it is around 14" wide at the flywheel end (not allowing for starter or exhaust) but 20"+ at the front allowing for water pump and alternator etc, but there is scope for reducing this dimension a little.

No stock mounts were fitted to the engine I measured, but the block itself is roughly 10" wide between the mount fixings, and these are positioned between 3.5" and 11" from the front face of the block. If you're mounting it for RWD you should have plenty of options for making your own mounts to suit to pick up on these fixings.

Out of curiosity I measured it up against a 6-cylinder whiteblock and this proved to be only 3.5" longer than the 5-cylinder, and obviously no distributor to have to allow for either.

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Aha, found the weight over on TB, an earlier 2.3L HPT engine weighs 332 lbs. The RNs will be a bit less with their lighter pistons, crank and different intake manifold, although VVT will tack a bit back on there.

and the weights are in !!!!!

in the Redblock corner, B230 with full intake, n/a exhaust manifold, FI harness, engine mounts, some acc. brackets, NO starter, NO alt = 301 pounds...automatic flexplate installed

in the Whiteblock corner, 5 cylinder T5 engine, full intake, turbo exhaust manifold, FI harness, some acc. brackets, NO starter, NO alt = 332 pounds....automatic flexplate installed

no idea on fluids, hope empty

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