Pointy oil cooler on a Curvy?

[hardhat_harry]

Is there a way of fitting the pointy oil cooler to a curvy?

[embee]

I don't know a lot of detail about the pointy, but I doubt it, not easily anyway. There are bosses on the cases which would probably allow you to achieve it but would require machining to accept threaded connectors.

On the other hand.................


I fitted a water/oil heat exchanger (might call it a cooler but it is a bit more than that) from a Kawa ZX6 on my curvey.

http://i258.photobucket.com/albums/hh268/Hi-vis/Bikes/IMG_4384Small.jpg

http://i258.photobucket.com/albums/hh268/Hi-vis/Bikes/IMG_4377Small.jpg

There are a few issues to consider.
1 - Suzuki insist on perversely using an odd thread for their filters, M20x1.0 . I couldn't find an off the shelf extended adapter with this thread, places like this (http://www.merlinmotorsport.co.uk/OIL-SYSTEMS-Extension-Bolts/c162_255/index.html)do extension bolts in various other threads, so I had to make my own. I did consider using a different thread so I could use different filters (e.g. OE Yaris filters can be had for £6, use 3/4"UNF thread) but stuck to the Suzuki one. I did end up altering one stub on the cooler from this picture due to the hose being a touch too close to the cases.

http://i258.photobucket.com/albums/hh268/Hi-vis/Bikes/IMG_4266Small.jpg

2 - the bypass coolant hose on the curvey isn't gated (the thermostat doesn't close it off when open) so can be diverted through the cooler, but teh stub at the water pump is restricted with a 4mm drilling which (I found) didn't flow enough through the cooler, so I opened that out to 6mm which is the bore of the stub. You can safely divert coolant flow in practice, I have done tests on big 300kW engines and the flow can safely be reduced below what manufacturers use without exceeding critical metal temperatures.

3 - I have achieved a slight improvement in warm-up, but the outcome has been that for 99% of normal road use it is a complete waste of effort!
At 70mph the oil runs at near enough coolant temp anyway, somewhere in the 80-85C range typically, which is just about right. For higher speed it would be a benefit, or more strictly higher revs.

I haven't done extensive measurements, my meter will only record one channel at a time, but I haven't seen any significant benefit under most circumstances to date.

The alternative would be a sandwich offtake adapter (see the earlier link) and an oil/air cooler, I would suggest a thermostatically controlled version to avoid running with cold oil in cooler weather. You would need an extension bolt.

[zadar]

Is there a way of fitting the pointy oil cooler to a curvy?
Just drill and tap cases. You will need different exhaust header to clear oil cooler on curvy.

[collis]

that is one Very clean engine/downpipe emby, makes mike look like a pile of rust my down pipe is that dirty.
How did you clean it that well?

Harthat_harry, why dont you buy a pointy motor and drop that into the curvy? (if it'll fit) you'll get FI as well then too.

[jambo]

Harthat_harry, why dont you buy a pointy motor and drop that into the curvy? (if it'll fit) you'll get FI as well then too.
To get the FI, you'd need pretty much the entire Pointy wiring loom, clock assembly, throttle bodies, sensors etc.

I'm certain it can be done but it's closer to a pointy with a curvy fame at that point :D

Jambo

[embee]

Just drill and tap cases. You will need different exhaust header to clear oil cooler on curvy.


It isn't quite a simple as that though, you need to divert the flow from the existing passages to the cooler at some point, either before or after the filter. I haven't got the equivalent diagram for the pointy but this is the curvey circuit. Looking at the bosses on the case I suspect you could use the 2 at the filter mount but you would need to close off the supply into the filter chest. I'd still recommend a th'stat, cold oil isn't good. (Edit - looking at this pic it's probably easier than I thought, you just need to machine the bosses for pipe unions and plug the entry drilling into the filter chest at the top)

http://i258.photobucket.com/albums/hh268/Hi-vis/Bikes/IMG_4270Small.jpg

The easiest aftermarket version is the sandwich plate which fits between the case and filter, this diverts the flow through the cooler before the filter and no mods are required to the engine system. Thermostatically controlled versions allow the oil straight through until it gets hot then the th'stat diverts it to the cooler.

http://www.merlinmotorsport.co.uk/images/oilsystemsl/m-otsp-1.jpg

http://i258.photobucket.com/albums/hh268/Hi-vis/Bikes/SV650curveylubeSmall.jpg

http://i258.photobucket.com/albums/hh268/Hi-vis/Bikes/SV650curveylube2.jpg

[Viney]

Edit. Scrap that,

[dyzio]

Is there a way of fitting the pointy oil cooler to a curvy?

Just curious, why do you want to fit an oil cooler to a curvy?

[andrewsmith]

Dyzio racing performance, keeps the engine at optimal temperature

Harry Hel to a oil cooler kit but dont spec the model, try speaking to them as they should know

http://helperformance.com/store/product_info.php?cPath=60_63&products_id=3212

[dyzio]

racing

Aaaa!

Cheers :)

[zadar]

It isn't quite a simple as that though, you need to divert the flow from the existing passages to the cooler at some point, either before or after the filter.
Cooler is just addition to what you have and before filter. All you need is jet to reduce entry to oil filter. Which is what pointy has.

[hongman]

Is an oil cooler going to give any discernable difference after "all" the added weight? How much benefit do you get out of an engine at optimum temp?

I no nothing about this, its meant as a genuine question - not knocking it one bit if it works :)

[maviczap]

Here's the Hel kit on Wemoto's site. Says its for a curvy too, but don't know how it fits

http://www.wemoto.com/bikes/Suzuki/SV_650_SK1_SK2_SX_SY/99-02/picture/HEL_Performace_Oil_Cooler_Kit/

[jimmyb]

Hi, dont know how right this is but a friend of mine gets his oil stright from a guy at rock oil, he was talking to him about there development of there best oils like the xrp and fully syinthetic and how they are trying to get them as close to vegatable oils (sounds strange) and how these oils work better the hotter they get and some of the race teams and club racers have actually taken off there oil coolers and seen improvements in engine wear ? Just to add i dont think the weight you would be adding to your curvy would be worth and performance gain you would get.

[hardhat_harry]

Thanks for all the answers guys, much to ponder over the winter.