windrover Posted December 14, 2010 Share Posted December 14, 2010 I was considering increasing my air intercooler size on my 2.8l tgv. a client mentioned to look into water cooling instead of air cooling. so I am wondering if anyone has experience using a water/methanol cooling system on intake air as a way of improving fuel efficiency and increasing boost. snow performance is a link that I have looked at. Quote Link to comment Share on other sites More sharing options...
landroversforever Posted December 14, 2010 Share Posted December 14, 2010 (edited) I think this is called charge cooling(EDIT:would appear air-air and air-water can both be called charge cooling!)? I may be wrong though. There was an orange Bowler Wildcat with this in LRM a few months ago. IIRC it was built by Allisport. HTH. Sorry, EDIT again. (I really should read properly!). Do you mean water cooling the intake air, enclosing the intercooler in water. Or do you mean injecting water into the intake, water injection? Edited December 14, 2010 by landroversforever Quote Link to comment Share on other sites More sharing options...
Exmoor Beast Posted December 14, 2010 Share Posted December 14, 2010 or spraying water onto the intercooler to chill it? Intelligent Intercooler spray Will Quote Link to comment Share on other sites More sharing options...
nicks90 Posted December 14, 2010 Share Posted December 14, 2010 if you are meaning an air to water intercooler instead of an air to air intercooler (which you currently have) - then its alot of complication for little benefit. there are advantages, air to water charge cooling is more efficient and you can use a smaller intercooler and hence get less turbo lag for a simillar charge temp drop. It wont affect peak boost though, thats set on your turbo. But it is a more complicated system, as the water from the charge cooler needs to be pumped and cooled down by a conventional radiator and fan - just like your engine coolant. Is it worth it? Depends if you have the room in the engine bay for it, can warrant the extra weight and complication for the reduced turbo lag and the cost. Just look at the vehicles that actually use this system - mustang cobra, shelby gt500, ford lightning - oh and marine engines where getting air into the engine bay is hard, but theres plenty of cold water to cool it. Nick Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted December 14, 2010 Share Posted December 14, 2010 Looking at the fitting instructions he's talking about injecting water/methanol into the intake manifold. Quote Link to comment Share on other sites More sharing options...
fozsug Posted December 14, 2010 Share Posted December 14, 2010 http://www.snowperformance.net/faqs_type.php?type=diesel Quote Link to comment Share on other sites More sharing options...
Diff Posted December 14, 2010 Share Posted December 14, 2010 Jim Attril on this site did it a year ago, and it has been discussed a few times. Have a read: http://forums.lr4x4....showtopic=26450 http://forums.lr4x4....showtopic=29572 http://forums.lr4x4....showtopic=31416 http://forums.lr4x4.com/index.php?showtopic=34188&st=0&p=332677&hl=methanol&fromsearch=1entry332677 http://forums.lr4x4.com/index.php?showtopic=44213&hl=methanol&st=0 Regards, Diff Quote Link to comment Share on other sites More sharing options...
TheRecklessEngineer Posted December 14, 2010 Share Posted December 14, 2010 Funnily enough, this has been shown to solve the ring gumming issue when running a direct injection engine on vegetable oil. Have a read of this Quote Link to comment Share on other sites More sharing options...
Adam001 Posted December 14, 2010 Share Posted December 14, 2010 Funnily enough, this has been shown to solve the ring gumming issue when running a direct injection engine on vegetable oil. Have a read of this Now that is interesting! Quote Link to comment Share on other sites More sharing options...
muddychris300tdi Posted December 15, 2010 Share Posted December 15, 2010 Wouldn't you get better results from propane injection? Quote Link to comment Share on other sites More sharing options...
windrover Posted December 17, 2010 Author Share Posted December 17, 2010 thanks for the replies...I need to do some more reading. because the 2.8l has a mechanical injection pump, unlike the td5, I am not sure how the water injection is timed. Quote Link to comment Share on other sites More sharing options...
nicks90 Posted December 17, 2010 Share Posted December 17, 2010 you could use a boost activated switch - so that the water injection only comes on under certain boost conditions, eg 15psi and above. Quote Link to comment Share on other sites More sharing options...
gsr341 Posted December 17, 2010 Share Posted December 17, 2010 ive thought of using it on my 300tdi challenge truck as i want to remove the intercooler , as its doing bugger all in challenge situation anyway . thought if i could inject a water/ethenol mix in the the inlest plenum it could possable keep inlet temps down a few degrees ? Quote Link to comment Share on other sites More sharing options...
Troll Hunter Posted December 21, 2010 Share Posted December 21, 2010 Have you considerd keeping your intercooler and adding an electric fan to blow/suck air through it even when the vehicle is stationary? I have this set-up, with the fan coming on automatically with the ignition. I can't give you figures on its effect, but from touch (vehicle stationary and bonnet up) there is a significant increase in manifold temperature if I switch the fan off (there's an over-ride switch). Mike Quote Link to comment Share on other sites More sharing options...
windrover Posted December 21, 2010 Author Share Posted December 21, 2010 that's a good thought, I could mount a small electric fan in front of the intercooler, wouldn't interfere with the viscous fan. Quote Link to comment Share on other sites More sharing options...
Warthog Posted December 21, 2010 Share Posted December 21, 2010 that's a good thought, I could mount a small electric fan in front of the intercooler, wouldn't interfere with the viscous fan. If the vehicle isnt goin to see mud? Then surely just a performance itercooler would be best? If its gonna be chucked in mud? The intercooler is just gonna be jammed with Sh^T and the electric fan will be very hard pushed to be of benefit Quote Link to comment Share on other sites More sharing options...
ludylandy Posted December 22, 2010 Share Posted December 22, 2010 or spraying water onto the intercooler to chill it? Before the kids came along I had a Fiat Coupe 20v turbo. This was tried by a forum member over there and made no difference in performance or charge temperatures. I don't have any experience of tuning diesel engines but my experience from the Coupe forum was that in terms of charge cooling the best gains were made from 1st improving the stock intercooler, then charge cooling with water and then water injection. Only highly tuned engines running boost levels in excess of 19psi went down the water injection route and then only after the other improvements. ive thought of using it on my 300tdi challenge truck as i want to remove the intercooler , as its doing bugger all in challenge situation anyway . Intercoolers are obviously at their most efficient when air is flowing over them but they will act as a heat sink when the air around them is more static. As long as the engine isn't constantly on boost then the heat sink effect will be of benefit. Quote Link to comment Share on other sites More sharing options...
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