MAC Posted March 17, 2004 Report Share Posted March 17, 2004 I’m thinking about buying a water injection system and I’m curious if there are any opinions and recommendations, particularly concerning the Northstar engine. Mike Link to comment Share on other sites More sharing options...
Luke Posted March 17, 2004 Report Share Posted March 17, 2004 I installed the Aquatune Water Injection system ( http://www.aquatune.com ) on a 1998 STS I used to have. It cost about $350. It was very interesting but I really wouldn't recommend buying one. Here are some of their claims: *More horse power and a higher torque range! *From 25% and up increase in fuel economy! *Up to 30% increase in horse power! *Gets rid of harmful carbon deposits! *Pass previously failed DEQ checkouts! First of all, the horsepower claim....I noticed absolutely 0 power gain. I have heard that water injection does add power on turbo and supercharged engines because of a cooling effect but not on normally aspirated engines. As far as the increase in fuel economy....yes, it helped there. Believe it or not, I observed gas mileage of ~32 MPG at about 68 MPH....in an STS no less. It really will remove carbon deposits. The real pain about the system is that you really have to run 50% water and 50% isopropyl alcohol. I ran it with pure water and the engine kept stalling and plumes of steam were coming from the exhaust. It ran great with the 50/50 mix though. Also, the bottle that the system comes with to fill with water holds about 2 quarts of water. They claim that it holds enough water to drive about 200-250 miles. Well, in my experience, it ran dry after about 75-100 miles. Their 30 day money back guarantee is good. I returned the system and they refunded my money. Link to comment Share on other sites More sharing options...
wgt31 Posted March 17, 2004 Report Share Posted March 17, 2004 I have it on my Syclone, its just like a nitros shot. Front end lifts and the accel force pushes you in the seat that much further. Shot comes on a 10lbs of boost lowered my intake temp drastically. I love it!!!!! I run a 50/50 mix alcohol and water. Link to comment Share on other sites More sharing options...
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