i went up to utah thursday to get utah viper's methanol water injection system installed. todd gave me a ride in his car and the system was very impressive. we were driving around and his intake temps rose to as high as 210-220. just from hitting his purge his temp would drop at least 50 degrees or more(depending how long he held the purge). ok then he showed me what the system was capable of. i was watching the intake temp gauge and when ever he hit the throttle the temps would drop like a rock. just one example was a 210 degree start going down to 110 in a matter of seconds. the intake temp would hold that low temp for awhile even when cruising and off the **** water.
we then jump into my car(01 rt vipair air-70mm tb-td 1.7 rockers-bb 1 3/4 headers-corsa-roe blower 7lb). my air fuel was way lean so we did one run so he could see. oh by the way, i have the new AEM wideband with the 2" gauge that is mounted to my a pillar(elite ms) that works perfectly. the only draw back to this wideband is that it does not read anything richer than 11.0. it has a nice white face dial with silver bezel, a sweeping reading and also a digital reading numeric reading. after one adjustment todd gets me to the desired a/f. we then go to the closed coarse and g tech a few runs. my launches were horrible so we will just go on.
the next day we have the system installed. after the install we hook up a portable boost gauge to check how much boost i am making. we make a pull and the boost is 6 1/2 creeping to a little over 7. we then make a runs so we can tune with the water methanol injection.we slowly start adding timimg and taking out fuel. within a couple of adjustments we have the car running 11.0-11.3. we set it there since elevation there was 4500ft and vegas is only 2100ft and it seemed a/f was affected by -.5 up there.
we checked the boost and now i was boosting 8.5 starting and when it hit 5000rpm it was going up to 10lbs. before the m/w install i had to get off the throttle @5200 -5400 rpms because my injectors were maxed. now i can take it up to 6000rpms and the a/f was still 11.0. we did some g-tech runs but could not get traction or a good launch. the car was pulling harder though and we got rid of the hiccup it was having without the m/w. it was late so i dropped off tood and i headed back to vegas.
yesterday i went to meet our usual guys that we do our sunday rolls with. all the fast cars were down so i did not get to see how much fatser the car is. i did give a friend a ride and we did some runs so he could feel the difference. he was very surprised at the pull my car had now. it did not pull harder before but now the higher the rpm the more my car pulled. we headed back and after i parked we put our hands on the blower and it was cold! the temps outside was sunny and 80's. he was really shocked about that.
so, i have more boost now and i have my timing advanced 6 1/2 degrees more than i had on 100 octane gas. i don't have to upgrade my fuel system and i can rev it to the max. i am going to advance more timing this weekend and maybe even put on the 8lb pulley i have. i would do more but i have those damn cast pistons.
i want to thank todd for all his help. he took off work early on thursday and most of friday. he also let me use his turbo diesel while i was up there.
ps. todd i checked my air pressure yesterday and it was set at 37 pds. i guess the tire place put a little to much air in it.
we then jump into my car(01 rt vipair air-70mm tb-td 1.7 rockers-bb 1 3/4 headers-corsa-roe blower 7lb). my air fuel was way lean so we did one run so he could see. oh by the way, i have the new AEM wideband with the 2" gauge that is mounted to my a pillar(elite ms) that works perfectly. the only draw back to this wideband is that it does not read anything richer than 11.0. it has a nice white face dial with silver bezel, a sweeping reading and also a digital reading numeric reading. after one adjustment todd gets me to the desired a/f. we then go to the closed coarse and g tech a few runs. my launches were horrible so we will just go on.
the next day we have the system installed. after the install we hook up a portable boost gauge to check how much boost i am making. we make a pull and the boost is 6 1/2 creeping to a little over 7. we then make a runs so we can tune with the water methanol injection.we slowly start adding timimg and taking out fuel. within a couple of adjustments we have the car running 11.0-11.3. we set it there since elevation there was 4500ft and vegas is only 2100ft and it seemed a/f was affected by -.5 up there.
we checked the boost and now i was boosting 8.5 starting and when it hit 5000rpm it was going up to 10lbs. before the m/w install i had to get off the throttle @5200 -5400 rpms because my injectors were maxed. now i can take it up to 6000rpms and the a/f was still 11.0. we did some g-tech runs but could not get traction or a good launch. the car was pulling harder though and we got rid of the hiccup it was having without the m/w. it was late so i dropped off tood and i headed back to vegas.
yesterday i went to meet our usual guys that we do our sunday rolls with. all the fast cars were down so i did not get to see how much fatser the car is. i did give a friend a ride and we did some runs so he could feel the difference. he was very surprised at the pull my car had now. it did not pull harder before but now the higher the rpm the more my car pulled. we headed back and after i parked we put our hands on the blower and it was cold! the temps outside was sunny and 80's. he was really shocked about that.
so, i have more boost now and i have my timing advanced 6 1/2 degrees more than i had on 100 octane gas. i don't have to upgrade my fuel system and i can rev it to the max. i am going to advance more timing this weekend and maybe even put on the 8lb pulley i have. i would do more but i have those damn cast pistons.
i want to thank todd for all his help. he took off work early on thursday and most of friday. he also let me use his turbo diesel while i was up there.
ps. todd i checked my air pressure yesterday and it was set at 37 pds. i guess the tire place put a little to much air in it.