09-21-2016 | #61 | |
Join Date: Nov 2011
Location: Dunbarton NH
Posts: 7,534
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Re: Nitrous
Quote:
WOT switch, gives a shot every time you hit W.O.T.? |
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09-21-2016 | #62 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,188
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Re: Nitrous
Set up for nitrous to turn on only when TPS reads WOT, starts spraying at 3500RPM shuts down at 6800 RPM; redline is 7200RPM. I also changed fuel pumps, filter, ohmd the injectors, and my O2 sensors are showing fueling is good in the base tune
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
09-21-2016 | #63 |
Join Date: Mar 2004
Location: Found Member
Posts: 4,341
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Re: Nitrous
Wet system is very brave on the LT5.
I have boxes of new NGK spark plugs for nitrous (Cold) if you need them.
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Frank Urbo. NCM Lifetime member # 982 Registry Founding # 237 |
09-21-2016 | #64 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,188
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Re: Nitrous
I was just on the line w/Zex tech......issue for nitrous backfire is typically when the car is too lean......if I have fuel puddling in the intake at 3500RPM I have a serious problem; my A/F ratio on the car currently averaging 12.5:1 ....richest is 11.8
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 Last edited by LGAFF; 09-21-2016 at 11:37 AM. |
09-22-2016 | #65 |
Join Date: Jul 2010
Location: Woodstock, Ontario, Canada
Posts: 1,275
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Re: Nitrous
We are talking about 9-1/2hp per hole, you have gone above and beyond so for as safety measures are concerned.
The cooling effect as the Nitrous Oxide phase changes from liquid to gas inside your air intake would on its own deliver measureable increases, before the benefit of extra Oxygen and gasoline are accounted for. Does this LT5 have Port Throttles? (I'm guessing not, but cant remember for sure) I can hardly wait for your successes.
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peace Paul ZR-1 Net Registry Member #1494 |
09-22-2016 | #66 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,188
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Re: Nitrous
Nope, they have been removed......
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
10-24-2016 | #67 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,188
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Re: Nitrous
Ran the nitrous today; no explosions Car pulls, squats hard, pretty seamless with a 75 shot, can light the tires up from 2nd gear roll. Probably need to tune it on the dyno, will probably just jump to the 100 shot
I used a 180 ohm resistor to pull timing via the IAT
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
10-24-2016 | #68 |
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,188
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Re: Nitrous
Something to keep in mind, while nitrous is cheap you spend about 60 per 10lb bottle, that will add up over time
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 Last edited by LGAFF; 10-24-2016 at 10:00 PM. |
10-24-2016 | #69 |
Join Date: Aug 2014
Location: Kansas City, MO
Posts: 836
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Re: Nitrous
Sounds like a lot of fun.
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Looking for a ZR-1 1985 Yamaha RZ350-NOT STOCK 1971 Yamaha AT1-Middle of a restoration |
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