Why not just spray the 75 shot? In the article mentioned above the 125 shot only made 20 hp more than the 125 shot.mustang351 said:I am fixing to order my Zex Nitrous tommorrow and my question is will a 125hp be too much on a 150,000 mile motor I will be using it every weekend.
OH and has anyone run a 125 shot on a stock car and if so what are the ETs
I was there when they shot that ZEX install on Michael Johnsons coupe in 5.0 Magazine a while back. I also saw the dyno runs and when they put the 125 shot on it popped the head gasket. Then they were there until 10:30 at night trying to put it back together so he could drive home.forrealb50 said:What convinced me in buying the zex kit was an article in a Mustang magazine where they put the zex kit on a 5.0 with like 125,000 miles and it ran strong. So, it was good enough for that car.
When my car only had a cold air intake and exhaust I ran high 12's with the 125 shot. I also had to upgrade the fuel pump to a 255lph...
I think your talkin about another car than he is, the car in the mmff tech guide is Chris Winters GT but the car you mentioned is a good example of what could happen....If I had 1 car with 120k+ miles I don't think I could trust a 125shot except maybe a couple times at the track89sleeper said:I was there when they shot that ZEX install on Michael Johnsons coupe in 5.0 Magazine a while back. I also saw the dyno runs and when they put the 125 shot on it popped the head gasket. Then they were there until 10:30 at night trying to put it back together so he could drive home.
Oh ok. That is the one that came to my mind. I think it was the first article on the ZEX kit. I wouldn't trust it for long either.mattkimsey said:I think your talkin about another car than he is, the car in the mmff tech guide is Chris Winters GT but the car you mentioned is a good example of what could happen....If I had 1 car with 120k+ miles I don't think I could trust a 125shot except maybe a couple times at the track
Michael Yount said:I'm with Shorty - check out the integrity of the motor before you put the juice to it. Cranking compression numbers and a leak down test on any low cylinders. Does the car burn oil? If so how much (qts./miles)? If you're burning a quart every 1000-1500 miles (or worse), spraying it is only gonna speed up it's demise. Running compression numbers is a small investment to make to give you some idea that nothing untoward is gonna happen when you spray it. Note the increase in fuel pump size - the stock pump won't keep up with the fuel needs when you spray it. And if you run it lean under spray - well, it won't matter what kind of shape the engine was in - you'll hurt something.
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