Happy with n/a #'s but spray
Happy with n/a #'s but spray I have a 2001 z-28 a4. The mods are a Torquer V.2 cam 232/234 .595/.598 114lsa, Dynotune wet kit, 38lbs injectors, Walbro 255 intank pump, Fuddle 3600rpm stall, 3.73's, Flowtech LT's, Loudmouth, Underdrive pulley, Msd window switch, K&N filter, and HP Tuners by me.
n/a the car made 389.21hp/359.58tq sae
spray was 472.93hp/439.40tq sae
The runs were made with the converter locked, and the spray was turned on at 4000rpm I think. I was using the 57/32 jets which are rated for 150hp at the crank but didn't even get 100hp.
Why would my spray numbers be so low? Torque???
At the track I ran 12.1@112 n/a, and a 11.8@117 n2o but I couldnt 60ft better than a 1.71 this time out so?
n/a the car made 389.21hp/359.58tq sae
spray was 472.93hp/439.40tq sae
The runs were made with the converter locked, and the spray was turned on at 4000rpm I think. I was using the 57/32 jets which are rated for 150hp at the crank but didn't even get 100hp.
Why would my spray numbers be so low? Torque???
At the track I ran 12.1@112 n/a, and a 11.8@117 n2o but I couldnt 60ft better than a 1.71 this time out so?
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Joined: Aug 2004
Posts: 443
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From: Tyler, TX.
"Fuddle 3600rpm stall"-That's your problem! I had the same stall and my numbers were way off as well. I changed out the piece of **** fuddle and gained 40 rwhp on the first pull with the new convertor. Fuddle = 
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I guess that does make sinse though because before gears, underdrive, cam. I ran 11.7x@118 on the juice, and afters those things for it to trap about the same it would have to be blow through wouldn't it? I had wondered about blow through but wasnt sure if could happen with the stall locked. I guess next time at the dyno/track i'll try the smaller jets and see what happens.
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