LS3 150 shot problems
05-22-2013, 10:41 PM
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Staging Lane
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LS3 150 shot problems Quick rundown on whats going on. I have a camaro with a ls3 with h/c/i, 4l60 w/ss4000 and it usually runs 10.4s to 10.7s @ 128-130mph on motor. I recently put a nice plate kit on it with a 150 shot. The car feels fast but its not putting down a good time at the track. Best of a 10.24@132mph 1.44 60ft. Something seems off. The tune is good a little on the rich side 11.7afr but its not picking up like i thought it would on a 150 shot. Any suggestions??
Last edited by TheBlack99ss; 05-22-2013 at 11:06 PM.
05-22-2013, 10:45 PM
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Staging Lane
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Also wanted to add the tunner said on the hit the converter is slipping about 1800rpm but goes down to around 900rpm so im not sure if a stall this large is hurting me alot or not
05-23-2013, 12:10 AM
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Your transmission clutches could also be slipping from the torque increase while on the bottle. A 150 Shot of N20 gives you approx. 180 ft. lb. of torque increase.
Last edited by NOS LS1; 05-24-2013 at 09:10 PM.
05-23-2013, 07:56 AM
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The bottle only had 2 short pulls on it so it was full enough. As far as timing it was at 24 degrees with a mix of 110 and 93 octane fuel. The car has 3 x pipe on it also. The mph isn't there but it feels strong all the wy down the track??
05-23-2013, 08:14 AM
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do you have the ability to log data? is your converter slipping? post up a picture of plugs. also what does your motor usually run for timing with out nitrous?
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05-23-2013, 12:35 PM
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yea id try around 22 or 23 deg with a 62/31 or similar. but my guess would be that its blowing thru the converter as well. Arent the ss4000 known to be on the loose side of things? Also, i know you stated it didnt pick up in 1/4 et/mph as much as you thought. But looking at the full slips side by side. Did it pick up any at the 330', 1/8th, 1000' marks?
05-23-2013, 05:45 PM
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yea id try around 22 or 23 deg with a 62/31 or similar. but my guess would be that its blowing thru the converter as well. Arent the ss4000 known to be on the loose side of things? Also, i know you stated it didnt pick up in 1/4 et/mph as much as you thought. But looking at the full slips side by side. Did it pick up any at the 330', 1/8th, 1000' marks?
05-23-2013, 05:54 PM
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With a 3.50 gear and that converter on spray, I would put money on the converter being far too loose for spray.. That 3.50 gear will load the converter too much for what you are doing.
Also, you mentioned what it 60's on spray.. What does it do on HP?
Also, you mentioned what it 60's on spray.. What does it do on HP?
05-23-2013, 07:31 PM
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I'm currently leaving on motor and turning on the spray immediately after the 60ft so that 1.44 was done n/a. Our track wasn't good enough that day to leave off the line on spray