Max nitrous for SBE and E85
05-27-2017, 07:52 PM
#21
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We had a stock 6.0 in a single cab truck that made 286hp a the wheels on motor and sprayed 400 on 93 pump gas. It really liked 350 the most, tried 400 and then 450 and hardly gained any et from 350 to 450. The other issue is we had a small feed line so it may not have been getting enough nitrous above 350. In our mile car (built motor) we spray 500 for 18 seconds on 105 oct unleaded. I dont think the E85 on a stock motor will help trying to run alot nitrous IMO.
05-27-2017, 10:56 PM
#22
Stock LQ9 from salvage yard, had 3 stages, two wet and one dry, no direct port. We bought a ton of LQ9's back then and put most of them in 4th gens and spray atleast 300 on all of them. Most of them we did atleast cams and some heads also. It comes down to tuning and running the correct spark plugs IMO. Most people just dont know how to tune nitrous.
06-01-2017, 03:56 PM
#24
TECH Junkie
you mean you're NOT supposed to just go out there and spray the 250 on the first pass?! but the jet chart says it will be perfect!!
I kid I kid. I think putting in the time to sort out a NA tune, then slowly jet up to a large shot, recording the jet changes to find a trend, seeing how much timing is pulled at increasing levels, etc...I think it's just too much work for most people. They want to just throw in the big hit and hope for the best.
I kid I kid. I think putting in the time to sort out a NA tune, then slowly jet up to a large shot, recording the jet changes to find a trend, seeing how much timing is pulled at increasing levels, etc...I think it's just too much work for most people. They want to just throw in the big hit and hope for the best.
06-07-2017, 03:16 PM
#26
We went through over 100 plugs on the dyno before making a pass on 500 at the mile. There were some issues with the car, changed fuel pumps, replumbed fuel delivery, changed nitrous controllers but much rather find all those issues on the dyno than at the mile and have no time to fix it. Regardless tuning takes time, last thing you want to do is rush when spraying that much nitrous.
08-22-2018, 11:01 PM
#28
Back up top. Tried the 150 in my 89 coupe with the gen 4 5.3. Worked well. Went to 200 jetting and only gained a MPH.
swappong to a stinger plate. Stinger 3. Going back to 150 and then 200. 93 with 116 in the stand alone.
going to swap to a larger radiator and a lower than stock thermostat and see if that helps since the car gets to 210 after a 1/8 mile hit as it is.
really wanna hit it with 250, so I’ll work up and see what happens. Tempted to get it converted to E85 to help.
swappong to a stinger plate. Stinger 3. Going back to 150 and then 200. 93 with 116 in the stand alone.
going to swap to a larger radiator and a lower than stock thermostat and see if that helps since the car gets to 210 after a 1/8 mile hit as it is.
really wanna hit it with 250, so I’ll work up and see what happens. Tempted to get it converted to E85 to help.
08-23-2018, 10:06 AM
#29
TECH Junkie
Didn't pick up much of anything by stepping up the hit. By changing plate, I'm assuming you must be thinking the plate/solenoids are the bottleneck and you just can't flow enough?
I'm thinking that making a 150 hit and weighing the bottle
then making a 200 hit and weighing the bottle
would be a good way to see if you have a bottleneck or if you're blowing through the converter
I'm thinking that making a 150 hit and weighing the bottle
then making a 200 hit and weighing the bottle
would be a good way to see if you have a bottleneck or if you're blowing through the converter
08-23-2018, 11:03 AM
#30
The current plate I am using has 4 or more people with the same plate telling me that they hit a wall past a 175 jetting and gained hardly anything going from 150 to 200 or 250. They swapped nitrous systems and at the same jetting picked up power. Even claiming they went faster on the same jetting at 150 on a different kit. Crazy. In my searching I did find NX say that to go past 175 or something, you need their higher flow line from the solenoid to plate. 50$ for one line. I messaged them to see what they say and got no reply.
so, the stinger 3 plate will cure any worries on that front. Will try the 150 and work up from there. I’ll report back for sure.
so, the stinger 3 plate will cure any worries on that front. Will try the 150 and work up from there. I’ll report back for sure.
08-24-2018, 03:35 PM
#33
6.0 lq4 (ARP main studs)
Ls3 heads (mild port) (ARP head bolts)
Custom Cam by SRD 236/252 112+5
Wisco Pro Tru Piston (small dome)
stock gen rods
ARP 2000 rod bolt
super Victor intake
750 Holley
08-24-2018, 04:06 PM
#35
I was thinking around 150-200 but I wanted to know what would be considered pushing it, and if I did what kind of numbers do similar setups put down.
08-24-2018, 10:42 PM
#36
That combination you listed should make 550ish at the flex plate.
a 150 shot is safe for a V8. Especially a LS.
to be safe, a BR7EF plug at .032 gap would work great, but hurt power on motor a bit. A TR6 is fine if you know how to tune and have extra octane gapped around the same.
Past 150, you really need to learn how to read plugs and how to get them swapped after a pass.
a 150 shot is safe for a V8. Especially a LS.
to be safe, a BR7EF plug at .032 gap would work great, but hurt power on motor a bit. A TR6 is fine if you know how to tune and have extra octane gapped around the same.
Past 150, you really need to learn how to read plugs and how to get them swapped after a pass.
08-25-2018, 12:13 AM
#37
My neighbor had a guy on his dyno one time with a nice late '60s Mustang. I forget which v8 it had, but it really did not like the first hit of a 250 shot with 46* of timing. I never saw heads push that much water. The plug electrodes resembled welding slag.
08-26-2018, 12:58 AM
#38
The current plate I am using has 4 or more people with the same plate telling me that they hit a wall past a 175 jetting and gained hardly anything going from 150 to 200 or 250. They swapped nitrous systems and at the same jetting picked up power. Even claiming they went faster on the same jetting at 150 on a different kit. Crazy. In my searching I did find NX say that to go past 175 or something, you need their higher flow line from the solenoid to plate. 50$ for one line. I messaged them to see what they say and got no reply.
so, the stinger 3 plate will cure any worries on that front. Will try the 150 and work up from there. I’ll report back for sure.
so, the stinger 3 plate will cure any worries on that front. Will try the 150 and work up from there. I’ll report back for sure.
08-26-2018, 09:52 AM
#39
The car was 60 footing slower on gas. Had the converter worked over and now it picks up pretty good so far. Now I’m working on suspension.
4 other people with the same NX plate I was using reported the same issue I had. I will report back on the after effect.
I fojnd a old old thread where NX said you needed their higher flow line to the plate. I messaged them and they have yet to respond to verifying.
4 other people with the same NX plate I was using reported the same issue I had. I will report back on the after effect.
I fojnd a old old thread where NX said you needed their higher flow line to the plate. I messaged them and they have yet to respond to verifying.