How far have you gone on pump gas? Boost wise
08-03-2020, 10:34 AM
#21
How much power you guys making at such high psi? My car does 30ish HP per psi with twins. My buddies making 500 at 9psi with a single. Both on stage 2 cams with 5.3. I could t imagine running 16psi on either car on pump gas. Hell my tuner has me running M1 on the 14 I’m in now.
08-03-2020, 11:25 AM
#24
I"d drop 2* and grab some cheap br7 plugs. Then do a full pull. Can't really read an old plug. And at $8+ a plug tuning by the plugs will get pricey quick! Looks way to hot to me as well, but as said hard to tell.
Why no water/meth? Costs peanuts to put DIY kit on a car. 7gph-10gph of straight washer fluid pulls a lot of heat! Hell you can rig the windshield washer sprayer up pre turbo and it will help quite a bit. FWIW that's about the same timing and boost I run on e50 with water/meth. (no intercooler) It gives my 8 heat range plugs a nice safe heat range on the ground strap.
Why no water/meth? Costs peanuts to put DIY kit on a car. 7gph-10gph of straight washer fluid pulls a lot of heat! Hell you can rig the windshield washer sprayer up pre turbo and it will help quite a bit. FWIW that's about the same timing and boost I run on e50 with water/meth. (no intercooler) It gives my 8 heat range plugs a nice safe heat range on the ground strap.
08-03-2020, 11:56 AM
#25
He's been messaging me about the WMI stuff to nail down a setup. I think it'll really help keep things in 1 piece once thats on there, but I'd like to see him get the tune and plugs sorted prior to adding the meth kit so the WMI is just a cushion.
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Kfxguy (08-03-2020)
08-03-2020, 12:48 PM
#26
17psi but it was on 90 and I could only get like 3-4* of timing on it. I ran it like that last for the 2 weeks it took to ship my WMI controller back and get it replaced(it bricked). I can get 20psi at 8* with the meth. You can run a ton of boost if you pull all the timing. But on the track it did better with 14psi and 12* than it did with 17psi and 4* when I had no meth injection.
It was like a 13sec truck with 14psi and 12*, I ran it 11.2sec with 19psi and 8* and a cracked hotside pipe. It's about 4300lbs, long bed c10. I got a Cortex boost controller last week so I'm eager to get back and try again with some actual traction control via boost control. Was running a $15 bleeder valve before.
It was like a 13sec truck with 14psi and 12*, I ran it 11.2sec with 19psi and 8* and a cracked hotside pipe. It's about 4300lbs, long bed c10. I got a Cortex boost controller last week so I'm eager to get back and try again with some actual traction control via boost control. Was running a $15 bleeder valve before.
08-03-2020, 01:35 PM
#27
I"d drop 2* and grab some cheap br7 plugs. Then do a full pull. Can't really read an old plug. And at $8+ a plug tuning by the plugs will get pricey quick! Looks way to hot to me as well, but as said hard to tell.
Why no water/meth? Costs peanuts to put DIY kit on a car. 7gph-10gph of straight washer fluid pulls a lot of heat! Hell you can rig the windshield washer sprayer up pre turbo and it will help quite a bit. FWIW that's about the same timing and boost I run on e50 with water/meth. (no intercooler) It gives my 8 heat range plugs a nice safe heat range on the ground strap.
Why no water/meth? Costs peanuts to put DIY kit on a car. 7gph-10gph of straight washer fluid pulls a lot of heat! Hell you can rig the windshield washer sprayer up pre turbo and it will help quite a bit. FWIW that's about the same timing and boost I run on e50 with water/meth. (no intercooler) It gives my 8 heat range plugs a nice safe heat range on the ground strap.
I have a nozzle preturbo right now. Tried it a couple times, felt like it gave it a little bit of a nudge (felt smoother is how I can describe it) but of course I didnt see an IAT reduction. I thought I would, but i Only see 2 degrees. Guess thats better than rising? maybe I just need to start using it till I have the time to do the whole system i was planning.
08-03-2020, 01:39 PM
#29
17psi but it was on 90 and I could only get like 3-4* of timing on it. I ran it like that last for the 2 weeks it took to ship my WMI controller back and get it replaced(it bricked). I can get 20psi at 8* with the meth. You can run a ton of boost if you pull all the timing. But on the track it did better with 14psi and 12* than it did with 17psi and 4* when I had no meth injection.
It was like a 13sec truck with 14psi and 12*, I ran it 11.2sec with 19psi and 8* and a cracked hotside pipe. It's about 4300lbs, long bed c10. I got a Cortex boost controller last week so I'm eager to get back and try again with some actual traction control via boost control. Was running a $15 bleeder valve before.
It was like a 13sec truck with 14psi and 12*, I ran it 11.2sec with 19psi and 8* and a cracked hotside pipe. It's about 4300lbs, long bed c10. I got a Cortex boost controller last week so I'm eager to get back and try again with some actual traction control via boost control. Was running a $15 bleeder valve before.
you'll really like the cortex once you get that dialed. It has two output channels that have several options for activation. The boost by gear works flawless. I can control mine down to 5psi in first gear and up to 19-20 in 3rd. Without this controller, my car would be uncontrollable.
08-03-2020, 03:16 PM
#30
I have a nozzle preturbo right now. Tried it a couple times, felt like it gave it a little bit of a nudge (felt smoother is how I can describe it) but of course I didnt see an IAT reduction. I thought I would, but i Only see 2 degrees. Guess thats better than rising? maybe I just need to start using it till I have the time to do the whole system i was planning.
08-03-2020, 03:37 PM
#31
IAT's aren't important IMO. You'll get bogus readings with lots of volume anyway. Getting the water in the cylinder where it can pull heat is what matters. I literally "felt" no difference. My e85 intercooled rx7 runs the same times at 22lbs with the 10gph of on/off. Can't even feel it come one. That's what you want IMO. But if you look at the plug, it's noticeably cooler with the water/meth (washer fluid) on. Not to say other gains aren't to be had with a better kit and more volume, higher meth % etc. Just saying for a cheap simple on/off kit at low volumes... you get a cooler cylinder with it. Not so much a performance mod as safety mod. Unless you up the boost of course. 
08-03-2020, 06:12 PM
#33
IAT's aren't important IMO. You'll get bogus readings with lots of volume anyway. Getting the water in the cylinder where it can pull heat is what matters. I literally "felt" no difference. My e85 intercooled rx7 runs the same times at 22lbs with the 10gph of on/off. Can't even feel it come one. That's what you want IMO. But if you look at the plug, it's noticeably cooler with the water/meth (washer fluid) on. Not to say other gains aren't to be had with a better kit and more volume, higher meth % etc. Just saying for a cheap simple on/off kit at low volumes... you get a cooler cylinder with it. Not so much a performance mod as safety mod. Unless you up the boost of course.
gotcha.
08-03-2020, 07:56 PM
#34
08-03-2020, 09:46 PM
#35
Aight. I’m still figuring out this boost controller. I was trying to use closed loop but something wasn’t jiving so it was fluctuating the boost in third gear and I could always feel it being held back. That was a major killer right there. I turned closed loop off and just used open loop. So I get 18psi in second gear and 19 in third with a surge of 20.1 on the 2-3 shift. So I ran a couple logs just now.
afr 10.8
duty cycle 71.2% at 6800 in second 223.9kpa
timing is 12.9* at that point
rpm drops to 5359 on the 2-3, from a 6800rpm shift. Timing drops to 7.5 at the shift.
Then tapers back up to 12* by 5500
coolant temp at the end of the run was 181f
iat was 131f. Higher than I thought. So yea, I’m hooking up the washer pump this week to spray pre turbo till I get a chance to do it correctly. That should give a little extra safety cushion.
i took 1/2 degree timing out. Pulled 2 degrees more in the 2-3 shift. Smoothed our my fuel map. I lied earlier by accident. My afr was closer to 10.5, so I took a touch away to get it to 10.8.
afr 10.8
duty cycle 71.2% at 6800 in second 223.9kpa
timing is 12.9* at that point
rpm drops to 5359 on the 2-3, from a 6800rpm shift. Timing drops to 7.5 at the shift.
Then tapers back up to 12* by 5500
coolant temp at the end of the run was 181f
iat was 131f. Higher than I thought. So yea, I’m hooking up the washer pump this week to spray pre turbo till I get a chance to do it correctly. That should give a little extra safety cushion.
i took 1/2 degree timing out. Pulled 2 degrees more in the 2-3 shift. Smoothed our my fuel map. I lied earlier by accident. My afr was closer to 10.5, so I took a touch away to get it to 10.8.
Last edited by Kfxguy; 08-03-2020 at 10:16 PM.
08-04-2020, 09:29 AM
#40
I wouldn't... You can get the same nozzle for $5. Their pumps are nice, but also not necessary for a single on low volume setup IMO. Simple $20 water pump a few pushlock nylon fittings and line and a 5$ nozzles is really all thats needed IMO.
http://www.greatplainsupply.com/en/nozzles/110-outside-mount-nozzles-do1.html
The pressure switches there are the same Devils own stocks as well. But I've had them fail. I've never had a hobbs brand pressure switch fail. I'd go that route personally.
http://www.greatplainsupply.com/en/nozzles/110-outside-mount-nozzles-do1.html
The pressure switches there are the same Devils own stocks as well. But I've had them fail. I've never had a hobbs brand pressure switch fail. I'd go that route personally.