Spray plus boost
May 21, 2012 | 04:06 PM
#12
Thread Starter
On The Tree
Joined: Jul 2010
Posts: 154
Likes: 0
From: Colorado Springs, Colorado
Yeah, I have a water to air IC. I think the twin screw blowers don't make as much heat as the roots either, I've ran my truck real hard for a little while, got out and felt the IC heat exchanger and it's never been hot to the touch.
I know it is hard for you maggie guys to grasp with your big ole heat pumps
May 21, 2012 | 04:12 PM
#13
Thread Starter
On The Tree
Joined: Jul 2010
Posts: 154
Likes: 0
From: Colorado Springs, Colorado
Oh yeah, definitely need to sure up the fuel system. I was looking at one of two options. Either go with a high output in-tank pump, or adding a stand-alone fuel system just for the nitrous. NX makes a nice one, it's a one gallon fuel cell with it's own pump and regulator that supplies the N2O system with fuel. It fits in the factory spare battery tray. I think it seems pretty slick, you can put whatever you want in it, pump gas, race fuel, whatever.
May 21, 2012 | 04:13 PM
#14
Thread Starter
On The Tree
Joined: Jul 2010
Posts: 154
Likes: 0
From: Colorado Springs, Colorado
May 21, 2012 | 04:27 PM
#15
If the tune is good u will be ok. But if it get any ping it will crack the pistons. I know!! I have ran nos on lot of difference car. I'm going to run 30lb of boost and a 50shot on the GTR but that on good pistons and etc. Stock pistons do'nt like ping!!!!!!
May 21, 2012 | 04:30 PM
#16
Race gas would deff help!
keep the AFRs around 11.0-11.2 to be safe and pull timing and work it back in slowly.
I had a single Walbro 255 and on 9# and the 50 shot it was loosing pressure from 4500+
i know its not apples to apples.. but i had a 60mm rear mount turbo and the 50 shot on 6psi added 64hp and 90ftlb torque at the wheels at 10.8 AFR. bone stock LQ4.
keep the AFRs around 11.0-11.2 to be safe and pull timing and work it back in slowly.
I had a single Walbro 255 and on 9# and the 50 shot it was loosing pressure from 4500+
i know its not apples to apples.. but i had a 60mm rear mount turbo and the 50 shot on 6psi added 64hp and 90ftlb torque at the wheels at 10.8 AFR. bone stock LQ4.
May 21, 2012 | 04:33 PM
#17
I wouldn't go by "touch" I would be logging IAT and seeing what they do.
May 21, 2012 | 04:45 PM
#18
May 21, 2012 | 04:48 PM
#19
I can do a pull from 0-110 and see IAT's reach 145-150 at the end of the pull. Drive for half a mile and they are back down to 20-30 above ambient.
Logging is the only way to know for sure what they are doing, especially if you plan to do back to back pulls
Logging is the only way to know for sure what they are doing, especially if you plan to do back to back pulls
May 21, 2012 | 05:07 PM
#20
Thread Starter
On The Tree
Joined: Jul 2010
Posts: 154
Likes: 0
From: Colorado Springs, Colorado
I think my reasoning for not simply adding more boost instead of spraying is that I will be keeping IATs down by spraying and gaining the oxygen density back that I'm losing at my altitude.
So I'm kinda liking the idea of running around with only 8psi most of the time and only stressing the motor with another 100-120hp when I need to, like at the track, or, eh, the occasional "unsanctioned" race event.
