Multiple questions about my setup, any input appreciated
Jul 16, 2015 | 10:23 PM
#51
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From: Dallas
I just saw that the 1300s are actually 1300cc at 3 bar. At 4 bar, they are 147 lbs/hr. That supposedly can support 1200 hp at the engine, so it will be cutting it close for 1000 rwhp.
Jul 17, 2015 | 09:20 AM
#54
Joined: Jan 2006
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From: Huntsville, AL
Im assuming those are rated at 4bar?
If so those will max out around 750rwhp regardless of what pump you have. Looks like you have an injector flow of about 460L/hr at a base pressure of 58psi and 95% IDC on e85 and a pump flow of about 647L/hr at 80psi, so you should have plenty of pump.
1300cc/min injectors at 3bar will get you to about 1030rwhp at a 50psi base and the dual 450s should hold pressure to about 30psi of boost.
I would put a pressure gauge on the rail to see whats going on under power. High IDC is a good indication your pumps arent working right or there is some other restriction going on. Also suggest testing the voltage at the pumps.
If so those will max out around 750rwhp regardless of what pump you have. Looks like you have an injector flow of about 460L/hr at a base pressure of 58psi and 95% IDC on e85 and a pump flow of about 647L/hr at 80psi, so you should have plenty of pump.
1300cc/min injectors at 3bar will get you to about 1030rwhp at a 50psi base and the dual 450s should hold pressure to about 30psi of boost.
I would put a pressure gauge on the rail to see whats going on under power. High IDC is a good indication your pumps arent working right or there is some other restriction going on. Also suggest testing the voltage at the pumps.
Jul 17, 2015 | 09:35 AM
#55
1000cc at 3 bar. I ran those same injectors and never ran out of fuel on E43. Looking at an old log...260kpa MAP, 6300rpm, 6.3L, 11.1AFR only put them at 89% duty cycle. I wanna say it was just a hair over 750 at the wheels 
Jul 17, 2015 | 12:07 PM
#56
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From: Dallas
Im assuming those are rated at 4bar?
If so those will max out around 750rwhp regardless of what pump you have. Looks like you have an injector flow of about 460L/hr at a base pressure of 58psi and 95% IDC on e85 and a pump flow of about 647L/hr at 80psi, so you should have plenty of pump.
1300cc/min injectors at 3bar will get you to about 1030rwhp at a 50psi base and the dual 450s should hold pressure to about 30psi of boost.
I would put a pressure gauge on the rail to see whats going on under power. High IDC is a good indication your pumps arent working right or there is some other restriction going on. Also suggest testing the voltage at the pumps.
If so those will max out around 750rwhp regardless of what pump you have. Looks like you have an injector flow of about 460L/hr at a base pressure of 58psi and 95% IDC on e85 and a pump flow of about 647L/hr at 80psi, so you should have plenty of pump.
1300cc/min injectors at 3bar will get you to about 1030rwhp at a 50psi base and the dual 450s should hold pressure to about 30psi of boost.
I would put a pressure gauge on the rail to see whats going on under power. High IDC is a good indication your pumps arent working right or there is some other restriction going on. Also suggest testing the voltage at the pumps.
Adding an electronic FP gauge would be easy with the port on the regulator. I have an analog gauge on it now but obviously can't see it when driving.
I'm curious why you think I have a restriction. At 16-17 psi I'm in the 750 range with trap speed to back that up. KBr and I have eerily similar setups and he put down 750 rwhp on 15 psi. Why not that ive simply maxed out the injector? My Afr's were actually rich (7.1:1) right up until my IDC would hit low to mid 90s the afr would go up into the 8s.
I could bandaid it with a lower E % but I'm trying to keep a stock motor together here.
Jul 17, 2015 | 12:20 PM
#58
Joined: Jan 2006
Posts: 16,282
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From: Huntsville, AL
You very well may be maxing them out then. If IDC goes over 100% and pressure stays up then you are out of injector.
Pretty sure jake is using gas scale numbers since most people dont adjust for stoich of e85 or just make it real easy and read lambda. .75 with gas is 11:1.
Pretty sure jake is using gas scale numbers since most people dont adjust for stoich of e85 or just make it real easy and read lambda. .75 with gas is 11:1.
