Crawford Racing squeezes 841 RWHP from stock LT4 fuel system on full E85!!??
03-13-2018, 10:14 AM
#1
Former Vendor
Thread Starter
Crawford Racing squeezes 841 RWHP from "stock" LT4 fuel system on full E85!!??
Copied over from the ZO6 sub-forum:
Crawford Racing LLC teamed up with Edgyvette to see what we could get out of their 2016 C7 ZO6 M7 equipped with their PTS single turbo kit and the G1 Pro intake manifold with port injector provisions and their new C7 friendly PI fuel rails, but leaving the rest of the fuel system completely stock. The results were quite surprising!!!
We added our CR-Fueler port injector controller kit, along with a set of 1000cc port injectors to see how far the stock high and low pressure system is good for on full stregth E85 for the LT4 ZO6 and the upcoming LT5 ZR1. That's right, the stock in-tank ZO6 low pressure pump, running 16 fuel injectors, was able to deliver 841 rwhp SAE on E85!!
With careful tuning and datalogging, we were able to determine, the stock HPFP and LT4 injectors were up to the task, the LPFP being where the limitiation is.
We can say that on race gas, 900-1000 rwhp is acheivable on the stock fuel system when adding the CR-Fueler port injection controller. For a guy that wants to run E85 and make 750-800 RWHP on a budget, you could add a boost-a-pump and get by.
Obviously adding a proper LPFP kit, is the desired way to go, and is what this car is getting to break the 1000 rwhp zone, but we wanted to show everyone what the stock fuel system is capable of on full E85 when adding the Crawford Racing CR-Fueler.
Crawford Racing LLC teamed up with Edgyvette to see what we could get out of their 2016 C7 ZO6 M7 equipped with their PTS single turbo kit and the G1 Pro intake manifold with port injector provisions and their new C7 friendly PI fuel rails, but leaving the rest of the fuel system completely stock. The results were quite surprising!!!
We added our CR-Fueler port injector controller kit, along with a set of 1000cc port injectors to see how far the stock high and low pressure system is good for on full stregth E85 for the LT4 ZO6 and the upcoming LT5 ZR1. That's right, the stock in-tank ZO6 low pressure pump, running 16 fuel injectors, was able to deliver 841 rwhp SAE on E85!!
With careful tuning and datalogging, we were able to determine, the stock HPFP and LT4 injectors were up to the task, the LPFP being where the limitiation is.
We can say that on race gas, 900-1000 rwhp is acheivable on the stock fuel system when adding the CR-Fueler port injection controller. For a guy that wants to run E85 and make 750-800 RWHP on a budget, you could add a boost-a-pump and get by.
Obviously adding a proper LPFP kit, is the desired way to go, and is what this car is getting to break the 1000 rwhp zone, but we wanted to show everyone what the stock fuel system is capable of on full E85 when adding the Crawford Racing CR-Fueler.
Last edited by Crawford-Racing.com; 03-13-2018 at 01:05 PM.
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Earl H (03-13-2018)
03-15-2018, 10:48 PM
#4
Pro
Interesting! I’ve been thinking of getting the new Whipple and pullying the heck out of it. I have the Fore Double already but one is for the Nitrous bars. I was wondering if I used it for your fueler kit and see what it’ll make on motor only then get the triple if not satisfied so I could add nitrous again.
What do you think Crawford Peeps??
What do you think Crawford Peeps??
03-16-2018, 09:33 AM
#5
Former Vendor
Thread Starter
Interesting! I’ve been thinking of getting the new Whipple and pullying the heck out of it. I have the Fore Double already but one is for the Nitrous bars. I was wondering if I used it for your fueler kit and see what it’ll make on motor only then get the triple if not satisfied so I could add nitrous again.
What do you think Crawford Peeps??
What do you think Crawford Peeps??
Feel free to hit me up to discuss your plans!
Chris
chris@crawford-racing.com
03-18-2018, 11:45 PM
#7
Former Vendor
Thread Starter
This car is a ZO6 with the LT4 engine. They don't have the same piston issues as the LT1 and can reliably survive north of 1000 rwhp.
Last edited by Crawford-Racing.com; 03-18-2018 at 11:45 PM.
03-20-2018, 08:35 PM
#8
Melting Slicks
Interesting stuff! If one were to replace the stock blower with a 2.3L Maggie and run a pulley, intake, ported TB, and E85, could one get by with your port injector kit, the stock ow pressure fuel pump, and a boost-a-pump for on demand delivery at higher RPMs and throttle input? Which kit of yours would be the most appropriate? Who handles the tuning for the kit - do you help or can you recommend someone in the midwest?
03-21-2018, 02:08 PM
#9
Former Vendor
Thread Starter
Interesting stuff! If one were to replace the stock blower with a 2.3L Maggie and run a pulley, intake, ported TB, and E85, could one get by with your port injector kit, the stock ow pressure fuel pump, and a boost-a-pump for on demand delivery at higher RPMs and throttle input? Which kit of yours would be the most appropriate? Who handles the tuning for the kit - do you help or can you recommend someone in the midwest?
I do recommend my CR-Fueler 2.0 Holley HP kit for a flex fuel application for $2757. It comes with a base tune that will get you really close, and I can help out with remote tuning as well.
03-22-2018, 09:46 AM
#11
Former Vendor
Thread Starter
That dyno graph has the axis scaled a little tight that exaggerates the look of it. Also, there is no electronic boost control on the car at that time, and boost would peak and drop, combined with stock LT4 valvetrain, show a drop in power up top.
This one here is a heat soaked pull with the boost shown.
This one here is a heat soaked pull with the boost shown.
07-07-2018, 07:11 PM
#12
Melting Slicks
That dyno graph has the axis scaled a little tight that exaggerates the look of it. Also, there is no electronic boost control on the car at that time, and boost would peak and drop, combined with stock LT4 valvetrain, show a drop in power up top.
This one here is a heat soaked pull with the boost shown.
This one here is a heat soaked pull with the boost shown.
07-08-2018, 04:42 PM
#14
Le Mans Master
Member Since: Aug 2001
Location: Savannah GA
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Great job Chris! That's just almost hard to believe if I didn't see it on E85 wow! Would love to see some 1/4 mile times with that setup.
I can't wait to get our build moving! This is exciting especially moving up to the F1A-94 (from F1A) and running a WeaponX 750 magna-fuel low side and your Holley 2.0 system! Can't wait to get the numbers out of your tuning! I have already located all my local E85 pumps so I will always be in good shape
.
I can't wait to get our build moving! This is exciting especially moving up to the F1A-94 (from F1A) and running a WeaponX 750 magna-fuel low side and your Holley 2.0 system! Can't wait to get the numbers out of your tuning! I have already located all my local E85 pumps so I will always be in good shape
.
07-08-2018, 07:58 PM
#15
Great job Chris! That's just almost hard to believe if I didn't see it on E85 wow! Would love to see some 1/4 mile times with that setup.
I can't wait to get our build moving! This is exciting especially moving up to the F1A-94 (from F1A) and running a WeaponX 750 magna-fuel low side and your Holley 2.0 system! Can't wait to get the numbers out of your tuning! I have already located all my local E85 pumps so I will always be in good shape.
I can't wait to get our build moving! This is exciting especially moving up to the F1A-94 (from F1A) and running a WeaponX 750 magna-fuel low side and your Holley 2.0 system! Can't wait to get the numbers out of your tuning! I have already located all my local E85 pumps so I will always be in good shape
.
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C5-VERT (07-09-2018)
07-09-2018, 04:10 PM
#16
Le Mans Master
Member Since: Aug 2001
Location: Savannah GA
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Drew you and others told me this, of course, many times over the phone, but to experience, it is such a pleasure. He has taken so much time to help me integrate the WeaponX fuel system, in fact to the point of acquiring and assembling the fittings and PTFE hoses that will 100% bolt up to my factory fuel lines up front and Holley fuel rails. Even ensuring we have equal fuel pressure distribution between rails and using short fittings for clearance issues on my G1Pro LTx intake. The guy knows his stuff and is so helpful my build went from a nervous wreck to absolute fun! He is even going to help me tune my Kooks long tubes with HP Tuners until I can get my F1A-94 / Holley Port System installed. I am 110% satisfied so far just a pleasure to work with him. Appreciate the input also from you Drew.
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wildgoat (07-17-2018)
07-18-2018, 11:48 AM
#19
Advanced
Copied over from the ZO6 sub-forum:
Crawford Racing LLC teamed up with Edgyvette to see what we could get out of their 2016 C7 ZO6 M7 equipped with their PTS single turbo kit and the G1 Pro intake manifold with port injector provisions and their new C7 friendly PI fuel rails, but leaving the rest of the fuel system completely stock. The results were quite surprising!!!
We added our CR-Fueler port injector controller kit, along with a set of 1000cc port injectors to see how far the stock high and low pressure system is good for on full stregth E85 for the LT4 ZO6 and the upcoming LT5 ZR1. That's right, the stock in-tank ZO6 low pressure pump, running 16 fuel injectors, was able to deliver 841 rwhp SAE on E85!!
With careful tuning and datalogging, we were able to determine, the stock HPFP and LT4 injectors were up to the task, the LPFP being where the limitiation is.
We can say that on race gas, 900-1000 rwhp is acheivable on the stock fuel system when adding the CR-Fueler port injection controller. For a guy that wants to run E85 and make 750-800 RWHP on a budget, you could add a boost-a-pump and get by.
Obviously adding a proper LPFP kit, is the desired way to go, and is what this car is getting to break the 1000 rwhp zone, but we wanted to show everyone what the stock fuel system is capable of on full E85 when adding the Crawford Racing CR-Fueler.
Crawford Racing LLC teamed up with Edgyvette to see what we could get out of their 2016 C7 ZO6 M7 equipped with their PTS single turbo kit and the G1 Pro intake manifold with port injector provisions and their new C7 friendly PI fuel rails, but leaving the rest of the fuel system completely stock. The results were quite surprising!!!
We added our CR-Fueler port injector controller kit, along with a set of 1000cc port injectors to see how far the stock high and low pressure system is good for on full stregth E85 for the LT4 ZO6 and the upcoming LT5 ZR1. That's right, the stock in-tank ZO6 low pressure pump, running 16 fuel injectors, was able to deliver 841 rwhp SAE on E85!!
With careful tuning and datalogging, we were able to determine, the stock HPFP and LT4 injectors were up to the task, the LPFP being where the limitiation is.
We can say that on race gas, 900-1000 rwhp is acheivable on the stock fuel system when adding the CR-Fueler port injection controller. For a guy that wants to run E85 and make 750-800 RWHP on a budget, you could add a boost-a-pump and get by.
Obviously adding a proper LPFP kit, is the desired way to go, and is what this car is getting to break the 1000 rwhp zone, but we wanted to show everyone what the stock fuel system is capable of on full E85 when adding the Crawford Racing CR-Fueler.
I've been dreaming up a turbo C7Z with your port injection just like this and am curious as to what numbers/limits could be expected on premium gas alone.
07-18-2018, 02:14 PM
#20
Former Vendor
Thread Starter
Does the CR-Fueler port injection provide substantial benefits when pushing the limits of premium gas only? (no meth or E85)
I've been dreaming up a turbo C7Z with your port injection just like this and am curious as to what numbers/limits could be expected on premium gas alone.
I've been dreaming up a turbo C7Z with your port injection just like this and am curious as to what numbers/limits could be expected on premium gas alone.
Couple of benefits of the port injection, it allows more headroom to the fuel system, it also helps to keep the intake ports and intake valves a lot cleaner by allowing that port fuel to wash the intake tract, and keeps that nasty buildup away. Something that has plagued the German and Italian Direct Injection vehicles for over a decade, and an issue we will start see popping up with the GM DI vehicles.
As far as how far you want to go on premium pump gas, is up to you and your tuner. Premium pump gas does have it's limitations of how much boost, timing and ultimately power it will tolerate.
I would say 800+ rwhp is obtainable in the hands of a good tuner on pump gas.
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wildgoat (07-18-2018)