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Originally Posted by ezrizer
(Post 4650072)
I spoke with K&N today and their ECi doesn't seem practical for my application. As others have pointed out at $800 you're well on your way to fuel injection so why not keep going. I thought with ECI you'd tune your carb lean and let the ECI trim the fuel curve as needed to maintain AFR but that's not what K&N said. In fact they didn't recommend having it active or in service continuously, rather occasional only when the 02 sensor detected a lean condition. It doesn't have an IAC so it's not going to be very helpful if RPM is to low in gear (my problem). I like what CDShack said and I'm inclined to get my carbs calibrated accordingly and i think I'll be fine. I've had a number of carbureted that ran fine, Just not one with this much cam and this much prop but as I said I'm hopeful with the right calibration things will work out.
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Originally Posted by Swamplizard
(Post 4650084)
I'm taking it in steps:
Adding bigger oil coolers and heat exchangers Fresh fuel pumps (mechanical) and 1/2 hoses all the way Adding Weiand 177 blowers with pre-configured Holley carbs Adding O2 sensors to Gils and AFR guages so I can see where Air to fuel ratios are on carbs..... Then, eventually, going with the Snipers We will see how it works out for big cruiser. |
I am freshening my 454's with 177 blowers, they only had 750 carbs on them when I bought the boat so I needed to buy something, I really wanted to do 1050's but a good friend talked me into injection. I am going to try the Sniper system. Should be on the dyno in the next couple of weeks. I will post results
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Originally Posted by resurrected
(Post 4650355)
I am freshening my 454's with 177 blowers, they only had 750 carbs on them when I bought the boat so I needed to buy something, I really wanted to do 1050's but a good friend talked me into injection. I am going to try the Sniper system. Should be on the dyno in the next couple of weeks. I will post results
As posted above - I have a friend who went Sniper on marine application - might be 540s with AFRs but he loves it and he runs the boat a ton every year (hundreds of hours) - long trips NW coast. After I get mine running - going Sniper on top of my Weiand 177s baby blowers 454 Mags. Post how your dyno goes or PM me please. Cheers and good weekend! |
The heads are 188s
Hoping to be dynoing this week. If the sniper is not where we are hoping and there is time I'll try a 1000 cfm carb I'll post results as soon as I can. I'm really looking forward to seeing how it runs |
Originally Posted by resurrected
(Post 4652078)
The heads are 188s
Hoping to be dynoing this week. If the sniper is not where we are hoping and there is time I'll try a 1000 cfm carb I'll post results as soon as I can. I'm really looking forward to seeing how it runs |
https://cimg1.ibsrv.net/gimg/www.off...3f6ef65d13.jpg
515 with AFR 305 V2, 731 cam, Sniper, should be on the water in 2 weeks......https://cimg0.ibsrv.net/gimg/www.off...07a332b542.jpg |
575-600 Hp? |
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Originally Posted by Texascuda
(Post 4652196)
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