Imagine Auto Fuel Head Mod
10-10-2005, 02:01 PM
#46
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PT -- that's pretty good. You must leave a trail of gas behind car when mid range enrichment kicks in. you dyno your car to see what power you're doing?
10-10-2005, 04:21 PM
#47
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Originaly Posted by JoeMagPT -- that's pretty good. You must leave a trail of gas behind car when mid range enrichment kicks in.
10-10-2005, 05:30 PM
#48
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Originally Posted by jwl
..and a ball of fire between shifts
I haven't really dyno the car as the last time I went (before I had the LM-1) the shop is convinced that I was running lean so we abort the session. I was making ~330 rwhp @ 5500 rpm (going up linearly) when we abort & that was at .85 bar boost. For reference, I know I can stay with the GT-3's in the straight @ Tremblant assuming we both come out of the corner at the same speed.
10-10-2005, 09:12 PM
#51
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I am running about 430 HP in my 89 930. The only problem I have with the Imagine Fuel Head is that you have to let it idle for about 2 minutes before driving away. Or else it stumbles and stutters as soon as you try and accelerate. After 2 minutes it runs perfect. I get up to 15 mpg on the open road, and around 12 in town. But if you worry about fuel mileage a 930 isn't for you. I don't get any pinging, nor do I get any fuel rich odor. It just works.....and if you are going to be doing any mods to your 930, you need an Imagine Fuel Head.
10-10-2005, 09:31 PM
#53
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The fuel head mod is the last mod I made on my car. I have the K27 with an Electronic Boost Control set 1.1 bar, full B&B Headers and muffler, SC Cams, Stepehn at Imagine suggested his fuel head instead of the Andial unit. I was getting some pinging now and then, but needed no warm up to drive away at normal speeds. I put the fuel head on, instant power increase with no pinging, however that is when I got the need to warm up because of the stumbling and stuttering.
10-10-2005, 09:35 PM
#54
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Questions, questions, questions:
So the bottleneck in fuel delivery is only at the distributor?
Is there any advantage in changing out the injectors with the change in the fuel head?
Is there ever an issue with getting uniform flow distribution among the six cylinders?
So the bottleneck in fuel delivery is only at the distributor?
Is there any advantage in changing out the injectors with the change in the fuel head?
Is there ever an issue with getting uniform flow distribution among the six cylinders?
10-10-2005, 09:40 PM
#55
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I can only guess that the problem is that when the car is stone cold it takes a while for the fuel head to fill up with fuel. Nothing else needs to be done to the fuel system, everything works with the stock system, and it works great!
10-11-2005, 06:56 PM
#58
Rennlist Lifetime Member
Rennsport does no mod to the internals of the head. They raise the pressure and clear the arm so the pic goes down farther.
The 3.6 head is the same. It is the frequency valve circuit that enriches.
The 3.6 head is the same. It is the frequency valve circuit that enriches.
10-11-2005, 07:43 PM
#60
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Originally Posted by 930LDR
Kind of along these same lines... what negative effects can arise from running rich (or should I say too rich)?
It will reduce torque/power