 Fuel accumulator?, Trouble at tight corners |
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| worn |
 Aug 10 2014, 05:16 PM
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Winner of the Utah Twisted Joint Award  Group: Members Posts: 3,492 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest 
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Today at an autocross meet the car was doing great. EXCEPT that after a sharp curve there was a delay in getting power, with he engine running lean. We were running a half tank or less to save on weight and it was suggested that the problem was fuel starvation after a sharp turn.
Having looked inside the tank it don't seem so awfully likely, but it does fit the symptoms. Driving back on country roads I went across several 90 degree bends, and the same durn thing happened! (IMG:style_emoticons/default/hissyfit.gif) Any thoughts? |
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| stugray |
Aug 18 2014, 06:31 PM
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Advanced Member Group: Members Posts: 3,825 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
I have seen the fuel slosh "chambers" that use trap doors to keep the last bit of fuel in a smaller area for the pickup.
The other way to do it is to use a low pressure in sump fuel pump to pump up to a reservoir (can be in tank or out) that dumps back to the tank (or fuel cell) with an overflow. Then a HP fuel pumps from there. That way the HP pump wont ever get starved until the very end. Using the LPFP in the tank it is less susceptible to damage from being run dry frequently. |
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Posts in this topic
worn Fuel accumulator? Aug 10 2014, 05:16 PM
Mike Bellis Carbs or FI? Aug 10 2014, 06:04 PM
worn
Carbs or FI?
A 2056 running stock 2.0 FI. When ... Aug 11 2014, 06:28 PM sixnotfour oops Aug 10 2014, 07:10 PM Mike Bellis I would start with a new higher volume FI pump. A ... Aug 11 2014, 06:35 PM SirAndy Do you have this problem with a full tank?
:agree... Aug 11 2014, 08:34 PM worn
Do you have this problem with a full tank?
:agre... Aug 15 2014, 08:11 PM JamesM The tank already has some baffles in it, adding mo... Aug 15 2014, 08:57 PM Mike Bellis I'm wondering if your supply and return are re... Aug 15 2014, 08:47 PM brant We never had problems with stock tanks. I think so... Aug 16 2014, 07:33 AM Racer Chris When I road raced my car with a d-Jet 1.7L I ran a... Aug 16 2014, 09:57 AM tadink I've got exactly the same issue but ONLY on ha... Aug 16 2014, 10:45 AM d914 expensive but here is one to use almost out of the... Aug 16 2014, 02:06 PM tadink
expensive but here is one to use almost out of th... Aug 18 2014, 05:49 PM Racer Chris
where do you put it? Upstream or downstream fro... Aug 18 2014, 06:32 PM d914 low pressure from the gas tank.. high pressure to ... Aug 18 2014, 06:12 PM tadink Thanks all for the input - but I don't think w... Aug 20 2014, 03:13 PM |
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