Djet and E10 gas Options

[914rat]

There have been some comments lately about the effects of ethanol on our cars and in particular carbbed type 4 engines.Zach is switching from carbs to modern fuel injection due to the effects of the E10 on his driveability and I had a problem spring before last where my valves gummed up with a sticky residue and dropped a seat.

My question is do the guys that are running a 9550 cam and Djet notice any effects from the E10 fuel?What is the driveability as opposed to a carbbed engine?

[VaccaRabite]

From what I have heard and seen, the FI guys have little to no problem unless they let the car sit for a long time. The higher pressure FI uses will blow off the gum on the injectors and the alcohol will help clean them.

Zach

[Cap'n Krusty]

There have been some comments lately about the effects of ethanol on our cars and in particular carbbed type 4 engines.Zach is switching from carbs to modern fuel injection due to the effects of the E10 on his driveability and I had a problem spring before last where my valves gummed up with a sticky residue and dropped a seat.

My question is do the guys that are running a 9550 cam and Djet notice any effects from the E10 fuel?What is the driveability as opposed to a carbbed engine?

I seriously doubt "my valves gummed up with a sticky residue and dropped a seat" is a rational statement WRT your engine dropping a seat. Heat makes seats drop. Timing, compression, too low octane, cracks, lean mixture, and a number of more obscure reasons contribute to heat. Oh, and headwork done by someone unfamiliar with T4 heads.

The Cap'n

[914_teener]

There have been some comments lately about the effects of ethanol on our cars and in particular carbbed type 4 engines.Zach is switching from carbs to modern fuel injection due to the effects of the E10 on his driveability and I had a problem spring before last where my valves gummed up with a sticky residue and dropped a seat.

My question is do the guys that are running a 9550 cam and Djet notice any effects from the E10 fuel?What is the driveability as opposed to a carbbed engine?

Nope and.... don't know about drivability because I run D-jet and not carbs.

There was some discussion about the CARB rated hoses for the fuel line...which has nothing to do with carburators. The CARB rated hose has a viton liner on the inside.

There are a couple of threads on it.

[76-914]

I'm running a 9550 w/ Djet on SoCal gas, no problem. Your concern will be fuel leaks on pressure lines that aren't changed out regularly and are weakened by ethanol. Or you could run Goodyear 30R9 hose but it isn't sold in metric sizes.

[Bleyseng]

I'm running a 9550 w/ Djet on SoCal gas, no problem. Your concern will be fuel leaks on pressure lines that aren't changed out regularly and are weakened by ethanol. Or you could run Goodyear 30R9 hose but it isn't sold in metric sizes.

Yes, this is the biggest problem with the ethanol- it ruins the fuel lines. Switch to the 30R9 and it helps...
Always check your fuel lines!

[ape914]

The new fuels run hotter becuase they have extra oxygen in them from the alchohol, which can cause lean running. This added heat can lead to valve failure if the head gets too hot from running lean.

The D-jet will not automtically compensate for this. An injection system that uses an oxygen sensor will compensate, but the poor old D-jet cant.

So yes the new fuels can make your motor run too hot. maybe not a probelm for all 914's but certainly can be for some.

[sean_v8_914]

10jreen runs a 2056 djet w 9550 on pump cheveron 91 . we have been flogging this engine for over 7 years now. its been in 3 cars. 10jreen sees double duty with 2 drivers at AX, TT, DE
fuel lines get hard every 2-3 years

[914rat]

There have been some comments lately about the effects of ethanol on our cars and in particular carbbed type 4 engines.Zach is switching from carbs to modern fuel injection due to the effects of the E10 on his driveability and I had a problem spring before last where my valves gummed up with a sticky residue and dropped a seat.

My question is do the guys that are running a 9550 cam and Djet notice any effects from the E10 fuel?What is the driveability as opposed to a carbbed engine?

I seriously doubt "my valves gummed up with a sticky residue and dropped a seat" is a rational statement WRT your engine dropping a seat. Heat makes seats drop. Timing, compression, too low octane, cracks, lean mixture, and a number of more obscure reasons contribute to heat. Oh, and headwork done by someone unfamiliar with T4 heads.

The Cap'n

Let me explain.I let my car sit over the winter without without fuel stablizer.A valve stuck due to the decompisition of the fuel and broke a rocker arm and damaged the seat.The machine shop told me they have seen many cases on flat tapet carborated engines since E10 became the standard fuel.They had me feel behind the valve and it was sticky like maple syrup.They said the E10 breaking down was the reason for the sticky substance and the stuck valve that resulted in a broken rocker and damaged seat.Sorry I wasn't explicit in my earlier post.I have also had to clean my idle jets after only sitting for a few weeks something that was not an issue prior to me running E10 .I have drained my fuel system twice since the incident and still have to clean my jets if the car sits for a couple of weeks.My factory temp guage has never indicated a overheating issue.

[charliew]

I find it very hard to understand how a rocker arm can break before a pushrod bends even harder to believe is a valve can be glued in strong enough to break a rockerarm but maybe so. 20 years from now it will be common knowledge how the public was ripped off from the corn industry and the goverment on pushing corn for a fuel instead of using it for food.

And my son uses e85 in his suby and I still hate the thought of using corn for fuel.

[VaccaRabite]

20 years from now it won't be corn.

Algae and seaweed have way more caloric energy then corn, its cheaper to produce them in larger quantity. Algae can be vat grown in a relatively small space and seaweed and also be farmed. Sugarcane and switchgrass also have advantages over corn.

The only thing keeping corn in US ethanol is the govt subsidy. If the market were to decide on its own - and I think it will sooner then later - corn will move out of the way for a cheaper, more calorie packed option.

Zach

[914_teener]

20 years from now it won't be corn.

Algae and seaweed have way more caloric energy then corn, its cheaper to produce them in larger quantity. Algae can be vat grown in a relatively small space and seaweed and also be farmed. Sugarcane and switchgrass also have advantages over corn.

The only thing keeping corn in US ethanol is the govt subsidy. If the market were to decide on its own - and I think it will sooner then later - corn will move out of the way for a cheaper, more calorie packed option.

Zach

.....E10 seems to run fine in my car....I have the viton lined hoses.. replaced them a couple of years ago.

NO cracks or leaks....and no corn kernels either (IMG:style_emoticons/default/shades.gif)

[JawjaPorsche]

Thank God there a station two miles away that offers 100% gas. Today it was 3.56.