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Author Topic: What's the worst fuel milage you can get??  (Read 29977 times)

Reply #15November 21, 2009, 02:57:15 am

rabbitman

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Re: What's the worst fuel milage you can get??
« Reply #15 on: November 21, 2009, 02:57:15 am »
I'm down to 35mpg after compensating for the slipping odo. :(

I think it's due to the improperly functioning vnt-15 causing high backpressure for how much benefit it gives. arrrrrrg >:(
'82 Rabbit, I put on a euro vnt-15, 2.25" DP, 2.5" exhaust, the result.....it whistled.

I removed the turbo, made a toilet bowl 2.5" DP, the result....it was deafening. Now it has a homemade muffler up front and a thrush in the rear, the result.....less loud.
Watch: AGENDA, GRINDING AMERICA DOWN

Reply #16November 21, 2009, 02:38:33 pm

Rabbit on Roids

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Re: What's the worst fuel milage you can get??
« Reply #16 on: November 21, 2009, 02:38:33 pm »
if you open your vaines up all the way, like ive been saying since you put it on there, you would have almost no back pressure. VNT turbos flow better than normal turbos.

Reply #17November 21, 2009, 04:20:28 pm

rabbitman

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Re: What's the worst fuel milage you can get??
« Reply #17 on: November 21, 2009, 04:20:28 pm »
if you open your vaines up all the way, like ive been saying since you put it on there, you would have almost no back pressure. VNT turbos flow better than normal turbos.

That's how I had it for the first month or two, I got 4-5psi boost and high egts and LOTS of smoke. It also had less power than when it was NA :(.
'82 Rabbit, I put on a euro vnt-15, 2.25" DP, 2.5" exhaust, the result.....it whistled.

I removed the turbo, made a toilet bowl 2.5" DP, the result....it was deafening. Now it has a homemade muffler up front and a thrush in the rear, the result.....less loud.
Watch: AGENDA, GRINDING AMERICA DOWN

Reply #18November 21, 2009, 05:31:11 pm

8v-of-fury

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Re: What's the worst fuel milage you can get??
« Reply #18 on: November 21, 2009, 05:31:11 pm »
if you open your vaines up all the way, like ive been saying since you put it on there, you would have almost no back pressure. VNT turbos flow better than normal turbos.

That's how I had it for the first month or two, I got 4-5psi boost and high egts and LOTS of smoke. It also had less power than when it was NA :(.

Open them back up, and don't drive with your foot to the floor all the time. lol if you were making 5 psi how was it less powerful?

Reply #19November 21, 2009, 08:56:44 pm

rabbitman

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Re: What's the worst fuel milage you can get??
« Reply #19 on: November 21, 2009, 08:56:44 pm »
Open them back up, and don't drive with your foot to the floor all the time. lol if you were making 5 psi how was it less powerful?

I have no idea, maybe it was in my head since I thought it would've had lots more boost/power ::).

That 5psi was only when it was floored so I could do it for a few seconds and the egt's would hit 1250F easy and sometimes 1300+F :o. I could drive with the egt's at 900F with less than 1psi and it was very slow, like cruising at 60mph and no power for hills. >:(
'82 Rabbit, I put on a euro vnt-15, 2.25" DP, 2.5" exhaust, the result.....it whistled.

I removed the turbo, made a toilet bowl 2.5" DP, the result....it was deafening. Now it has a homemade muffler up front and a thrush in the rear, the result.....less loud.
Watch: AGENDA, GRINDING AMERICA DOWN

Reply #20November 22, 2009, 11:35:29 am

Rabbit on Roids

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Re: What's the worst fuel milage you can get??
« Reply #20 on: November 22, 2009, 11:35:29 am »
your timing sounds super advanced or something. didnt you say it was spot on?

ive got my pump turned up way far, and it pours blackness. i can hold my car to the floor and not get the engine too hot. i dont have an EGT gauge, but every time my head comes off, the pistons and injectors look good every time.

Reply #21November 22, 2009, 11:37:06 am

Rabbit on Roids

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Re: What's the worst fuel milage you can get??
« Reply #21 on: November 22, 2009, 11:37:06 am »
and another thing, when you open the vaines, with the turbo on the car, are you pushing the lever towards the ground, or towards the hood? cause towards the hood is open. and towards the ground makes boost at idle...

Reply #22November 22, 2009, 02:35:50 pm

rabbitman

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Re: What's the worst fuel milage you can get??
« Reply #22 on: November 22, 2009, 02:35:50 pm »
and another thing, when you open the vaines, with the turbo on the car, are you pushing the lever towards the ground, or towards the hood? cause towards the hood is open. and towards the ground makes boost at idle...

My turbo is euro so it's backwards, the lever is directly between the head and turbo rather than by the firewall.

I hooked a rod onto the lever so I could easily operate it with the engine running and up=boost @ idle, actually I was able to rev it in neutral and get 10psi......that was LOUD under the hood!!
I've put it on hold for now, I just got too sick of re re relooking everything over :'(
'82 Rabbit, I put on a euro vnt-15, 2.25" DP, 2.5" exhaust, the result.....it whistled.

I removed the turbo, made a toilet bowl 2.5" DP, the result....it was deafening. Now it has a homemade muffler up front and a thrush in the rear, the result.....less loud.
Watch: AGENDA, GRINDING AMERICA DOWN

Reply #23November 26, 2009, 12:01:24 pm

ThorAlex

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Re: What's the worst fuel milage you can get??
« Reply #23 on: November 26, 2009, 12:01:24 pm »
89 vanagon 1.6td: About 24 mpg on the first tank after turning the pump up a little, about 1/4 was a long trip, rest was hard city driving. Got about 29mpg mixed driving before. Oh, and my tank leaks out a few liters after each fill up so it's probably a little better.

Reply #24November 29, 2009, 07:32:54 am

gldgti

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Re: What's the worst fuel milage you can get??
« Reply #24 on: November 29, 2009, 07:32:54 am »
ive got my pump turned up way far, and it pours blackness. i can hold my car to the floor and not get the engine too hot. i dont have an EGT gauge, but every time my head comes off, the pistons and injectors look good every time.

just curious, but just how often does the head come off? and why?
'77 Golf LS 4 door twincharger project
'91 Golf Cabrio 1.9TD
'94 Golf TD - AAZ, 2.5" Mandrel DP and exhaust, Merc T3 1.6TD boost pin, FMIC, Koni suspension, VR6 Brakes, VR6 Seats, VR6 sway-bars - sadly missed
'07 SKODA Octavia 1.9 TDI PD - Remapped ECU

Reply #25December 06, 2009, 03:52:08 pm

Rabbit on Roids

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Re: What's the worst fuel milage you can get??
« Reply #25 on: December 06, 2009, 03:52:08 pm »
ive got my pump turned up way far, and it pours blackness. i can hold my car to the floor and not get the engine too hot. i dont have an EGT gauge, but every time my head comes off, the pistons and injectors look good every time.

just curious, but just how often does the head come off? and why?

the first time the head came off, i had to replace the headgasket, the second time i had to replace the block, and the 3rd time was to port and polish. mind you, thats in about 3 years time.

Reply #26December 16, 2009, 11:28:49 am

ashleyroe

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Re: What's the worst fuel milage you can get??
« Reply #26 on: December 16, 2009, 11:28:49 am »
i was getting like 5 mpg when i was driving with the pump 180 out  ;D  ::) :-[

Reply #27December 16, 2009, 04:09:14 pm

Rabbit on Roids

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Re: What's the worst fuel milage you can get??
« Reply #27 on: December 16, 2009, 04:09:14 pm »
it ran timed 180 out? i thought that was impossible. like the pump and cam were timed that far off and it still ran? wow.

Reply #28December 16, 2009, 05:23:11 pm

ashleyroe

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Re: What's the worst fuel milage you can get??
« Reply #28 on: December 16, 2009, 05:23:11 pm »
it ran timed 180 out? i thought that was impossible. like the pump and cam were timed that far off and it still ran? wow.

unknowing it was 180 out the vw tech at my boyfriends old dealership actually moved all the screws enough that it ran.

the car wouldnt go past 55mph and smoked like no tomorrow (fuel dumping out the back).

but yes it did run.

i have actually have video of before and after the giles pump.

Reply #29December 17, 2009, 09:01:19 am

Nignick09

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Whats the worst fuel milage you can get
« Reply #29 on: December 17, 2009, 09:01:19 am »
Ok what if you are on a boat/shore with rods but not actually in the water they pull up and ask for your licence and dont have one, considering you dont have your line in the water can they still fine you?

 

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