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Re: VIS Hybrid
[Re: t0m0]
#710967
19/11/2008 23:55
19/11/2008 23:55
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paulr20vt
Unregistered
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paulr20vt
Unregistered
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get a gt28rs 0.64 on it... would like to see the results then... Well done for trying it, I will say that the ecu is a pig, well worth seeing Perfect touch aswell. NOT ANGEL TUNING AS I READ ELSEWHERE, they are fine for disel boxs but not this kind of thing
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Re: VIS Hybrid
[Re: alex1982]
#719562
02/12/2008 23:23
02/12/2008 23:23
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pfoe
Unregistered
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pfoe
Unregistered
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Fantastic work Joe, nice to see people are still up for doing something new with a coupe.
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Re: VIS Hybrid
[Re: ]
#719582
02/12/2008 23:47
02/12/2008 23:47
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Joined: Dec 2005
Posts: 33,568 Berlin
barnacle
Club Member 18 - ex-Minister without Portfolio
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Club Member 18 - ex-Minister without Portfolio
Forum Demigod
Joined: Dec 2005
Posts: 33,568
Berlin
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I'd love to guys, but the documentation is so confusing and so different from the others that it's really not feasible.
Last edited by barnacle; 02/12/2008 23:51. Reason: It's also in Italian!
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Re: VIS Hybrid
[Re: barnacle]
#719735
03/12/2008 10:28
03/12/2008 10:28
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Joined: Feb 2006
Posts: 5,390 Essex
Trappy
Forum is my life
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Forum is my life
Joined: Feb 2006
Posts: 5,390
Essex
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So this could possibly allow us fccukers to use bigger turbos that have the same lag and boost threshold as a smaller unit? Sounds very interesting How about a ball park fitting for the whole lot if bought from a scrappy? Excluding mapping, would £600 cover it?
F****** b****** thing...
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Re: VIS Hybrid
[Re: barnacle]
#720010
03/12/2008 15:53
03/12/2008 15:53
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Joined: Oct 2007
Posts: 11,159 ,
samsite999
I AM a Coop
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I AM a Coop
Joined: Oct 2007
Posts: 11,159
,
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Re: VIS Hybrid
[Re: Countrycruising]
#726856
12/12/2008 20:04
12/12/2008 20:04
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Joined: Dec 2005
Posts: 9,706 Gone
Jimbo
Je suis un Coupé
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Je suis un Coupé
Joined: Dec 2005
Posts: 9,706
Gone
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Only just read this thread well done Joe Its great to read something totally different and never done before. Looking forward to reading the results after its mapping. I bet you'll be getting a few more orders for this conversion if it works well. With it being a variable length inlet, I'm guessing its got lots more torque at low revs than a 20vt but then has the beauty of the turbo at higher revs so your getting the best of both worlds Does it make it more economical ?
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Re: VIS Hybrid
[Re: knight7660]
#726924
12/12/2008 22:12
12/12/2008 22:12
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Joined: Sep 2006
Posts: 17,227 FCSS 01684 593187
Countrycruising
OP
Club Rep Europe, member 914
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OP
Club Rep Europe, member 914
Forum veteran
Joined: Sep 2006
Posts: 17,227
FCSS 01684 593187
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Unsure yet Jim as it's still in the set up stages but it's getting there UPDATE please!!!!!!!!!!!! Ok, Ok I'll update the thread Right less then a week later and I've got some good news and some bad Well the good news is the car is now mapped and its had it's first run on the rollers The bad news is, well I'll get to that in a minute The good news is the mapping according to Ogri was pretty uneventful really, it only needed tweaking and has dealt with the additions of the turbo very well, I'm sure there was more to it then that but his laid back attitude about the job just reassures me that I took it to the right people to start with. So at the moment it's running 185 bhp at a max of 9psi boost, the first issue to stop any higher boosting was the plastic two piece plenum, any higher and Ogri said it would pop the seals as it has done in the past on the Alfa's. The second issue has been the AFM, at 9psi it's off the scale and causing the fuelling to run Rich, I and other believed it would of been to lean so this has come as a surprise really. So the bad news is the AFM mainly and the second is the plastic VIS plenum But !!! I've been chatting to a couple of people and have had another chat with Ogri, there's a few things to try next week so it's far from over yet. Firstly courtesy of Tim I believe the easiest solution with the plenum is to get it plastic welded, I'm only looking to run this engine at standard boost so I believe with this mod done it'll easily take the pressure without popping the seals, the second problem with the AFM could be solved by improving the fuelling we believe. At present I've a standard 20vt fuel rail fitted but with only a feed and no return, the feeling here is without the return line in situ the pressure from the fuel pump is causing the injectors to spike, this is effecting the fuelling which in turn may also count for why the AFM is being maxing out, this make complete sense so the first steps are to install a return line to the fuel rail and give it another run. If there's no change then Ogri has suggested moving the AFM to a new position after the inter cooler, the Skyline boys do this with their 1000bhp drifters but it's fine tuning it in the correct position so it doesn't pick up a false reading from the plenum. If that all fails and the Air flow metering doesn't improve I'm going to have to look at splice a 20vt AFM loom into the VIS ECU, unsure where to even start with this at the moment but it's either that or fit a complete 20vt loom which defeats the whole issue of the conversion, but we'll see. It's not over till the spanner draw rattles
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Re: VIS Hybrid
[Re: samsite999]
#726955
12/12/2008 23:09
12/12/2008 23:09
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Joined: Dec 2005
Posts: 9,706 Gone
Jimbo
Je suis un Coupé
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Je suis un Coupé
Joined: Dec 2005
Posts: 9,706
Gone
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Without the fuel return you'll be getting pump pressure through the injectors so I can see why it would be running rich. I don't know much about the VIS fuel control but Im guessing its a different AFM ? Would the VIS ECU cope with just plugging in the 20VT AFM or is it a a totally different sensor ? Sounds bloody good so far though
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