Saab 2.8t Diy first time install.

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aerofan
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Saab 2.8t Diy first time install.

#1 Post by aerofan » Sat Jun 21, 2014 9:32 pm

So ive decided to convert my Saab to Lpg. Never done it before but im a qualified mechanic, former master tech and for the last 9 years ive been a mechanical engineer so hopefully i should have enough skills!!

Im fitting a Stag 300-6, KME turbo gold, hana blue injectors and a 72l torodial tank.

Heres the progress so far:
Still to do is tank to reducer pipe, insulation on the pipework, wiring and leak checking then hopefully a bit of calibration.

aerofan
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Re: Saab 2.8t Diy first time install.

#2 Post by aerofan » Sat Jun 21, 2014 9:44 pm

Image

Image

57jam89
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Re: Saab 2.8t Diy first time install.

#3 Post by 57jam89 » Mon Jul 28, 2014 7:27 am

It looks good, well done.
I do like where you fitted the filler, I can't stand ones cut into the rear wings.

Keep the pictures coming.
Nissan Skyline 350gt Lpg fitted by Lpgc.

aerofan
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Re: Saab 2.8t Diy first time install.

#4 Post by aerofan » Mon Jul 28, 2014 4:12 pm

Forgot to update this!!
Ive added some fibreglass braiding thats impregnated with silicone to protect the lpg lines from heat and chaffing.
(Nobody likes chaffing now do they!!)

Image

Whag i havent shown is the sleeving ive put on the faro pipe. Where it comes up onto the firewall and over the rear suspension into the tank is sleeved for the same reasons.
Last edited by aerofan on Mon Jul 28, 2014 4:25 pm, edited 1 time in total.

aerofan
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Re: Saab 2.8t Diy first time install.

#5 Post by aerofan » Mon Jul 28, 2014 4:17 pm

Heres where the fuel return feed is taken from. Ive utilised the test port which is a an-4 shcrader valve, into which the valve core has been removed and a grub screw placed with a 1mm hole and feed back to fuel tank. The 12v solenoid petrol valve is feed from the gas solenoids so it goes "closed loop" on petrol. So far no fault codes for pressure regulataion and it only dips 20kpag when the switchover occurs so not enough to cause a code to pop up.

Image

aerofan
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Re: Saab 2.8t Diy first time install.

#6 Post by aerofan » Mon Jul 28, 2014 4:23 pm

Heres where the gauge is mounted, doesnt look to bad apart from the typical worn climate buttons :(

Image

Basic map, left like this at the moment until it all settles in then ill revisit it to see how it looks. (Probably 500 miles ish)

Image

aerofan
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Re: Saab 2.8t Diy first time install.

#7 Post by aerofan » Mon Jul 28, 2014 4:30 pm

Car has now covered 250ish miles (all town) and is averaging 17-18mpg (typically 19mpg on petrol) so not too bad a drop and ive already paid pack £30 of the cost, only £490 to go!!
Im rather impressed if i do say so myself though, switchover is seemless and there really isnt any loss in power.

57jam89
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Re: Saab 2.8t Diy first time install.

#8 Post by 57jam89 » Mon Jul 28, 2014 10:14 pm

Looks a good install, well done.
And I thought there was no room under the bonnet on my MG ZT until I saw yours.
Nissan Skyline 350gt Lpg fitted by Lpgc.

aerofan
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Re: Saab 2.8t Diy first time install.

#9 Post by aerofan » Mon Jul 28, 2014 10:56 pm

Thanks, yeah its a little tight in there alright.
Next plan is a remap, posssibly a jzw one from the usa that will take it to 320bhp and 520nm!! Technically the reducer says it can deal with 360bhp but i dont like pushing components to their absolite limits so may have the map scaled back to 300ish.

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