DIY Modification to Improve Performance and Fuel Economy of AJ16 and AJ6 Engines
#161
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Andy,
my 3.2 is much happier with your bracket, now on its 3rd tank of 98RON -
good acceleration, running smoothly. It needs another 0-60mph timed run on the iphone 'Dynolicious' app.
The car is currently in getting a new water hose (old one slow leak and all soft and squishy), and a new set of front suspension bushes +/- ball joints to sort out 'wander'. Next move may be a new set of 225/65 x16 tyres - winter is coming Down Here
my 3.2 is much happier with your bracket, now on its 3rd tank of 98RON -
good acceleration, running smoothly. It needs another 0-60mph timed run on the iphone 'Dynolicious' app.
The car is currently in getting a new water hose (old one slow leak and all soft and squishy), and a new set of front suspension bushes +/- ball joints to sort out 'wander'. Next move may be a new set of 225/65 x16 tyres - winter is coming Down Here
#162
#163
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I've just sold the last of my current stock of these brackets, taking the total to 230. If anyone would like to order one from the next batch, then please contact me by email andystodart@metronet.co.uk
#164
![Default](/forum/images/icons/icon1.gif)
I've just sold the last of my current stock of these brackets, taking the total to 230. If anyone would like to order one from the next batch, then please contact me by email andystodart@metronet.co.uk
#166
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Dear All,
I could do with just a few more expressions of interest to ssutify making another batch of these brackets. If anyone else is interested then please let me know anydstodart@metronet.co.uk
I could do with just a few more expressions of interest to ssutify making another batch of these brackets. If anyone else is interested then please let me know anydstodart@metronet.co.uk
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XJ-Executive (09-10-2016)
#168
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with the Andy 5' advance bracket, 98 RON fuel with about 2 mL/L TC-W3 outboard oil in it, I had a long run today.
Very early start, no traffic, did 120 km in the first hour with bursts up to the ton (my best average ever in NZ - hard to average more than 90 km in an hour with our roads), and got 21 mpg (Imperial gallons - 4 1/2 litres).
On return run in steady traffic with a few bursts, doing about 90-120 km/h, I got 27mpg over 110 miles...
I have no comparisons 'before bracket' for a long run.
the 3.2 is a superb high-speed cruiser, but doesn't have the immediate low-down torque for overtaking. However it feels more than 3.2 litres/215 bhp. The gearbox is a different animal after 3 part-changes of synthetic ATF this month - I can't recommend this treatment highly enough. Also replaced driveshaft hanger-bearing which was worn out and causing vibrations above 60km/h, and probably absorbing some horsepower
I have just repeated 0-60mph times again with 'Dynolicious' (iPhone app)-
two runs, 8.7 and 9.1 secs with the above maintenance plus 5' bracket. A good improvement on pre-bracket runs of 9.9sec
Very early start, no traffic, did 120 km in the first hour with bursts up to the ton (my best average ever in NZ - hard to average more than 90 km in an hour with our roads), and got 21 mpg (Imperial gallons - 4 1/2 litres).
On return run in steady traffic with a few bursts, doing about 90-120 km/h, I got 27mpg over 110 miles...
I have no comparisons 'before bracket' for a long run.
the 3.2 is a superb high-speed cruiser, but doesn't have the immediate low-down torque for overtaking. However it feels more than 3.2 litres/215 bhp. The gearbox is a different animal after 3 part-changes of synthetic ATF this month - I can't recommend this treatment highly enough. Also replaced driveshaft hanger-bearing which was worn out and causing vibrations above 60km/h, and probably absorbing some horsepower
I have just repeated 0-60mph times again with 'Dynolicious' (iPhone app)-
two runs, 8.7 and 9.1 secs with the above maintenance plus 5' bracket. A good improvement on pre-bracket runs of 9.9sec
Last edited by AL NZ; 04-27-2013 at 05:41 PM.
#169
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I am now making another batch of these brackets, so if anyone would like one, then please get in touch with me directly. andystodart@metronet.co.uk
#170
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#178
![Cool](https://www.jaguarforums.com/forum/images/icons/icon6.gif)
My project is a 1994 xj40, 4.0 litre, Im in California where emissions are stringent to say the least. I installed the bracket about 6 months ago. I was getting 16 miles per gallon average before bracket after bracket up to 19 m.p.g. This bracket with a couple of little modifications such as removing stock air box replacing with K&N Filter (cone) modification to pre cats elimination of cats, replacing muflers with magna flow muffler and eliminating silencers. Car now runs 74 m.p.h. at 3200 r.p.m. at 27 m.p.g. and around town averages 22 m.p.g., remember to keep throttle body clean vacuum lines sealed, EGR clean, stock spark plugs and the rear end lubed end result 0-60 m.p.h. 7.9 seconds. PEACE
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Schoe (07-07-2013)
#179
#180
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The oxygen sesnors will work to control air:fuel ratio correctly, even if there are no catalysts fitted. However, the car is unlikely to pass any in-use emissions requirements.
BTW, I have just taken delivery of my latest batch of brackets, so I have them in stock for anyone who wants one.
BTW, I have just taken delivery of my latest batch of brackets, so I have them in stock for anyone who wants one.
The following users liked this post:
XJ-Executive (09-10-2016)