History of MembersPage/Sprocket
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2017-02-06 03:56:36 . . . . host109-156-223-31.range109-156.btcentralplus.com [Further tidy up]
2017-02-06 03:19:39 . . . . host109-156-223-31.range109-156.btcentralplus.com [Page tidy up and add new page Vemstune Tips and Trics]
2017-02-03 12:29:04 . . . . host109-156-223-31.range109-156.btcentralplus.com [change wording]
2017-02-03 12:27:30 . . . . host109-156-223-31.range109-156.btcentralplus.com [Add new page Wheelspeed 2 input]
2017-01-24 15:55:07 . . . . host109-156-223-31.range109-156.btcentralplus.com [Add new page Boost Control]
2017-01-23 14:52:19 . . . . host109-156-223-31.range109-156.btcentralplus.com [Add new page MAT MAP sensor]
2017-01-15 12:59:34 . . . . host109-156-223-31.range109-156.btcentralplus.com [change content]
2017-01-15 11:41:10 . . . . host109-156-223-31.range109-156.btcentralplus.com [Add New page Safe Fusing]
See complete list (51 entries)


Changes by last author:

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The good old Austin Rover Mini with its antiquated A Series engine which has its roots back in the 1950's where long stroke engines were favoured as a result of taxes imposed on cylinder size.
Introduction

The Austin/ Morris/ British Leyland/ Rover legendary A Series engine which has its roots back in the 1950's where long stroke engines were favoured as a result of taxes imposed on cylinder size. Would anyone believe then, the A series engine would be so durable and yeild power figures as they do Today? Here's how it's done.

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Would anyone believe the A series engine would be so durable and yeild such power figures as they do these days? Well, here's how it's done, or, here's how I have done it at least, and note, this is a conservative build, there is room for improvement.
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The car
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sprocket-2942.jpg
Brief overview of the Engine

A BMW K1100 (motorcycle) 16v Twin cam cylinder head engineered onto Rover A+ Series engine and transmission.

*Choce of two OEM camshaft sets, the softer 256 duration cams selected.

*Cam timing set for 115 inlet and 110 exhaust.

*Engine is a 1996 onwards 1275cc MPi block over bored +0.5mm.

*Accralite 18cc dish forged pistons, at 1293cc and compression 8.5:1.

*Standard crankshaft, Nitrided.

*Mitsubishi TD04HL-15T turbocharger from a SAAB 93/95.

*Transmission is an uprated straight cut gearset with a Quaife ATB diff.

*Similar combination already dyno'd at 268hp on 20Psi boost.

Hardware

*Toyota Yaris COP Ignition coils 90919-02240

*Bosch 'Green Giant' 0280155968 injectors

*3bar or 3.5bar Pierburg rail integrated fuel pressure regulator (adapted from some sort of Audi V6)

*Walbro 255 in tank fuel pump

*Bosch 0 280 122 001 Throttle Position Sensor

*Bosch 0 281 002 401 (038 906 051 C) MAT/MAP 3bar sensor

*VR Primary trigger 36-4 (Rover Mini Mpi) (also Rover-K Lotus-Elise e324)

*VR Secondary trigger OEM (late Rover Mini MPi engine block)

*Bosch generic 'blue' CLT sensor

*Stepper motor IAC Valve Taken from a Rover K Series VVC

*Pierburg Boost solenoid

*RTS Verto clutch. A modified standard unit assembled from two standard clutches.

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Set up and config to follow
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The Engine

A BMW K1100 16v Twin cam cylinder head engineered to fit a Rover A+ Series engine and transmission with a SAAB 93/95 Mitsubishi TD04HL-15T turbocharger. Engine is 1293cc and compression 8.5:1, I could have gone much higher but the combination of parts gave me this without going positive deck with the pistons. That said, I know I can throw 30psi at this and it'll still work. The same combination already dyno'd at 268hp on 20Psi boost, so lots of fun to be had!!!

Hardware list

Rover A Series 1275cc +0.5mm (1293cc) engine and transmission

BMW K100 4v twin cam cylinder head using the K1100 'LT' cams (256 duration)

Mitsubishi TD04HL-15T turbocharger from a SAAB 93/95

Toyota Yaris COP Ignition coils 90919-02240

Bosch 'Green Giant' 0280155968 injectors

3bar or 3.5bar Pierburg rail integrated fuel pressure regulator (adapted from some sort of Audi V6)

Walbro 255 in tank fuel pump

Bosch 0 280 122 001 TPS from Webstore

Bosch 0 281 002 401 (038 906 051 C) MAT/MAP 3bar sensor from webstore

VR Primary trigger 36-4 Factory (Rover Mini Mpi) primary trigger (Rover-K Lotus-Elise e324)

VR Secondary trigger OEM

Bosch generic 'blue' CLT sensor

Stepper motor IAC Taken from a Rover K Series VVC

Pierburg Boost solenoid

Vems Round gauge

The clutch is a modified standard unit assembled from two standard clutches. If one spring is not up to the job, just add another...............

It's starting to get tight for space in there now!

It's tight for space!
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Set up and config to follow
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Coil On Plug

Coil on plug options

MembersPage/Sprocket/CoilOnPlug

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Logic Outputs

Changing from power ignition output to 'logic level' output

MembersPage/Sprocket/LogicLevelOut

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Evaporative Emissions Purge Valve

Ideas for controlling the Purge solenoid valve

MembersPage/Sprocket/EvaporativeEmissions

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GPS Logging

I am using an Evermore GM-R700 receiver with the RS232 serial port.

MembersPage/Sprocket/GPS

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Bluetooth

I have been using the VEMS Bluetooth adapter though I am looking at something a little more robust.

MembersPage/Sprocket/Bluetooth

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Noisy 5v+ supply (Fluttering MAP/TPS)

I have experienced noisy 5v+ related to Vems Bluetooth adapter supply causing MAP and TPS to flutter significantly enough to cause engine running issues

MembersPage/Sprocket/NoisyTPS

MembersPage/Sprocket/CoilOnPlug Coil On Plug
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MembersPage/Sprocket/LogicLevelOut Logic Outputs
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Analog Inputs
MembersPage/Sprocket/EvaporativeEmissions Evaporative Emissions Purge Valve
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MCP3208 Channel utilisation
MembersPage/Sprocket/BoostControl Boost Control
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MembersPage/Sprocket/AnalogInputs
MembersPage/Sprocket/GPS GPS Logging
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MembersPage/Sprocket/Bluetooth Bluetooth
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E85
MembersPage/Sprocket/NoisyTPS Noisy 5v+ supply (Fluttering MAP/TPS)
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Thoughts on future use of E85.
MembersPage/Sprocket/AnalogInputs Analog Inputs
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MembersPage/Sprocket/Ethanol
MembersPage/Sprocket/WheelspeedTwo Wheelspeed 2 Input
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MembersPage/Sprocket/MatMapSensor MAT MAP sensor
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Wideband Ri Target
MembersPage/Sprocket/Ethanol E85
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MembersPage/Sprocket/WideBandRiTarget

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MembersPage/Sprocket/VemsTuneTweaks VemsTune Tips and Tricks
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Error Reports
MembersPage/Sprocket/WideBandRiTarget Wideband Ri Target
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MembersPage/Sprocket/ErrorReports
MembersPage/Sprocket/ECUFusing Safe Fusing of the ECU
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MembersPage/Sprocket/ErrorReports Error Reports