220 Gti |
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Rover
told me it was an LT series build engine and other companies have
told me it's a T Series engine. First gear hits about 30mph at redline
and 2nd gear will see 60. Mid
range power and torque are superb from this car. The car does not
have a turbo engine (yet) this sees a sub 6.5 second sprint to 60
and puts out 190bhp in standard form 'easily' tweakable to 250bhp
(By increasing the boost and adding air filter & decat exhaust & bolting
on an ICON race computer.) |
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Tuning Principles Gallery Volkswagen Rover & MG Join our FREE club Track Cars Car Styling Events |
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The clever thing about the Rover engine is that the MEMS engine management unit does not have tightly pre programmed ignition timing settings - it learns from your car and the way in which you drive it. After sniffing the exhaust fumes, looking at the load on the engine, the revs per minute and readings from sensors around the engine and comparing this with the last 200 miles driven it calculates the best fuel delivery and ignition timing . My old engines sensor returned 1 pulse in every revolution of the crank whereas other engines (newer versions) can operate on 4 pulses every revolution (Including the rebuilt engine I added which had its original sensor) - you must ensure that the crank sensor you have is the compatible with your MEMS unit otherwise the car will not run and you'll have to take off the gearbox, flywheel and pull out the crank sensor and change it for the correct one. Gladly the correct crank sensor (the one from my first engine) sorted out the problem and the engine fired into life. When you drop in a new engine or heavily modify an engine it may not run smoothly for a while - mine took about 200 miles before it ran smoothly I guess it has to learn the new timing settings to use. A recon engine with a crank grind gave me loads of torque low down (pulling very well from 1000 rpm) - and massive '!' fuel economy of 31 - 32 mpg!!
Out of interest the old ratios were 28 mph 1st gear redline / 58 mph 2nd Gear redline 3rd gear became illegal speeds so I didn't record a figure for it. |