This product is included in GTT 240 conversions and above. Produced to our own spec further increasing power output with no loss of low end power whatsoever.
The spec is a little special in that it we use different cam timing for the inlet and exhaust valves as well as increased lift on both. This cam is optimised for the 'S' and is not a compromise cam designed for both 'S' and non 'S' Minis. It is available as either a new billet replacement cam or as a re-ground OE cam. Either way the timing & lift is identical.
From £289+vat.
GTT ADJUSTABLE VERNIER CAM SPROCKET
Having spent considerable time checking & testing cams one thing we have found is that the car manufacturers timing can be out by up to 3 degrees (crank angle) also as the cam chain wears it stretches and retards the cam timing. To combat this, our GTT adjustable sprocket allows simple, easily accessible adjustment of the timing: either to the manufacturers spec (using a drop-clock and degree disc) or with rolling-road power runs to optimise power output. GTT include this product when fitting our cam (exchange) .Why settle for nearly right when you can have provision for absolutely right!
£99+vat (exch)
GTT 63mm LARGE THROTTLE BODY
This product is included GTT240 conversions and above.
The STD 57mm throttle body when modifying to higher levels of power becomes a restriction that needs to be removed. Consider also that at wide open throttle the excessively wide butterfly spindle imposes a further restriction (a reduction of 570 square mm's) reducing the cross sectional area to the equivalent of just 50mm diameter!
At GTT we precision bore to 63mm diameter. This size perfectly matches the internal diameter of the SC inlet plenum which it is bolted and dowelled onto. The surface finish is maintained to CLA 32 or better. In other words very fine and accurate, ensuring no sticking throttle plate or leaking at idle. We have seen other offerings that would make a ploughed field look flat! Throttle bodies are sold on exchange. Where possible the customers own part is modified.
£249+vat (exch)
As an optional extra we can further increase cross sectional area at wide open throttle by careful removal of much of the throttle spindle (POA)
GTT Stage 1 Gasflowed/Ported Cylinder Head
These are reworked in house by GTT. Combing 14 years of gasflowing experience and a lot of hard work; the results are outstanding. More power, better fuel consumption and improved reliability through everything working more efficiently. You really can have your cake and eat it!
£499+vat (exch)
GTT Stage 2 Gasflowed/Ported Cylinder Head
With the stage 2 things get a bit special. Firstly the exhaust ports are CNC milled out to achieve perfect port size, shape and position. We are unique in using true 3D cutter paths, cad-cam generated. Long series ball nose cutters machine the ports achieving true 3D transition from port face to throat. Only GTT do this! No manual method can achieve this level of accuracy, nor maintain consistent metal removal this far down the ports.
Secondly the exhaust valve seats are increased in diameter by 2mm internally, giving big improvements in getting the exhaust gasses out. On top of this there is still around 25 hours of manual fettling and polishing carried out on the inlet and exhaust ports, throats and combustion chambers. We also flow the manifolds and even the exhaust header pipes if required.
£799+vat (exch)
'NEW' GTT Stage 3, 4 and 5 Gasflowed/Ported Cylinder Head
This product is included in GTT 240 conversions and above. Produced to our own spec further increasing power output with no loss of low end power whatsoever.
Having spent considerable time checking & testing cams one thing we have found is that the car manufacturers timing can be out by up to 3 degrees (crank angle) also as the cam chain wears it stretches and retards the cam timing. To combat this, our GTT adjustable sprocket allows simple, easily accessible adjustment of the timing: either to the manufacturers spec (using a drop-clock and degree disc) or with rolling-road power runs to optimise power output. GTT include this product when fitting our cam (exchange) .Why settle for nearly right when you can have provision for absolutely right!
This product is included GTT240 conversions and above.
These are reworked in house by GTT. Combing 14 years of gasflowing experience and a lot of hard work; the results are outstanding. More power, better fuel consumption and improved reliability through everything working more efficiently. You really can have your cake and eat it!
