Clive of V8 enhancements is pleased to announce his latest development for Rover v8 powered TVR`s. The V8 Enhancements stainless steel tuned exhaust manifold system is a new application of exhaust tuning the likes of which (to the best of our knowledge) have never been seen on a RV8 powered TVR  before.

The system has been designed to achieve equal spacings of the exhaust gas pulses within the secondary pipework by pairing together the pipes that fire an engine rotation apart , for example cylinder 1 fires then the crankshaft rotates a complete cycle  before cylinder 6 fires.

This pair of primary pipes must be of equal length for the tuning to have best effect. After extensive testing on the dyno at Track Car Solutions, it is clear that the design of this system will return substancial increases in torque and bhp right across the rev range. Initial testing was carried out on a 500 Griffith running a Lucas ECU, and involved back to back testing against the standard TVR manifolds and catted Y piece, please note that the manifolds had already had the pre cats removed so gains over standard manifolds would be even greater.

The results showed that the tuned manifolds gave an increase of 25 to 30ft lbs of torque and 20bhp, however these increases were not so substantial over 4000rpm, which is due to the limitations of the Air Flow Meter and Lucas ECU not metering the fuel correctly and the subsequent lean mixture in this rev range was limiting the true potential of the new manifolds.

Further testing will be carried out in the near future on the same car but running on an aftermarket ECU which will then achieve the
correct fuelling and timing requirements in the higher rev range to realise the full potential of the new system. We expect the gains
already shown up to 4000rpm to then continue and maybe even increase up to peak rpm, and with this set up Joo at Track Car
Solutions fully expects to achieve an increase of up to 30 bhp!

Further details will be added to this site after the testing has been completed, and final costing of the tuned manifold system will
be given on completion of dyno testing.

Two videos of the system can be seen on TGPTV just click HERE and HERE to view  

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Clive F on TGPTV