Part 9 Carburettor Decisions cont

Option 6) Fit the original TR8 carburettor/inlet manifold arrangement. This can only be for the purists amongst us. Yes, the parts can be located after much diligent searching both in the UK and the USA, but the cost would be prohibitive. The lowered inlet manifold can still be found, but where do you find the air boxes and ancillary parts?

Option 7) Fit fuel injection equipment. This option appeals to many people, but is it viable? If the Vitesse system is used then equipment at least 20 years old is being removed from one car and put into another - considering the problems I had with the genuine TR8 EFI in my car I feel it would take a dedicated electronics expert to initially de-bug it and then be on hand until the car has been running for some time. Fuel injection systems are excellent when new and properly maintained but can be very expensive to repair. I understand that a new programmable chip EFI is available for the Rover V8 as an after market fit but I will need to delve into this further before passing any comment.

Option 8) The Boxer manifold with SU carburettors. I have seen this configuration fitted to a TR7V8 in Hampshire. The power output when coupled with other engine modifications was very impressive but problems were experienced with under bonnet clearance and fuel starvation. Overcoming these problems could prove to be very expensive.

In conclusion, after being involved with six TR7V8 conversions, my advice would be to opt for the Holley/Offenhauser set up for maximum reliability coupled with good fuel consumption (right foot permitting) and ease of maintenance.