Thread: New stage one

Nice. I saw that on Car Sales looks really good.

First see if it's still got the restrictor plates fitted under the carbies, they cut the power back quite a bit. I remember once repowering one of those with a 4.4 P76 engine and getting chronic bunny hopping from the front end with the bigger motor, had to engage CDL to get out of my bitumen driveway.

Originally Posted by bee utey

First see if it's still got the restrictor plates fitted under the carbies, they cut the power back quite a bit. I remember once repowering one of those with a 4.4 P76 engine and getting chronic bunny hopping from the front end with the bigger motor, had to engage CDL to get out of my bitumen driveway.

Thanks for the info, is it just a case of lifting the carbies off and removing the plates? Might have to have a look at a workshop manual

Originally Posted by Summiitt

Thanks for the info, is it just a case of lifting the carbies off and removing the plates? Might have to have a look at a workshop manual

Improving the Stage One V8 The most popular improvements are: power, economy, ride comfort and interior.
Power: As standard, the V8 is fitted with restrictors between the carburettors and manifold to reduce power to 90 bhp. Land Rover felt that any more would make the vehicle too fast for the brakes and suspension. The restrictors are quite easy to remove. Take off the carburettors and you will see the restrictors. They are held in with snap rings, and can usually be levered out using a thin bladed screwdriver. Take care not to damage the manifold, and fit new carb to manifold gaskets on reassembly. This modification will take the engine to standard Range Rover tune (135 bhp).

Improving the Stage One V8

Nice toy

Regards,
Tote

Originally Posted by Summiitt

Thanks for the info, is it just a case of lifting the carbies off and removing the plates? Might have to have a look at a workshop manual

a consideration to think about - nobody seems to have yet posted just why the restriction was installed....

(the ome brakes were regarded as inadequate for a full power version of the V8)

Originally Posted by 87County

a consideration to think about - nobody seems to have yet posted just why the restriction was installed....

(the ome brakes were regarded as inadequate for a full power version of the V8)

Did you read the bit I quoted?

Clearly the original market would have been different to today's. Company cars with poor handling and braking and vehicles needed to not maim too many inexperienced drivers. I even noted the axle tramp with a more powerful engine down below. Older people who buy them now probably aren't into racing them around like teenagers so will survive.

Originally Posted by bee utey

Did you read the bit I quoted?

Did you ?

Clearly, my post is advisory

It occurred to me that due to the lack of relevant information being posted in this thread, the OP may not have been aware of the manufacturers' opinion that there is an inherent design inadequacy of the standard brakes in relation to the use of un-restricted power of the V8.

If I had a V8 Stage 1, and if I wasn't aware of this issue, and if I was considering removal of the restrictors, then I would like to know why they were originally factory installed.