Harrop Super Charger Group Buy

We are able to offer the Harrop HTV1320-LSJ Supercharger on a group buy. We need a minimum of 5 units. They will come with a 90mm pulley which is good for circa 300bhp They can be ordered with an 80mm pulley which is good for 310-325 bhp with standard cams but will push the OE pistons over there durability threshold.
The cost for the unit Shipped here to Courtenay in the UK is £1475 inc vat ,
Delivery to the UK mainland is £19.95 inc vat

We will require a 50% deposit for each unit which we will take at the point that order is submitted to Harrop. With a good prevailing wind a tide the units should take 7-10 days to reach us, however we are reliant on shippers, freight forwarders and lastly Customs who will all work at there speed!! dunno..

I'm sure this has already been documented but here are a few pointers to the engine specs required

In addition to the Stage 2 conversion you will need the following.
At 300bhp you will need uprated rods and an uprated charge cooler system. i.e a header tank with a capacity of +3 litres, a Large Pre Rad such as the Pro Alloy unit, a duel pass mod carried out to your heat exchanger, 470cc injectors, dyno set up to recalibrate the ECU..
I'm sure you can understand that we have not tried all the possible combinations & variation of set up, but here are some notes and thoughts on what we have seen so far.
Our test work so far has been with Nick who is using a 3" tubular & 4 branch I'm sure other 3" exhausts i.e the Chris Tullet version will perform in the same manner.. Sorry we have not tried this combination with the 2.5. Nicks car also was running low compression , so in truth we don't know if this power (300bhp) can be achieved on 99 Ron fuel at 10-1 compression ratio, my gut feeling is that we wont manage it but it would be nice to be wrong here.

If you have uprated pistons then the 80mm pulley can be used and the power we have seen is 325 on a coldish day and 315 on a hot & humid day. Any pulley smaller than 80mm is wasted with standard cams as the boost goes up but also the back pressure indicating that the exhaust cam has reached its limit.

If you have any queries please feel free to give me a call, I know and I'm sorry I have been hard to get of late, however the car I was building in the workshop is now finished and as have our shows and 25th Anniversary bash.

Finally big thanks to Nick who has been invaluable in helping sort this out. :thumbup:

Cheers Jon cheers..