waddy

I agree, from my experience the Jenveys have been fantastic and produce plenty of power. I also had a set of AT Power ITBs, but do to a change of plan they were never run by me and therefore cannot comment on performance. Although the carb like ones are more period I don’t think they produce more power and are considerably more expensive.

Regards Ian

Very disappointing for you, hopefully Porsche will do the right thing and cover your costs. It sounds like a manufacturing issue. Hope you get it sorted quickly. Ian

Jenveys in my experience are okay even with the old style linkages ones and performance is good. The new ones appear to have less complicated linkages.

I have one of the Carpoint ones which are very well made, intended for use with the bench adapter I think. I drilled out holes to fit in engine stand, all the cutouts line up with the engine. I know of several people who have used the EBay one too. Ian

Your website says none in stock, can you pm me with price and availability please 🙂

What does that mean Matt? Do you have any available?

I am looking to add adjustable rear spring plates to my 1974 911. I see that there are several alternatives at different prices, some from Prekom and some Dansk (I know there are others including Elephant Racing). Does anyone have experience of the quality of these two please? Ian

Another for Motul, I have used it for a number of years and very pleased with it.

Well done Phil, I took early retirement nearly 7 years ago and I am sure you will not regret your decision. I did go away for 3 weeks in California immediately after I retired and that broke the circle of working. You do need some hobbies to fill the time, but I am sure you will have some car related leisure. Enjoy your own time. Regards Ian

Mel Spear is still transporting cars I believe (see above for number).

Which pipes are you trying to match, metal or plastic? Can you show me on a diagram Keith? Ian

I have used AT Power, Emerald and Jenvey on my ITB journey. Due to a change in engine capacity I sold my AT Power throttles at cost without running them and as they are associated with Emerald I have a K6 ecu. In order to match the 3.2 heads and capacity on advice from my engine builder I then went with Jenvey ITBs which with Emerald ecu give an easy 280bhp with plenty of torque. Emerald were very helpful with information and we did only buy a generic loom which from memory was around £90 with a pile of cables! However it is very time consuming to build up the loom and you need plenty of patience, at the time they did not do a bespoke loom and I was quoted over £500 from another ecu supplier for one. Unfortunately I cannot tell you which set up is best as I didn’t ever get to run the AT Power ones although they do look good. The Jenvey ITBs seem to work well although do require a different throttle linkage set up with cables, although the heritage ones do address that issue. I did not have my engine set up by Emerald as they were too busy at the time and therefore cannot comment on that. I used mainly Clewett Engineering timing and cam sensor which have proved reliable and are a neat installation. I have a swirl tank in my installation with low pressure pump and also high power Bosch Motorsport to power Pico injectors. Hope this helps. Ian

Sounds like you have spark but insufficient fuel. Perhaps a fuel pump issue?

I have a 1975 magnesium box which has sat in my garage for the last 15 or more years, but was about 35 years old then. It has been painted black since I bought the car and this has protected it fine, there has been corrosion which is not very extensive. There are a number of people who can repair or chromate magnesium parts including EB Motorsport who can also repair albeit at a fairly high price. There is a considerable weight saving with these magnesium boxes. Ian