|Carbs, Injection, Ignition etc.
Comments from the Most beautiful people in the World,
Quote of the year! Some people like to listen to music while they work ... Me? Now I've been on your site, I just work with the sound of your V8 in the background. DD.
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Injection Section (Chipping)
Even this 185mph 500 bhp Ferrari needs an RPi chip
Chipping ensures it doesn't get there late.
Click the above picture for a small video of this Ferrari (1.6mb)
It's been about five weeks now that I've had your Tornado chip in my Morgan Plus 8 4.6. I am very pleased with it and the Magnecor Competition ignition leads installed at the same time. Everything has settled in nicely: The engine idle is absolutely rock-steady with instantaneous pick-up.
There are no flat-spots, and rather than running out of breath at around 4,500 rpm, the engine's in-gear performance now displays a second wind at 3,000 rpm and eagerly revs to 5,000 rpm and beyond.
Can't make any judgement about 5th gear performance beyond 4,400 rpm yet, that will have to wait until I go to Germany.
The engine certainly feels rather more perky. Fuel consumption in town is unchanged and about 10% better on a trip. There is a marked improvement in throttle response: it now borders on the telepathic.
The more I drive the car, the more I appreciate the changes to the engine management. The improvement in driveability is considerable.
Many thanks and kind regards, Achim Gloger
Gems (4.6 Hse & 4.0 Se.) Chipping for Efficiency, Economy and that missing power!
Rover P6 - V8 - Piper Cam, Webber etc
I've finally got the car running ... 6 months ... after the initial burst of action things slowed down until my wife started complaining (not much) about the "wreck" in the garage.
The package and information you sent was virtually turn key. Congratulations on an excellent service.
The only difficulty was my lack of knowledge and reluctance to finish a job ... the reluctance is all behind me, the cam and carb were the simplest part of the whole exercise. They have a rumbling sound that can only be described as evil, every time I start the engine it gives me "chicken skin" as it cackles and barks.
The choke is now a thing of the past, with the SU carbs I had a starting routine of run for three minutes on full choke, half choke then, cough, stall, restart, full choke another minute, then move. With the new carb and manifold its "wurr, bark" and off (slight pause to allow the goose bumps to be removed from my arm and the oil to do its thing).
I'm very happy with the performance, the flat spot that used to be attached to the throttle, you know, foot down ... pause ... paint dries ... then the engine woke up ... has gone, power is instant.
I've just a little matter of fabricating a auto kick down ...
Thanks again for the parts and the service ... I would recommend your service any international person.
Weber 500 - 3.5 Range Rover application.
I can say that the car is completely different. It is much stronger, quicker and has got a complete new sound. It is much more responsive. - and even with only about 60-70% of the throttle its supposed to have, it has become a much better car!
Thank you very much for supplying this kit - I really enjoy it! If you need yet another happy reference, you have got it!
Weber 500 & Cobra 289
Chris, I fitted the Weber 500 to the BRA 289 4.6 this evening. Instead of a lumpy tickover at 800 rpm (the best I could get the Holley set up for), the tickover was a silky smooth 600 rpm, even with a cold engine and no choke connected - and straight out of the box. I was able to lower this to under 200 rpm (guessing, because the tacho needle hardly moved off the end stop, but engine was still cold), and then raised the tickover back to 600 rpm (worried about low oil pressure when warm). I can't wait to take the car out tomorrow, to set up the mixture once warm, and see what it does on the road! Will keep you informed. Best regards,
David (Butcher) Germany
Hi Chris, I have just fitted the Weber 500 carb and Offy manifold to the 3.9 in my Mk2 Granada Estate. It goes like a dream, ticks over smoothly, and pulls up the one-mile-long steep hill near me like a little sports car. I first 'V8-ed' my Granny 9 years ago with a standard 3.5 and, after various little changes, now have a 3.9 and stage one heads (from you) plus the carb kit I have just fitted. When I phoned for advice, you and your team were always very helpful. Thank you, I am pleased as punch with the car and am off to Wales this afternoon in it.
Weber, Mallory and a 'budget priced' Cam Kit Upgrade
After a Couple of small MG-inspired issues, this stock 75K miles Original MG had a 3.9EFi cam, Weber 500 and Mallory Duel point ignition upgrade. The customer's comments speak for themselves.
Good bloody grief!! All of a sudden it felt like I had another 30 horses! (this was 30bhp more than the 30bhp gained already from the original upgrade and before final set up) Under WOT in first gear the car will fishtail left-right-left and the first time I tried an overtaking manouevre on a semi-trailer truck, changing into second under full power almost snapped the car totally sideways! VBG Woo hoo is all I can say :) I DO have to be a bit careful with the car now! She lights up the rear wheels at anything over 4000rpm in first and also on the change into second.
BTW, bragging I know, but I absolutely ate an M3 who wanted a race last night (up to 60mph where I chicked out on a public street). Boy that was a shock. He wouldn't leave me alone, beeping at me when I pulled over to fill up for gas, wanting another go!!) How childish! ;) Pity about the corners ... the suspension, the brakes, all feel VERY OLD right about now, and they are all brand new ( but not from RPi).
Thanks Chris, this really is a wonderful combo (she also idles beautifully and has already withstood 2hrs locked in Dublin traffic). I don't think I've ever had such a big smile on my face after driving any car. The other thing is the sound, wow it sure sounds like a V8 now!
Bought a couple of heads, a Weber and a Malory (electronic) for my 4.6 (in an MGB) last year. Thought I'd let you know that when I got it tested on a dyno it was producing 270Bhp and 350 lb/ft! I am somewhat surprised by these figures as it clearly out-guns even your stage 3 as quoted on your site.
Not sure what cam I have, but the heads were just your standard RPi stage 1.
The guy at the test station adjusted it to just 6 deg. BTDC at idle, which gave an extra 30bhp over how I had it set up.
The torque is staggering - it accelerates quite happily from around 400-500rpm in 5th (about 10-12 mph). Who needs gears?! Just wanted to say thanks. I am very impressed that a collection of bits supplied by you could make so much difference with very little configuration needed.
That was speedy!
After reading your site, I'm now thinking about changing the dizzy to a Mallory. It has a Lumenition kit in reasonably good condition Lucas dizzy at present, but I think it could go better than it does. Anyway, thanks for all the info on your site on that too.
I'm going to print it out & read it again.
Hamish Wilson Wellington >> New Zealand
re: weber 500 I bought.
Well, I thought I'd keep you posted. The petrol strike caught me unawares and having managed to cram 10 gallons in the Land Rover 90 I pottered down the motorway from my parents in Leicester at a steady 55mph ... Finding another filling station with petrol, I topped up again at the other end, and was more than pleasantly surprised to find that I was averaging 27 mpg. I don't think I'd ever have got that much out of the Strombergs.
I purchased an Edelbrock performer carburettor from you about two years ago to fit a 3.9, and I just wanted to say how pleased I have been with it. It seems more powerful than the standard EFI, as economical, and runs cleaner. It always starts first time and goes like a rocket in my Range Rover pick-up. I hunger for more power though, and soon may consider a larger capacity, though money is the big issue. :-)
I finally fitted the Weber and manifold and am impressed how it works so well 'out of the box'. Smooth faster acceleration and part throttle running. I am looking forward to getting in a decent run to have a look at the fuel economy. Best regards, David Mildwater Australia.
Lisa and Team,
I would like to thank all the Team at RPI, with a special mention to Chris. Everything that RPi has helped me with has been absolutely correct. The team has fielded many questions from me and have always given professional advice, looking to support my ownership of the classic car, not classic bills!
The Weber conversion kit has really impressed to the extent that I thought I was driving a different car. The Rover V8 specialist who fitted the kit, was so impressed he is looking to order one as well (to replace his Holley). The specialist raised his eyes, when I told him all parts needed had been supplied, he again was impressed that the kit was a kit that actually went together very simply. Great advice with great product!
Again all my thanks from 'the other' not 'the under' side of the world, for giving me an engine that now breaths like a dragon.
I finally fitted the Weber and manifold and am impressed how it works so well 'out of the box'. Smooth and faster acceleration and part throttle running. I am looking forward to getting in a decent run to have a look at the fuel economy. Best regards, David Mildwater Australia
Hello again, Bet you hoped you'd heard the last of me
Actually I was writing to say that fuel economy has gone up from 11mpg to at least 14.5 (driving continually round central London) which I make out to be an improvement of over 30% -and I haven't even had it tuned properly yet. It runs absolutely smoothly and if you put your foot down (which is oh so tempting) emits a deeply satisfying startled roar oh so unlike the muted grumble I used to get. Oh dear, I must sound almost poetical.... One remaining question: I can't work out how to connect the supplied throttle cable to the pedal, which I would like to do as the original had to be botched to fit and is a little short. Again many thanks Andy Spark
p.s. installed your (totally comprehensive) Edelbrock/Weber manifold carb and filter on my 3.5 Rover engined Cobra and found it a simple conversion which has allowed the full potential of my engine modifications to be realized. It has now completed the Belgium to Sicily rally and 20hr round Wales rally with no problems other than the driving!! many thanks again.
Remember me? Alex St Matthew-Daniel, the man with the Rover P5B that we 'bolted on' an Edelbrock manifold and Weber Carbs to. I just wanted to say that all is going well. The old girl can really pick up her skirts now but still retains her dignity. I seriously embarrassed a Golf GTi owner the other day. The opportunity to come down and work on my car at your workshop was a unique and enjoyable education. Could you pass my special thanks to Geoffrey and Holley for their patience and expertise. I am hopefully looking forward to a future instalment.
Chris, You put a Weber into my 3.9 SD1 automatic a few weeks ago and it is a great success: top end performance is amazing and I think the low end torque is better too. I haven't checked fuel consumption accurately yet, but it seems no worse than either the original Strombergs or the later SUs, even allowing for using the much better performance. The only problem I've had is the oil pressure relief valve stuck open! But that's a different story, regards. David Parsons UK
Just installed the new Weber carb you sent me and its brill, as you said 'plug and play'. The old Holley was thrown in the rubbish where it belonged. Had to make a slight mod to the throttle lever to gain full throttle, but less than an hours work from start to finish. I would recommend to all your customers that drive off road or want instant power without any problems (Holley) buy the Weber. A very happy desert dualer!
Alan MC Dowall. U.A.E.
Chris, Just wanted to say Thanks for a great day a week last Friday (27/8) when I visited you to get a cam, Weber 500 carb and distributor fitted to my SD1. I was delighted to be given a pair of overalls and the chance to help out while Paul did the difficult bits... The car is a completely different animal now, thanks to the new cam, carb and manifold - much more than I could have hoped a V8 would sound and go. But of course I now want more - I have a feeling that I'll have to be back next year, perhaps for a 4.6 with stage 3 heads. Next time I'll wear sensible clothes and bring my own overalls - they fit better!
Cheers, Mike Evans.
Hi Chris, Some months ago, I had the good fortune to let your guys have a 4.6 bottom end to build up for me. Piper cam, new timing chain, mains, etc with stage 1 heads and a Weber carb. Well it was installed into my Landrover lightweight hybrid and away I went, happy as Larry.
Until recently. I decided that perhaps there should be a little more performance available so I checked the carb. Oh, it was only opening about three quarters. After some drilling and re-doing the throttle cable connections, I now find that not only do I have more power on the primary chokes (surprise, surprise) but now the secondary chokes actually come in too. Before, I was as happy as Larry, whoever he may be, NOW, I'm even happier. The bottom line is, thanks for the motor, your guys did me proud! The local GTi brigade are less than happy with the 'old' Landrover that leaves them at the lights though. Thanks again,
Alan Hodgson. U.K.
Dakar - Update Hi Chris, Finally got the Dakar running this weekend after the problems with the thermostat housing & oil pump. Yep, It worked !As you will (hopefully recall) the car was suffering from a mid throttle flat spot and a general lack of performance. >
A complete Weber was fitted and it has solved all the problems, Throttle response is good and the car seems to have much more 'legs' now. To get a little more performance from the manifold, I got my dad to gas-flow it for me! I haven't had a chance to try it off-road in anger yet, but I have tested it at some pretty extreme angles both front/rear and sideways and no problems were evident. I have made the fuel re-circulate to prevent vaporization issues. So, I must congratulate you for your assistance when I drove over the other week and look forwarded to doing more business.
The Weber is tolerant of all engines and, unlike the Holley, jetting is never the issue. But like all upgrades it will not work well if the engine has other issues or problems (see why below).
Chris, Boing, Boing !
Actually, I'm just trying to put the carb back to where it was when you shipped it. I'm not sure if you remember but my local garage spent months playing around with the jetting to no avail. I plonked on the Mallory dual point at your suggestion and hey presto problem solved! So, it's way too rich and I just want it way the way you had it.
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Weber Offroad Update
Spent this weekend in Salisbury for our annual off-roading expedition. Experienced no problems with the carb at all. Mid throttle response is excellent, and my mate in his 5.7 Chevy LR hybrid struggled to keep up with it on the road.
See Elliots Dakar in action
The Mallory Dual Point is working a treat, you probably don't remember me, but I'm the computer programmer that spoke to you a couple of months ago. Just to refresh.
My F27 Self Build kit car, has a Rover P6 V8 in, and is running much better now with your Mallory Dizzy.
Just like to say it, thanks for all of the great help and service you gave me, all I can say is wow, runs like a dream now, and is v v fast, I'll send you some photos for inclusion on your web site, it's just fantastic now when you mash your throttle into the carpet.
Great, Andrew Bourne, :) LOL
Your kind comments are always appreciated - 'Thanks'
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