MGB Race Engine Start Up and Running to 7000rpm B-Series 1843cc
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- Опубликовано: 10 сен 2024
- Just a very quick video showing the engine in my MGB running, I know viewers would be disappointed if I did not take it to the redline; 7000rpm.
The red light you can see is the shift light that comes on at 6800, and the engine was up to temperature before I started filming. The oil temperature gauge that you can see is not currently connected.
Thanks to Opie Oils for all their support in 2022 www.opieoils.c...
Wow, a B series hitting 7k rpm. That's neat ! Nice and smooth too.
bet the neighbours love 7000 rpm !! another great vid
I tried to keep it as brief as possible!
And to think that engine dates back to 1947,....sounds fine ! (Chris MG bgt 2.0)
That sounds GREAT! I'd be smiling too. Thank you for sharing.
Thanks David!
Can't wait to get mine finished and on the road!
Sounds great. Looking forward to the race video.
That is a healthy sounding engine. I wish the engine bay in my MGB was as spotless as yours. I look forward to the track footage.
Many thanks Trent!
@@davidrussellwilks that’s a splendid mg you got there! May I ask what one must do to achieve a 7,000 rpm redline ? I’m looking to buy a 1975 mgb roadster and would like to know what I can do to get either a 7,000 or 8,500 rpm redline
David, you surely can send me that motor to me here Down Under as l would be much appreciated . Cheers Steve 🍺🍺🍺😂😂😂😂
Amazing. How did you go about getting the rev limit up, and how do you know how much it can take? Lovely sound
Brilliant
I’d love to have heard how snappy the throttle response is on heel-toe blip for down shifting.
Love your car my friend
Many thanks Matt!
Sweet!
Hi David, I’m based in the uk and just wondering who you used to get your engine bored? Also what head and cam are you running ? Thanks
Thanks for your message Ethan, my engine builder used Ivor Searle to rebore the block, the head is from Peter Burgess and the cam is a Kent 719SC
Thanks for the video David. I have a Bee, 5 bearing engine in my MGA. I appreciate it depends on the cam, but I found my engine didnt make any more BHP at 7,000rmp than it did at 6,000 even though it will rev past 6,000rmp. I guess I could run with a full race cam but that makes the car a pig to drive under about 4,000rmp. How dod you find your Bee to drive under say 3,000rmp in 4th gear?
The car has a fairly hot cam and is unhappy below 4000rpm generally. Peak power is at 6800rpm, on the track I like to keep it between 5-7000rpm
@@davidrussellwilks Thanks David, I thought that would be the case, espcially as you have built a track car. Mine does not like being under 2,500 rmp over that it is fine. My MGA makes 150 rear wheel bhp at around 5,900rmp, tends to drop a little after that.
David, are you still racing ? did not see much lately
Many thanks for your message Steve, no racing this year but I hope to be out again in 2024. We have been house renovating for most of this year.
Throaty! Love it! Tourist trophy exhaust?
Yes, the full Moss Tourist Trophy system. I had to have another backbox made though as the first one cracked around where the hanger attach. The replacement is thicker stainless steel.
Sounds ok above 3k but it's lumpy and rough at the bottom end,definitly needs more carb tuning.
I'm not sure it needs tuning; the engine does not come into the power band of the cam until 3500.
Sounds good! What tach is that?
Thanks for your message, it is a Smiths classic motorsport tacho. www.smiths-instruments.co.uk/motorsport/motor-racing-instruments
Gorgeous sound! Where or how do you get your weber tuned? My BGT has a 45 but tends to cough a lot when under load.
I would definitely recommend having the car rolling road it, it's the only way to really set up the weber carburettor.
Hi David, looks good sounds great.
Two questions: Why not SUs?
How is your Weber choked and jetted.?
Thanks from Oregon USA
Thanks for your message Jeff, the Weber 48 does seem to be the best option for outright power, I think the SU's are better for engines below 140bhp or so and do give a good response, they are certainly happier than the Weber at lower RPMs too.
I know the Weber has 45 chokes, I don't have the other details to hand though, it was set up on a rolling road and since then I've left it well alone!
@@davidrussellwilks Thanks.
What's with the magically-moving washer bottle? Thermodynamic much?
Lovely motor! Mine's still on (slightly modified) SUs but then it's an all-season road project
Sorry Ian I don't quite understand: " magically-moving washer bottle"?
@@davidrussellwilks I'm probably mistaken, but at 0:48 the Tudor washer bottle seems to be almost hard up against the oil breather hoses, but then at 1:38 it appears to be further to the right. Perhaps just an optical illusion due to everything under the bonnet being so clean and shiny :-)
@@ianactually I see what you mean now Ian, there are two bottles, one is at the back of the engine next to the aluminium catch tank (this is the washer bottle). The bottle you can see bottom left 1:38 is the overflow for the coolant, if you look to the right at 01:38 you will see the washer bottle too.
@@davidrussellwilks Thanks David!
Love the sound, what are the specs of your engine, pistons, cam, pushrods etc. Thanks
It's 1843cc, JE Pistons, Arrow Rods and Arrow crank. The cam is a Kent 719SC, pushrods are standard MGB. There are more details on the car here, this is a few years ago and the engine spec has changed since then, www.britishracecar.com/DavidRussellWilks-MG-MGB.htm
Where do you tend to buy your racing parts from? They seem a little hard to find
I use the following suppliers (in no particular order):
Cambridge Motorsport
MG Motorsport
WOSP
Brown & Gammons
Moss Europe
Burton Power
Various eBay sellers
Demon Tweeks
Is there anything in particular you are trying to source?
@@davidrussellwilks Thank you very much! Nothing in particular but I bought an MGB GT a few months ago and wanted to turn it into a sort of vintage rally car and do some time trail events with it, I'd be curious to know more about your gauge cluster though because I see you have an electronic speedo and tach.
@@ShaunJV12 Thanks for your message, the speedo and tach were both from Smiths www.smiths-instruments.co.uk/ , the smaller gauges are from Farringdon instruments www.farringdoninstruments.com/