MGB GT V6

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aeropilot

34,526 posts

227 months

Wednesday 24th February 2021
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You've already posted that.....?

confused

mgb281

16 posts

65 months

Wednesday 24th February 2021
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I did it from my phone and after submit the screen froze, then it came up with preview and then submit. I am surprised it managed to post four times though.
For those that are interested, in the USA there are large numbers of MGB’s fitted with V6 engines, most of which are GM 2.8 to 3.8. No one knows exactly how many but there are thousands, partly because you can fit one of these engines in a weekend, in your garage with no specialist tools or welding. You can buy the kits from CCE. Likewise there are a smaller number of V8’s with the Ford 302 currently the most popular. In fact a Ford 302 and T5 can weigh as little as a B series with an OD gearbox.
Going back to the B itself, despite what the naysayers will tell you it is quite a good basis for a fun car if you start eta chrome bumper one. The rubber bumper cars are much more difficult to get the front geometry correct. I am increase the front track by two inches, if you look at the MGB crossmember and suspension you can see how simple it is. Again now that you can buy adjustable valves to go in the Armstrong’s they are better than buying Gaz, Spax or AVO. Lowering the top mount by just 6mm raises the roll Centre almost another inch. In a MGB the engine sits within the wheel base giving excellent weight distribution and if you remove the rubber bumper on a later car you lose nearly 100lbs just by undoing a few bolts.
Other engines being fitted at the moment, in Canada a Honda V6, in the U.K. an Omega V6 which is an almost drop in transplant, Saab 4 cylinder turbos, Ford Zetec 2.3 turbos from Mustangs, Ford SHO engine and the list goes on.
In comparison to most of the above a Rover V8 in good condition and manual gearbox is not the cheap option. I know that I have bought parts overs period of time but if you contra the parts that I have sold with the extra that I have bought then it’s a very cheap way to go.

mgb281

16 posts

65 months

Wednesday 24th February 2021
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300bhp/ton
No I am not angry at all, but it does irritate me when someone who obviously has not researched the subject replies saying it’s not a good idea or here’s a better idea. If you start with a chrome bumper body shell car you need to cut the bulkhead to fit the Rover V8, most of the other engines I listed that is not needed. A straight six is major surgery unless you start with a MGC which has a totally different front end. Then someone says that says that because they drove one they all handle badly when with simple cheap mods they can be very good indeed, I accept a lowered rubber bumper car is the worst of them all.
I have not meant to offend anyone but the original question was sound but he did not receive any truly constructive help. To be told that OHC engines are too tall when a number of different ones have been fitted shows that no one looked to see if it has been done

Oilchange

8,452 posts

260 months

Wednesday 24th February 2021
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Get some pics up then!

mgb281

16 posts

65 months

Wednesday 24th February 2021
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More info for those that are interested;
Jag V6 standard engine mondeo inlet manifold 270 bhp on Megasquirt. https://www.locostbuilders.co.uk/viewthread.php?ti...

Converted MG's in the USA http://www.britishv8.org/Photos-MG-Conversions.htm
Because Dave Healey sells suspension upgrades you have to read this carefully but all the info is there,

https://www.mgexp.com/forum/mgb-and-gt-forum.1/low...

http://fast-mg.com/grip_tech2.htm

https://www.mgexp.com/forum/mgb-and-gt-forum.1/low...

Ron Hopkinsons modified front suspension, even Moss who sell it did not know that it improved the front geometry, when I questioned them about it they said it was an old ad and it did not alter the geometry. I persevered and they confirmed that the top pivot was indeed moved down by 6mm. This is a reasonably priced upgrade because you get a lot for your money and it DOES improve the handling, https://www.moss-europe.co.uk/shock-absorber-conve...
I suspect this Frontline kit does exactly the same as the above but would you pay £400 and have AVO instead of Bilstein, looks pretty though, https://www.moss-europe.co.uk/shop-by-model/mg/mgb...
I made a copy of this four link rear suspension myself using Bilsteins, tubes and rod ends from Speedway Motors total cost about £350, http://forum.britishv8.org/read.php?2,66331
As I said in a previous post, Jag S type engine (pre 2002.5 is simpler) X type sump, Mondeo V6 flywheel, combo S type/Zetec starter motor, RX8 gearbox, RX8 gearbox adaptor plate from Freddy, Mondeo ST200 inlet manifold, ST 200 lower inlet manifold, home made headers and ECU of your choice. Most use Megasquirt or Emerald, I bought a Rocketeer one with loom at a reasonable price.
The ME442 setup did not work for Rocketeer due to a number of faults in the design and or spec that was dictated by Rocketeer, firstly there was no VVT operating this was a Rocketeer spec, I was informed by a tuner that there was a connecting pipe between the two halves of the inlet manifold that had a detrimental effect on the performance, this was corrected later on after they changed to MBE. The two throttle bodies had problems with the linkage affecting driveability and lastly there was wideband sensor to offer closed loop tuning.
I hope this helps all interested readers.
PS A laptop is better than a phone for this as I have just found

Edited by mgb281 on Wednesday 24th February 20:33


Edited by mgb281 on Wednesday 24th February 20:58

mgb281

16 posts

65 months

Wednesday 24th February 2021
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Oilchange said:
Get some pics up then!
Currently the car is now stripped down to bare metal, Golf MK1 rear wheel arch repair panels about to be welded on, MG Midget rear valance welded on to give an all steel Sebring look like Dan Masters car,. Next thing is strengthened rear suspension mounts and a few interior body mods before painting with epoxy primer. Once the underneath and engine bay are painted fuel and brake lines will go on while the car is still on the rotisserie. Then the gradual process of finishing, I intend to have this on the road for when I retire in two years time. The design is still evolving, the rubber bumper crossmember went as soon as I realised that it was not needed for sump clearance, the fuel tank is also being centred to have a proper twin pipe exhaust system. the centre crossmember is having the centre section made removable so the gearbox can be removed without removing the engine. Small things but as you know they take longer when you work full time.

ianmcass

13 posts

85 months

Wednesday 7th April 2021
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I fitted a v6 to my MGB. My engine choice is a little different to what anyone else has used smile

https://rlw7w.uk/about/


aeropilot

34,526 posts

227 months

Wednesday 7th April 2021
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ianmcass said:
I fitted a v6 to my MGB. My engine choice is a little different to what anyone else has used smile

https://rlw7w.uk/about/

Perfect choice by the looks of it thumbup

niva441

2,005 posts

231 months

Wednesday 7th April 2021
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An interesting non-obvious choice, the narrow dimensions explain why some of them are finding their way into Scimitars.

aeropilot

34,526 posts

227 months

Wednesday 7th April 2021
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niva441 said:
An interesting non-obvious choice, the narrow dimensions explain why some of them are finding their way into Scimitars.
Yes, the narrow angle was why Vauxhall were able to fit them transversely across the engine bay of some of the fwd smaller cars, and Saab were able to fit them transversly into the fwd Saab 9000. My late father had a Saab 9000 V6 as his last car, which I inherited after he went, and ran for about 6 months and it was a nice engine.


mgtony

4,019 posts

190 months

Wednesday 7th April 2021
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ianmcass said:
I fitted a v6 to my MGB. My engine choice is a little different to what anyone else has used smile

https://rlw7w.uk/about/

Ian, I've just spent a good while reading your webpage after seeing your post on MGEXP. Plenty of interesting stuff to read and look at on there.
Came from there onto PH and now seen your post here as well! smile
You've done a great job on the car. thumbup

DBSV8

5,958 posts

238 months

Wednesday 7th April 2021
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baconsarney said:
Greg the Fish said:
Well they made a V8 that was probably way bigger than modern engines, granted it was utter utter ste .....
I had a factory MGB GT V8. If you’re saying that car was ‘utter ste’ then you should hand your PH card in and feck off now smile

If you’re referring to the RV8 then you should know PH started life as a TVR enthusiasts forum.

smile
if your talking small block V8 the LS7 is the most compact V8 available ..... and pushing 515hp as standard .. with 25mpg ...