What supercharger?

Mongman · Post by **Mongman** » Fri Oct 07, 2011 2:54 pm

Looking at getting a supercharger for the rover v8 with the weber 500 but not sure what will fit or best etc. How much roughly for a decent one and precautions before chosing.

kiwicar · Post by **kiwicar** » Fri Oct 07, 2011 9:23 pm

Hi
if it has to be used with a 4 barrel then it looks like you are stuck with a roots blower, therefor a 3-71 or a 4-71 depending on engine size and how much boost you want, budget between £2000 and £2500 for a kit ready to bolt on.
If you are prepared to go away from a 4 barrel then a centrifugal blower is much smaller.
Best regards
Mike

topcatcustom · Post by **topcatcustom** » Sat Oct 08, 2011 10:23 am

You can use a different type of charger and make/get a top hat type plenum for your carb, this would make it blow through but you may have to modify the carb and personally I'm not really a fan!

As Mike says, with a 4bbl you don't have many options and GMC blowers are bloody huge.

kiwicar · Post by **kiwicar** » Sat Oct 08, 2011 6:06 pm

Hi Tom
yes I know quite alot of american set ups are blow through 4 barrels, just they are such a lousey solution to getting fuel into an engine that I don't even consider them an utter bodge!
if it has to package into a small space then s centrifugal blower, injection fueling and megasquirt would be the best solution, otherwise just cut a big hole in the bonnet, can't think of anyone who would use that as a solution

best regards
Mike

kiwicar · Post by **kiwicar** » Sun Oct 09, 2011 7:03 am

Hi Tom
looks like another "seagull" poster, flies in dumps something on the forum flies off never to reply to the thead he started.
Mike

topcatcustom · Post by **topcatcustom** » Mon Oct 10, 2011 11:08 am

kiwicar wrote: otherwise just cut a big hole in the bonnet, can't think of anyone who would use that as a solution

Don't know who you could mean!

Mongman · Post by **Mongman** » Sun Oct 16, 2011 7:32 pm

Was just a passing interest as i saw chargers on ebay saying they were for the rover v8 and curious how good they were. May just go for better cams and a few engine tweeks.

mgbv8 · Post by **mgbv8** » Sun Oct 16, 2011 9:29 pm

Mongman wrote:Was just a passing interest as i saw chargers on ebay saying they were for the rover v8 and curious how good they were. May just go for better cams and a few engine tweeks.

I tried that and it got expensive to find a few extra hp.... Cost me about £1500 on engine tweaks to get my old 3500 MGB V8 up from 130hp to 187hp.

But then I fitted a stock 4.6 RV8. This makes 202hp on the carb.
Then I fitted the GMC 4/71 blower and at half boost of 7psi she makes 350hp with 500 ft/lbs of torque.

Get a loan, fit the full blower kit and have some fun

Mongman · Post by **Mongman** » Wed Oct 19, 2011 3:10 pm

Don't tempt me. Getting inheritance next year and with the house and a new bike i'll be in a spending mood and some upgrade bits will be tempting.