15 replies to this topic

[Andy_Jansen]

Hi

I am thinking of putting a supercharger on my engine.
Seems to me that the kit available on the market are pretty expensive and I want to build the kit myself.

Does anyone of you have pictures of the inlet-manifold?
Or can I buy the inlet manifold separatly from the entire kit somewhere?


Thank in advance

[biggav]

there is a reason why it is expensive!! the only way would be to "copy" someone elses purchased one but then i don't know what copyrights they hold on them. I have been looking (dreaming) at the jonspeed kit which is the most cost effective one i have seen.. maybe when the car is back on the road....

[smith1380gt]

Stuart at VMAX now sells all the parts a la carte. So you can buy just the inlet manifold, if you have everything else.
Not cheap, but you know it'll work and save you a lot of time and effort.

If you still want to make one, I'll grab a pic of mine over the weekend. It's basically a single U bend on a flange with about
20mm of straight section vertically off of the middle to a flange that bolts to the Eaton M45. Simple enough, but you have to have
everything positioned properly for the belt drive...

[nobbycameron]

hello im doing the same any piccys of the manifold would be very helpful

cheers

[Leigh Roberts]

again same as above have a Eaton 45 but need to locate the rest of the parts, anyone know what other bits ill need off the top of their head?

am also looking to run it on an IDA downdraft weber any examples around of this????

[nobbycameron]

again same as above have a Eaton 45 but need to locate the rest of the parts, anyone know what other bits ill need off the top of their head?

am also looking to run it on an IDA downdraft weber any examples around of this????

parts needed

supercharger
new crank pulley with extra belt width
belt
inlet manifold from sc to head
tensioner
decompression plate (and two head gaskets) or open up chambers to lower comp ratio
manifold from carb to supercharger
needle and tune up

think thats the main things anyway, i will be running a hif44, have not seen anybody use a downdraft ida, dont know where/how you would mount it. I dont realy think there will be much if any gain in fitting an ida, correct me if im wrong but the nature of the super charger sucking through the carb will mean a bigger carb wont effect the amount flowing through it, well to a certain extent.

regards

[Sam Walters]

am also looking to run it on an IDA downdraft weber any examples around of this????

why bother if your going to go to all that effort you might aswell do it with a r1 carb or something.

oh and nobbycameron its going to cost you roughly the same to open up the cylyder head, and it will develop more power, because a decompression plate has the same effect as running the pistons lower in the bore to get the compression down.

[nobbycameron]

am also looking to run it on an IDA downdraft weber any examples around of this????

why bother if your going to go to all that effort you might aswell do it with a r1 carb or something.

oh and nobbycameron its going to cost you roughly the same to open up the cylyder head, and it will develop more power, because a decompression plate has the same effect as running the pistons lower in the bore to get the compression down.

im reluctant to open up the head straight away, if for any reason i dont like the super charger or cant get it to run right etc then i want the option to take it all of and go back to the way it is now, if i open up the head chambers then it cannot be changed back to the way it is now. However if it all goes to plan and i get it runnning right and im happy with it then opening up the chambers is the way to go with out a doubt.

[smith1380gt]

I still have to take some pics for you guys. This is far from a bolt on affair, as I'm finding out.

1 If you are supercharging a 1275, the timing cover needs the breather cut off, and the hole plugged.

2 Gearbox breather needs to be modified as well to clear the pipe to the carb.

3 Electronic Fuel pump Facet or similar required to supply fuel if you're going above 100 or so HP.

4 can't run an ultimate engine steady on the radiator end of the motor as it fouls the belt.

5 O/S motor mount needs to be notched to clear larger crank pulley.

6 Need a minimum 2 core super cool rad to deal with the extra heat.

7 Need to re route the heater hoses due to no longer having a heated inlet manifold.

8 Need longer choke and throttle cables due to new carb location

9 Re route the fuel lines to new carb location

10 And of course, lower the compression to less than 8.5 to 1 either with spacer plate or larger chambers, or super dished pistons.


by the way-
I have 2 decompression plates at the moment that I may not be using as I bought a 26cc Avonbar head-- one is for a 998, 6cc and the other is for 1275 11cc--- might sell them both.
Also have an extra charger to carb pipe

[R.S.P]

Heres some pics of the manifolds

Also supercharger needs to be modified

[In-a-mini]

yeah i seen they machine flat the inlet and drill and tap it for 4 mounting bolts fot the flange of the inlet pipe (between carb and supercharger)

[nobbycameron]

hello, thanks for the pics thats very helpful, just wondering whether the exhaust manifold needs to be modified aswell? cus it looks like it could be quite tight to me???

regards

[Supercharged_clubby]

hello, thanks for the pics thats very helpful, just wondering whether the exhaust manifold needs to be modified aswell? cus it looks like it could be quite tight to me???

regards

Sure does!

[miniandy]

I've also been looking into making a inlet manifold to fit M45 supercharger.

I've been looking at the Mangoletsi inlet manifold



thought about cutting a plate to fit supercharger then fit the plate to manifold (sandwiched between gaskets)

do you guys think this would work?

does the supercharger manifold have to be drilled for a servo, if your brakes are servo assisted?

what modifications need to be made to the supercharger?

Edited by miniandy, 13 March 2008 - 10:21 PM.

[nobbycameron]

i was looking at doing it with one of those aswell, seems like a good idea to me. i think the only way of seeing if its possible is to buy one and offer it all up. The only reason i havnet bought one is that i cant seem to get one cheaper than 100 quid of ebay, they are quite rare second hand, good luck though and lets us know how you get on.

regards