carb on a spi engine ? |

monkeyjim
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The Mk1 59-67, first and best Mini . 10's rule .

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carb on a spi engine ? Jul 15, 2008 18:05:56 GMT

Quote

Post by monkeyjim on Jul 15, 2008 18:05:56 GMT

Forgetting the mot rules regarding fuel injection and cats for a moment .

I am right in saying there is no reason why the injection system on the SPI engine could not be replaced by a carb ?

The SPI still has a coil , although no wire to the dizzy and its missing the temp sensor in the head .

Dont need to be asked why , just want to know if it is possible as i think it is.

D

paul1275s Mini Pickup Precision Engineering- with an Angle Grinder Posts: 904	carb on a spi engine ? Jul 15, 2008 18:12:50 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by paul1275s on Jul 15, 2008 18:12:50 GMT I've definitely seen and heard of it being done on an SPI, do they not run a dizzy then? The block is the same as a carb car isn't it, not like the MPI. Single HIF44, would be just like my Mainstream.
	How many minis is too many?

monkeyjim Paid Up Member The Mk1 59-67, first and best Mini . 10's rule . Posts: 3,674	carb on a spi engine ? Jul 15, 2008 18:19:35 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by monkeyjim on Jul 15, 2008 18:19:35 GMT they run a dizzy. The mpi blocks are indeed differant to all other blocks.

paul1275s Mini Pickup Precision Engineering- with an Angle Grinder Posts: 904	carb on a spi engine ? Jul 15, 2008 18:29:52 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by paul1275s on Jul 15, 2008 18:29:52 GMT peice of wee wee then
	How many minis is too many?

monkeyjim Paid Up Member The Mk1 59-67, first and best Mini . 10's rule . Posts: 3,674	carb on a spi engine ? Jul 15, 2008 18:31:02 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by monkeyjim on Jul 15, 2008 18:31:02 GMT i

Rachel Mini Mk3 Cooper S Only a ginger can call another ginger, ginger Posts: 2,441	carb on a spi engine ? Jul 15, 2008 18:46:40 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Rachel on Jul 15, 2008 18:46:40 GMT Bogey's engine came from Gav's cooper which I think was a SPI I will check ;D

Rachel Mini Mk3 Cooper S Only a ginger can call another ginger, ginger Posts: 2,441	carb on a spi engine ? Jul 15, 2008 19:46:50 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Rachel on Jul 15, 2008 19:46:50 GMT You can't use the head off the SPI as it doesn't have the take off for the transducer for the temperature gauge. Everything else can be used.

paul1275s
Mini Pickup

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Posts: 904

carb on a spi engine ? Jul 15, 2008 19:52:46 GMT

Quote

Post by paul1275s on Jul 15, 2008 19:52:46 GMT

Jul 15, 2008 19:46:50 GMT Rachel said:

You can't use the head off the SPI as it doesn't have the take off for the transducer for the temperature gauge.

Everything else can be used.

I'm sure that is nothing that a drill and tap couldn't sort out.
Where does the spi sense it's temp then?

How many minis is too many?

Rachel Mini Mk3 Cooper S Only a ginger can call another ginger, ginger Posts: 2,441	carb on a spi engine ? Jul 15, 2008 19:55:42 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Rachel on Jul 15, 2008 19:55:42 GMT No idea I was just quoting Gav ;D He changed the head on Bogey as it was the easiest way. He did say it can be done with the head but more complicated ;D

Miniböttcher Administrator Posts: 2,550	carb on a spi engine ? Jul 15, 2008 20:01:17 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Miniböttcher on Jul 15, 2008 20:01:17 GMT dont mg metro thermostat housing have temp senders in them, normal a plate between the head and the housing, i think or a bit pricey but it sorts the problem. www.minispares.com/Product.aspx?pid=33054

monkeyjim Paid Up Member The Mk1 59-67, first and best Mini . 10's rule . Posts: 3,674	carb on a spi engine ? Jul 15, 2008 20:20:36 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by monkeyjim on Jul 15, 2008 20:20:36 GMT the car gets its reading via a sensor in the inlet manifold. there is no temp gauge take off in the head so i was thinking the metro set up would be the way to go to.

Simon1275mpi
Mini VTEC Conversion

Posts: 2,578

carb on a spi engine ? Jul 15, 2008 21:28:36 GMT

Quote

Post by Simon1275mpi on Jul 15, 2008 21:28:36 GMT

www.theminiforum.co.uk/forums/index.php?showtopic=32832&st=0&start=0

Few issues to sort, a feed to the coil, replace the dizzy with a metro or late mini dizzy, fuel tank and pump, coolant temp sensor and bolting on a carb.

Easy

'Mininutter'... Projects abandoned in the lockup, A, Y & G

paul1275s
Mini Pickup

Precision Engineering- with an Angle Grinder

Posts: 904

carb on a spi engine ? Jul 17, 2008 14:58:49 GMT

Quote

Post by paul1275s on Jul 17, 2008 14:58:49 GMT

You could use the existing fuel tank easy enough, just blank off the return. Surely you could also use the SPI fuel pump? If it can supply petrol for the injection it will have enough oomph to feed a carb. Maybe a fuel pressure regulator required?

How many minis is too many?

MiniGT5 Administrator Supercharged Baby! Posts: 3,106	carb on a spi engine ? Jul 20, 2008 9:51:23 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by MiniGT5 on Jul 20, 2008 9:51:23 GMT I have a spare carb tank if you need one. N :-)

MiniHaven
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carb on a spi engine ? Jul 20, 2008 21:59:15 GMT

Quote

Post by MiniHaven on Jul 20, 2008 21:59:15 GMT

injection tank pump works at about 6lb sq inch ,not sure if a float valve can stand that ? dont block off the return just loop it and have a take off to the carb, sorted lower pressure just right ,,,,,,, till tank filter gets chogged up.