metro turbo manifolds fit onto...

Post by **aussiemike** » Wed Sep 17, 2008 12:21 pm

hi guys, will the inlet and exhaust manifolds from a metro turbo fit onto a 1098?
cheers, michael.

Post by **bmcecosse** » Wed Sep 17, 2008 12:52 pm

Yes - best if you accurately match up the ports of course - or put a 12g940 head on the 1098. If you intend to 'turbo' it - you should use a 12g940 'turbo' head anyway - with the sodium cooled exhaust valves.

Post by **superchargedfool** » Wed Sep 17, 2008 1:20 pm

now thats a good idea.

1098 turbo running low boost would be cool.

should be very easy with all metro bits.

boost will have to be low and will probably only make as much power as a standard 1275 but it would be different.

good luck

Post by **aussiemike** » Wed Sep 17, 2008 2:44 pm

excellent cheers for the advice guys!!!!! so all i need now is a 1098.............like the idea of it too.
cheers, michael.

Post by **bmcecosse** » Wed Sep 17, 2008 8:22 pm

Err - it's a pretty weak engine - don't expect miracles!

Post by **aussiemike** » Wed Sep 17, 2008 8:50 pm

MIRACLES.....nope, just a wee bit of fun. if i wanted miracles it would be a much larger engine and pronbably not made in the uk.....
and only 4 or 5 psi would yield a few extra hp as well as a bit more fun and a challenge.
cheers, michael.

Post by **bmcecosse** » Wed Sep 17, 2008 8:56 pm

I think it would be a miracle for a 1098 to last more than a very few minutes at 5 psi boost!

Post by **superchargedfool** » Thu Sep 18, 2008 9:41 am

bmc is correct 5 psi would be optimistic.

3 to 3.5psi would be more sensible.

metro turbo only ran 4 psi as standard if I remember correctly?

still a good idea to be different though. And when it blows up you could slot in a 1275 for real fun.

Post by **aussiemike** » Thu Sep 18, 2008 10:52 am

well it looks like i may have located a 1275 so dont ned to worry about me in a ball of 5psi flames now

i really like the idea of building something hat isnt the fastest thing around, but built well and is reliable as can be.
oh and how important is the turbo dizzy from a turbo metro??? are they that mush different?

Post by **JimK** » Thu Sep 18, 2008 11:01 am

aussiemike wrote:oh and how important is the turbo dizzy from a turbo metro???

Pretty vital, if you don't want fuel spraying everywhere.

are they that much different?

Not fundamentally different; The turbo carb has seals to cope with the pressure of the turbo blowing through it. I think there are other differences but that's the most important one.

Post by **morrisman1** » Thu Sep 18, 2008 11:06 am

is it possible to fit the whole 1275 A+ turbo engine in? they had 90hp. that would be the ducks nuts! i should turbo a datsun a15 that i have here and drop it into a morry!

Post by **Stig** » Thu Sep 18, 2008 12:28 pm

JimK wrote:
aussiemike wrote:oh and how important is the turbo dizzy from a turbo metro???
Pretty vital, if you don't want fuel spraying everywhere.

Erm, that was dizzy, not carb! Very useful info though.

I'm guessing that the advance curve is different for the turboed engine so a standard distributor might cause pre-ignition. Maybe no vacuum advance too?

Post by **aussiemike** » Thu Sep 18, 2008 12:53 pm

hmmm thst was what i thought too.
cheers, michael

Post by **JimK** » Thu Sep 18, 2008 1:41 pm

Stig28 wrote:Erm, that was dizzy, not carb!

So it is. I'll crawl back into my corner and go back to sleep...

Post by **aussiemike** » Thu Sep 18, 2008 3:16 pm

no orries jim, kinda figure
d what you meant anyhow, and all contributions to this help thread are apreciated.
cheers, michael.

Post by **bmcecosse** » Thu Sep 18, 2008 4:48 pm

The turbo dizzy has very little advance curve - at high revs the advance needs to be cut back to stop pre-ignition. So yes, I would say you need that turbo dizzy. You really would be much better using a supercharger rather than a turbo! And no - it's not possible to fit a Mini engine to a Minor - not without serious modification anyway, the least of which is a crankshaft change, which means you lose the Turbo hardened crank, and it's there for a very good reason.

Post by **aussiemike** » Thu Sep 18, 2008 5:05 pm

so can the crankshaft out of a metro turbo engine be modified to fit into a 1098 or a 1275 for rear wheel application?? and if yes, ....how...?
cheers, michael.

Post by **bmcecosse** » Thu Sep 18, 2008 5:14 pm

NO! It has a completely different flywheel mounting. The Mini flywheel sits on a taper end - with the clutch sitting ahead of it on a 'Primary Gear' that rotates on the crank when the clutch is 'out' but is locked to the crank when the clutch is 'in'. You can however have a 1275 'inline' crank hardened by Tuftriding - but it all costs money, and it will need regrinding afterwards. Ideally - it should be reground slightly oversize, then tuftrided, then ground again down to the final size. Expensive!

Post by **superchargedfool** » Fri Sep 19, 2008 9:49 am

1275 supercharged is the way to go but turbo is awsome because of noise and style of boost.

The turbo dizzy has very limited advance. The maestro dizzy is what I am using with a blob of weld strategically placed in the dizzy to limit advance.

Vizard states that roughly 1 degree of advance needs removing at revs for every 1 psi of boost. My dizzy advanced about 20 degrees and I limited it to about 12 degrees, that was more than I needed to but is on the safe side!

Good luck.

Post by **aussiemike** » Fri Sep 19, 2008 1:34 pm

so why is it bettr to supercharge than turbocharge????
oh and cheers for the dizzy advice, michael.