Alternative turbo placings?
Turbo Mini Forums

I've done some reading in the Vizard book. I saw the 7 enterprises turbo kit, and the Janspeed. Both put the turbo elsewhere then the metro turbo set-up. Any other alternatives? I'd like to keep the bulkhead intact, but fit a GT22 turbo (and intercooler and megasuirt'nEDIS EFI).
Thanks,

Hugo

Hugo

*** 1989 Jet Black body stripped for resto ***
*** 1988 Metro engine undergoing turbo conversion ***
*** 1989 BMW 318iS as daily run-a-wreck ***

you can put it wherever you like dude seeing as you'll be making the new manifolds for it anyway.

Over the clutch housing is ideal. There is space here, it's away from the carb and the Turbo gets a good cold air feed.

Phil.

WWW.TURBO-MINI.COM

injection is an issue on the a series. do a search for a thread on here explaining the reasons why.....

hth,

Pete

And on the 7th day........... God created turbochargers!

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=2348

And on the 7th day........... God created turbochargers!

Thanks for the replies. I think I'll bolt it to the clutch housing, just have to think of a way to keep the clutch slave cylinder cold....

I'm aware of the siamese port injection problems, but I'm not too worried. I see the programmable EFI as an easy to tune carb without needles. TBI will not be better or worse then the carb, just easier to tune.

Now to weld a manifold.....

Hugo

Hugo

*** 1989 Jet Black body stripped for resto ***
*** 1988 Metro engine undergoing turbo conversion ***
*** 1989 BMW 318iS as daily run-a-wreck ***

The slave cylinder on the Janspeed engine is mounted on the back of he block where the fuel pump hole is. The clutch is operated by a long rod.

Phil.

WWW.TURBO-MINI.COM

has anyone considered or done an alternative fuelling method successfully or a 16v head ardon 8 port etc

if it doesn't worry you, then you don't fully understand the problem in injecting the A-Series...
Megasquirt won't perform miracles just because you built and can map it yourself, the problem is that the carb does a half decent job of supplying fuel, when the engien demands it. EFI always injects the fuel at the same time - or in the A-Series - the WRONG time!

D

i'de listen to what dave has to tell you mate, he knows what he's on about concerning injecting the a' series turbo,
DAN :)

Hugo

*** 1989 Jet Black body stripped for resto ***
*** 1988 Metro engine undergoing turbo conversion ***
*** 1989 BMW 318iS as daily run-a-wreck ***

Take offence?????????????
Why matey - I was just pointing something out! Remember that we're all sat here behind our little PC's and could be anyone/any knowledge, and there is a lot of that on the net!!! Reading again my statement, I came across as a bit of a 'know it all' and that's not very clever at all, so I apologise for that.

Your aim seems to just be to get the thing to run, such that you can adjust fuelling from the comfort of your laptop, which is a good way to go I guess.
OF course having EFI does mean you don't need a plenum restrictor, so that'll help power anyway.
One thing i would suggest is that you keep he camshaft very mild, or maybe stock - certainly this will help minimise the effect of the charge stealing.
Something else worth looking into was the camshaft on the MPi... Marcel Chichak believes - and it makes sense looking at the figures - that the MPi cam had reduced overlap to further reduce the problem... No hard facts or figures to back that up, just a suspicion! LOL!

Are you going to use the Mini SPi throttle body? There are a good few tweeks you can do to these to get them to perform a lot better!!!

OK, offence is maybe too strong, too. What's a mild version of that in English?? Anyway:
I'm planning on using an SW5, normal rockers, 1293 rebore, 8:1 CR, and I have a GT22 turbo. (http://www.turbobygarrett.com/turbobygarrett/images/Leaflets3_1.jpg)
(http://www.turbobygarrett.com/turbobygarrett/jsp/downloads.jsp#)
I'm fabricating an inlet manifold using an Opel (Vauxhall) TB, with one (or two simultalious) injector. With the pic in this threat, I think I'll fabricate an exhaust manifold to do the 'janspeed' position turbo. First stop would be 100 bhp, next 120. Who knows where it will end... Probably by blowing a diff or gearbox...

Hugo

Hugo

*** 1989 Jet Black body stripped for resto ***
*** 1988 Metro engine undergoing turbo conversion ***
*** 1989 BMW 318iS as daily run-a-wreck ***

I had a chat to a bloke involved in Abingdon ST. he was mucking around with fuel injection on Weslake heads (8 ports) and said that a supercharged one of those was the way to go. For some silly reason (not classes) they built it around a 999 engine. It ate everything for breakfast and destroyed itself every month. I think they were using Tecalamit Jackson FI.

If you were running suck through, I doubt you would see much difference with an injector rig. But then again, I know jack shit about injection.

The Complan mini had a turbo mounted somewhere up by the bulkhead and the exhaust came out of the bonnet.

This old bloke I know was talking about Abingdon like they just got paid to build stupid machines. I think they did a V8 Maxi or something like that.

He has a real alternative view of blowing engines and had some very unorthadox ideas which got around 100hp out of a stock 850 van engine. (which lasted about 1000 miles)

Bugger off, I'm getting there.

Well, to give you gyus an idea there was a story in either Hotrod or Popular HotRodding where they fitted a turbo in a late model Camaro. The real eye opener is that it was mounted where the rear muffler (silencer in UK) was located. Just get rid of the muffler, fit the turbo there, suspend it, run a long tube back to engine, fix, oil feed and return with a pump and off they went. They ran wild boost setting of 7 psi max and quoted a lot of extra power. I KID YOU NOT !!!!

no news about 16v or alternate heads?

there is a BMW motorcycle head for sale in german ebay...

link?

And on the 7th day........... God created turbochargers!

Phil where is the oil drain on the Janspeed setup?

aelx

AlexF

Here you go.

Phil.

WWW.TURBO-MINI.COM

cheers phil

AlexF

With regards to funny heads, I have heard that the K1, K1000 bike heads valves are too small. Much smaller than the KAD road head. I suppose that is why Bruno Raoille (sp?) did a 970 engine with one on. I think he was one of the first to do it. I have heard people using Corsa 1.2 heads (rumoured). Minispares have a funny OHC thing by Howley which according to Keith "Is in a container somewhere".

The BMW idea inspired me for a while and then I thought it was just shit.

I like the idea of an 8 port and I know an old pattern maker who is building his own foundry. I have got my drawings and am ready to rock. Sadly, he isn't yet. (Another bloke with too many projects). Incidentally, when I put out feelers for anyone with an old weslake 8 port to come forward, so that I could look at the design, I had a rather mafia style email from the owner of the design. Basically, I make a Weslake copy (my intention), I will find my ass in court. Of course, I could have bought one of his expensive heads.

Anyway, one project at a time........

Bugger off, I'm getting there.

IIRC the valves are 26 mm intake, 20 or 21 mm exhaust (I believe KAD valves are about the same). Small yes, but there are 2 each. So total valve area exceeds that of any big valve head. Add that to smallish ports and there is a good recipe for a fast flowing induction. If you need exact dimensions I can measure the valves of my K1100 head.

There are a couple of runners in USA that were done in the 80?s using 8-valve head, I am not sure whether Bruno?s 970 ever ran.

As for "just shit", everyone is entitled to an opinion. I like the engineering challenge and have actually completed several challenges