my bro has a standard baykombi 1600 (with alternater) to go in his split panel. I think the motor is a 75 or something. I was thinking a turbo and some efi would make it alot more fun to drive.

Any ideas about the compression on this motor?

Also, what turbo, boost setting, exhaust (extractors), ignition (distributor) and computer would be the go to keep the engine reliable but fun?

I was thinking of a 4500rpm redline to keep it safe.

He hasn't got much cash so budget ideas would be good too.

And no carbies please, an intercooler will need to go on at some point.

dude your asking a lot my freinds turbo 1600 is a very budget street car and it eats cash like you wouldn't belive. It'sa draw thru to4 45 dellorto about 8.1 comp 009 with electronic conversion 1 043 head and 1 311 head 35.5 intake std exhaust D ported small non turbo cam sig erson 1.4 rockers we run 15lb of boost and about a 30 hp nitrous kit(it's home made) on street tyres it ran 13.34@ 100mph so it's making roughly 160 rear wheel hp.We should be at nambucca with the motor in a country buggy tha belongs at the tip or the brisbane jamboree.Best of luck

I am thinking of standard internals. surely the comp ratio is only around 8:1 to begin with. perfect for forced induction. I don't want ridiculous power, just a nice torque curve and a bit of a push in the back. surely the motor could handle that as long as it is tuned well.

try this link as I asked the same question not long ago.

http://www.aussieveedubbers.com/forum/viewthread.php?tid=22143#pid166768 

to Andy42,
thanx for the answer on the compression ratio

so did you end turboing the engine afterall?

[Edited on 28-4-2004 by pete wood]

I have not decided if I will turbo it or not yet. I had a turbo manx for a short while and it went like a shower of shit. And it only had a holden stromberg carby on it. But maybe i will get bored and just bolt one on and see how it goes

i have a T04 so it may be a bit big for it I was looking at prices today of some of the ones from the silvias etc and they are cheap as and should be plenty big enough. And yeh it went fast well for a vw motor anyway:vader

Just my two cents, if you are looking at doing it on the cheep, I have used a 1 3/4 inch SU carb (cheep from any wreckker) on a 12A rotary (in a series 1 rx7), the carb (according to one of the english turbo guide books) flows enough air/fuel for 180hp in a drw-thru setup, and in practice it worked well.
We had no probs on the dyno, just needed to file the needle to get the a/f ratio right. No need for an intercooler (vaporisation of the fuel keeps things cool), can add water injection easily (I did) if you realy get serious.

I have seen a SU sidedraught on a 1600single port, it was in a trike running 12 second 1/4s. Not sure of the HP but a nice simple combo that works well.

Just be careful with which turbo you run - they need to have the right type of shaft seal in them, else you run the risk of fuel getting into the turbo oil and stuffing up your bearings.

thanx for the tips guys, but I really want to use efi.
It makes precise tuning far easier and allows less chance for detonation.
detonation = very bad :puke

If anyone can think laterally about a cheap efi set up it would be good.

Pete

For cheap efi check out the enormous thread Ratty started, that he still adds to every once and a while:
http://www.aussieveedubbers.com/forum/viewthread.php?tid=15209 

Turbo idea sounds good

Cheers
Jeremy

Hey Pete,

Just read this thread from the top and noticed that there wasn't realy any answers to your comment that "I don't want ridiculous power, just a nice torque curve ".

Well I was talking to a local speed shop owner and the idea of developing a low reving torquey engine was discussed. Top end HP not being the goal...

So.. forget about transplanting a ca18 nissan t25 or mitsubishi td04 turbo from petrol engine car. You'd end up with a engine that wouldn't start making boost till 2500 RPM, and not hit full boost till abut 3400, and then you'll be wanting to rev it to 6.

Instead get a turbo from a 2-2.5lt diesel. Ideally look for a VNT turbo but otherwise, and most importantly, go for a small turbo. A 0.3-0.4 exhaust AR, and a 0.45 compressor.

Keep in mind that most diesel engines start making boost aroung 1000 rpm, so torque is going to be great from say 1500 to 4000 RPM. It would drive as though you had a 2.4lt engine, with no lag.

As for EFI, i'm afraid there's no such thing as cheap. From my experiences, cheap is what is tried three times without success before doing it the right way. Don't be cheap on your efi, or you just pay for it later.

Best to get something that people in your area know how to tune(and support for when you have problems, and you will!). Whether that be motec, haltech, microtech, autronic or wolf. All can produce great results if the tuner knows what they are doing. People you will talk to will tell you one is better than another, but it all just comes down to shop product preference and what training the tuner has been exposed to.

Good luck, turbo vw's are a blast to drive!

Ian, thats such a good point, a diesel turbo would be perfect for low down power... I'm going to start another thread now so as not to hijack this one with whats running through my head atm.

Go here and have a looksi. The systems work OK but a better ECU and good dyno time would make a big difference.

http://www.cbperformance.com/catalog.asp?ProductID=286 

Go here and have a looksi. The systems work OK but a better ECU and good dyno time would make a big difference.

http://www.cbperformance.com/catalog.asp?ProductID=286 

I have a kit that Shimo of Hellbug developed. It uses the Weber DMTT carby, an IHI turbo off an Isuzu Diesel truck, custom exhaust system and remapped dizzy. Turbo sits underneath the rear parcel tray next to the gearbox. Good for 14.2 secs with 1835cc B+P's and stock internals as it only revs to 4500rpm. Shimo told me it gives the car the torque of a V8.




Steve

so are ya gunna sell it ???:thumb:thumb

Nope its not for sale anymore as I am putting it in my Cabrio. It is worth about $2500 but I think if you hunted down the parts you could replicate it pretty easy. There was a DMTT on here not so long ago for $400 I think.

Cheers

Steve

Hmmm....might source some parts...don't need a carby as i have fuel injection happening on my "project"

A bit more info for the EFI debate....

http://members.shaw.ca/sharkeysgarage/EFI.html 

Its all about air cooled VW EFI and turbo systems...

Might be useful in helping make some usefull decisions. James, the guy who wrote the review (and the website) realy knows his stuff, and is somewhat of a guru as far as turbo's vw's go. Check out his custom intake manifild system. In one word "Awesome".

Cheers,