I'm gonna turbocharge a 1.5 dont try and stop me

[Hiho]

Hello all.

I'm new to the forum but have had diesel golfs for a couple of years now. I have just bought a great new 1978 GLD that is going to be turbocharged.

Its 1.5 NA

Now before you all advise me not to, I must say that unfortunately i have little choice as the 1.6TD was never released here. And from reading posts on this forum, it appears that there are some benefits from using the 1.5 in terms of top end (for a diesel anyway).

What I would like to know is what I have to do to the internals to make it reliable and turbo tolerant? Will longer head bolts do or will i need to go to longer and larger 12mm bolts? Do i really need oil squirters? Does any of this make a difference?

Also, what parts do i need to bolt onto the outside? Whats the best injector pump? Can i add the LDA from a 1.6TD pump to the 1.5NA pump? Can i simply use a 1.6TD pump?

What turbo should I use? I intend to intercool and have a decent exhaust

At this point i should state my intention for the car. I would like driveability, reliability and economy, and a useable overdrive (.76). I am not a drag racer, but I do like to drive spritely on a windy road in the hills.

Should i buy a kit like those sold on ebay? Does anyone have any experience with these kits (sold by prothe)?

Any experiences or advice is welcome.

Thanks

Matt

[Baixo]

Where are you from?

you can use all theese parts from a 1.6 gtd,  injection pump, injectors, intake manifold, oil pan, oil lines (both feed and return), oil filter housing (maybe), exhuast manifold, turbo (k14 is your best bet, k24 for more top end boost)

oil squiters will make a difference in longevity, but if your keeping boost low (15psi??, someone can chime in on that)), and possibly add a oil cooler you can get away without them.

but if your 1.5 is worn out and you are planning a rebuild, i would add them.

you can do some tweaks to your injection pump get some performance, but a rebuilt pump fully modified will give you the best performance.

the FAQ has lots of info on these subjects.

hth

[Rabbit on Roids]

ok, so, i have a 1.5 TD.. and im definitely not gonna tell you it wont work. i favor the 1.5's. if you arent going to throw tons of boost or fuel at it, just go with a stock gasket and head studs. might even get away with stock bolts, but studs are better. i dont have an oil cooler or oil squirters, but i do have a turbo oil pump. ive got a n/a fuel pump on mine ATM, and it gives the engine OK fueling. i really havent messed with this pump yet. and honestly.. if this engine can stand up to my right foot.. i dunno why anyone would be able to kill it. you can turn these engines so many rpm's that they actually start making LESS noise.

what kinda turbo you planning on putting on there? ive got a VNT 17 and it works quite well. im also running a gas intake manifold off a 92 jetta. it has long, tapered runners and a nice big plenum, less chance for pressure bias to # 2 and 3 cylinders. im running 2.5 inch all the way from the turbo to the flowmaster. you probably wont want to run a muffler, since most people on here prefer the str8 pipe.

theres plenty of other people on here with turbo 1.5D's. sauerkraut is another one running a 1.5TD. i dunno the extent of his build, but i know mine is really fun to drive.

if you got anymore questions, get at me, or sauerkraut, or any of us really.

As for the prothe turbo kit.. myself personally, i wouldnt buy it. its all cheap chinese made parts. and it comes with a 1.9 intake manifold. they have D shaped ports.. 1.5 and 1.6 have oval oblong ports. so obviously there is going to be turbulence in the intake. but if thats the only route you can go, then you can be a test guinea pig...  :twisted:

[1slowvw]

I will not try and stop you, but I will suggest pictures and progress reports when it happens. That's my final offer.

1SlowVW

[carrizog60]

why to stop you?
i have a 1.6mech n/a converted to turbo and i have made more than 100.000km running 2 bar(now 1.5 as the k24 is giving up).
changed to metal hg,external oil cooler and big i.c. in front.

still running as strong as the day i did the first ride

[RabbitJockey]

i agree the prothe kit is poo, its like a bunch of miss matched left over parts.

[Hiho]

Hello again,

Im in Australia, land of the long tooth Golf. Heres my new project. It came with GTI grill and completely stuffed electrics. I suspect that the previous owner roll started it with no oil in the sump (leaking drain plug) so maybe the motor is no good. I have checked the cam timing, valve clearance, fuel supply and glow plugs and it still doesnt start. Next I'll check the IP timing then maybe try to roll start it. If it has excessive blowby I will rebuild it with turbo in mind





The car came with a parts car that is actually in good shape, original paint so the rust you see is the rust you get, which isnt too excessive. It just isnt as pretty as the other.





My next purchase is a 020 box, decent springs and shock absorbers, rear swaybar and decent rims/tyres. THat is, if i can get at least one of em running!

[hamradio]

Those are some of the most trashed strut bearings I've ever seen.  :wink:

[Hiho]

Would the 92 gas Jetta inlet manifold look something like this?

[TurboJ]

It would, I guess.
Anyway, that manifold will be a huge improvement on your TD.
Don't even consider using a stock intake if you have one like that at your disposal!

[Rabbit on Roids]

same mani i got on my car. good work.. now take off the throttle body, build an adapter, and hook up the boost from the intercooler. i just got my car driveable yesterday with the intercooler hooked up. and let me tell you what, its by far the best upgrade yet. more power with less boost. im gonna put my other fuel screw in later and mess with that a bit. the way this is going, ill be back to a straight pipe in no time.

[79rabbit4dr]

now take off the throttle body, build an adapter...

does anyone sell an adapter? can you post pic of yours?

[truckinwagen]

same manifold, just opens on the other side, I had the plate cut out of 1/2 inch mild steel on a plasma table(something thinner could be just as easily cut with a holesaw and/or a cutting torch) and welded a exhaust coupler into it for the intake plumbing.

[Rabbit on Roids]

i made mine out of some quarter inch aluminum and some thick wall aluminum pipe.

[vanbcguy]

Do you have to flip the turbo to get this to fit, or can you just bolt it up?