Stainless steel heater exchangers for a 930 turbo

[Guest SEE YA]

Hello all next year I think my ones may need replacing so looking into cost now etc, Also could it be a DIY job as well, how long would it take to do the job.If I did not have the time how much would it cost to get them fitted ?.

 

Thanks for any help .

 

SEE YA

[flatsix777]

Hello all next year I think my ones may need replacing so looking into cost now etc, Also could it be a DIY job as well, how long would it take to do the job.If I did not have the time how much would it cost to get them fitted ?.

 

Thanks for any help .

 

SEE YA

I just fitted a S/S Dansk muffler at around £545. H/E's were around £360, again S/S Dansk, although mine were good. You'll also need to remove the cross-over pipe between the two exchangers so probably a false economy not to replace (not sure on cost but it may be common to SC's & 3.2's). You can leave the intermediate pipe, on which your turbo & wastegate mount, in situ unless it's past its best. If this needs replacing, then its minimum £460 if things go well. All Eurocarparts and VAT ex.

 

Difficulty and time for the job depends on how corroded your fasteners are and whether they can be removed in tact. Any IB is awkward but 930's have a reputation for being much more difficult on account of the higher temps. This was my experience. I think its essential to use proper heat to remove the H/E nuts (to head) and would assume that many other fasteners have to be cut. This job has the potential to go bad quickly so best not to cut corners. I'd only recommend that you take it on if you have all the right kit and are confident that you can sort any issues that arise. You might be lucky and find that everything looks newish and comes apart easily. Worth doing a search on Pelican as lots of information specific to 930's.

 

I think best case is a 3 hour job at a specialist with a cost of around £1200 (inc VAT & parts). If something shears or if the intermediate pipe needs to come off then lots more time and lots more cash.

 

Good luck

David

[spuggy]

Hey SEE YA!

 

What's up with yours, are they leaking exhaust into the cabin? Or just no heat (have you checked the hoses haven't slipped)?

 

The factory stuff is stainless, right? (mine couldn't possibly have lasted 30 years otherwise, surely?)

 

I have a complete '78 RoW (I believe RoW are identical '78 through '89) set of factory heat exchangers, cross-over pipe et al (to say nothing of turbo, wastegate, sump tank), good usable condition (85,000 miles) if you wanted to stay stock.

 

I would, however, heartily recommend GHL, the design is clearly an improvement over factory, the quality is astonishingly good (221 stainless throughout, NOT the lesser 201 stainless), the welding is a work of art, they're polished and shiny and look tremendous.

 

Added to which, Brian Gerber is very helpful and they build boost much faster and predictably than the stock system because they're far less restrictive - especially with a modern K27 variant. Absolutely transforms the car and the way it drives.

 

They do boom a little more around 3000-4000 than stock, even with a factory muffler (I think it's through the walls of the headers themselves), but I like the sound - and it's a pretty clear indication that this isn't a Covin in your rear view...

 

They're not cheap, but they are very nice indeed. My only niggle is that they don't postively blast heat out of the cabin vents like the factory ones did (no blower in the engine bay for a '78). I can deal with that, if that's the price for .5 bar @ 2,500 RPM...

 

With the exchange rate, they'll cost a fraction of what a factory system would (they wanted 1800!!! POUNDS! POUNDS! Are you serious!! for the stubby little wastegate muffler when I asked OPC Guildford last year!).

 

Few (or none) of the other high-end brands available for 930's are apparently made in the US anymore, and there's been a lot of discussion on Pelican how customer service, delivery, fit and everything else has suffered. Not to mention people complaining that they have to replace them after a year or two, because they crack, sometimes inside the H/E box. Someone even said that the design is what causes them to crack there. Nice...

 

Or you could buy the very cheap headers from Going Super Fast or OBX/Schnelle, which, at the price, a lot of people find very tempting for what certainly appears to be a disposable item if you're buying low-end. They all seem to be the same part, but GSF has them available with heat for a few $100 US more.

 

Read a few threads on PP and see what you think, it's worthwhile because it's pretty a substantial step, I think.

 

 

The main obstacle for DIY is the fact that the exhaust studs get very, very, very hot (duh! because the EGT is 1650 degrees, perchance?) and can be a total pig to remove. They neck down and the threads disappear completely (like the ones on my wastegate did, which don't even look like fasteners anymore).

 

If not done correctly (penetrating liquid over a period of time, heated cherry-red and faaaaast (with oxy) and shocked with an impact wrench seems to be the concensus), they're very prone to break off flush with the head - i.e. if you just soak with oil a couple of days and then use a breaker bar and give it some elbow.

 

And then you would need to suck up to David on this board, because I think he broke one or two when he did his and bought the pukka jig to drill out the old stud properly.

 

If they've been disturbed/replaced recently, it may not be that big of a deal. If they're original, I wouldn't touch it unless you're very gung ho and have all the tools and the inclination to spend up to a day or two under the car.

 

Oh, and you'll certainly be dremeling the wastegate and the turbo fasteneres off the old system, if they're been on there very long. Fun, fun, fun!

[Tripe]

Such words of comfort from the wise ones

[Guest SEE YA]

Such words of comfort from the wise ones

 

 

 

Thanks guys you have all been a big help.

 

SEE YA

[spuggy]

Hey SEE YA, if you've not been reading Pelican closely, thought I'd mention that Ben (mb911) is putting a kit together to use SSI HE's on a 930.

[Guest SEE YA]

Hey SEE YA, if you've not been reading Pelican closely, thought I'd mention that Ben (mb911) is putting a kit together to use SSI HE's on a 930.

Thanks will check it out .Will be off line for a 10 days away on leave to sunny Spain I hope .Have put a topic on there to ask for input.

 

SEE YA

Edited August 1, 2007 by SEE YA

[Guest mb911]

Thanks will check it out .Will be off line for a 10 days away on leave to sunny Spain I hope .Have put a topic on there to ask for input.

 

SEE YA

 

 

yeah we are still awaiting all the various parts fromm ssi but once we have them we will be welding up bolt on kits and be very reasonable for cost.. stay tuned and whatch the websites

[Guest SEE YA]

yeah we are still awaiting all the various parts fromm ssi but once we have them we will be welding up bolt on kits and be very reasonable for cost.. stay tuned and whatch the websites

 

 

Thanks please get it touch with me you may have an order from me should you wish .

 

SEE YA