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Author: Subject: Winter upgrades nearing completion, TURBO now on
mark chandler

posted on 1/8/09 at 06:50 PM Reply With Quote
I was surprised how easy it is to do, if I had known what I know now I would have stuck a turbo on some of my old cars.

The difference in performance is astonishing....

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T66

posted on 2/8/09 at 07:01 AM Reply With Quote
Over the last couple of years I have been slowly improving my 2001 Saab Turbo.

It was 210bhp when I started, its now 290bhp and extremely quick.

I have a lot of midrange now, too heavy to contend with a well sorted kitcar, but a predator with Boxsters/350Zs etc.

Hence Im a fan , you either love them or hate them.

Regularly on ebay.com in the USA there are bike turbo assemblies for sale, Hahn, Big CC etc at reasonable money. Worth bearing in mind....


Your approach is spot on, learn as you go and if it doesnt pan out ok, bin it....

Youtube it running ?



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mark chandler

posted on 2/8/09 at 05:27 PM Reply With Quote
Well had a go at welding the block today, here's one side




Then welded, funny smell of burning wood and very hard to do..... so not that hopeful




Installed in car filled with water and still leaks Just at the end of the weld so have now lost interest in this lump, ebay to the rescue another 918blade engine has come in at £325 so fingers crossed.

At least I have a decent set of spares now.

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dean100yz

posted on 5/8/09 at 06:03 AM Reply With Quote
Cheap enough for another engine. I'm gonna keep my eyes out for a spare myself.
I'm gonna do the same on mine this winter. Dont have the skills like yourself but a good friend is pretty clued up so between two should be ok...i hope! Did you find goin fuel injection made it much easier setting up? Think i'd rather stick with the carb's to try keep costs down.

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mark chandler

posted on 6/8/09 at 09:57 PM Reply With Quote
I prefer injection because of the flexibility, carbs need sealing then rising rate fuel regulator, if going for 8psi boost then a pump capable of 10psi....

If it goes lean when flat out goodbye pistons, but this is a well trodden route.

Megasquirt needs you to get your head around it, after that it just gets easier. Plenty of peeps here can help you out.

Carbs will be cheaper and should deliver the same power, you will probally lose some economy as it will be hard to get correct across the full range.

For me the big advantage is BUSA power without BUSA cost or weight!

When it goes bang cheap replacement.

Regards Mark

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mark chandler

posted on 7/8/09 at 06:58 PM Reply With Quote
Replacement engine in, only one small hiccup, One of the exhaust studs had been snapped previously taking a lump of casting then cunningly build up with JB weld, sold to me as good

I would have wanted a bit off as the head is scrap, but AC tig to the rescue, ground that out and rebuilt. Engine now all plumbed in and running, sounds great.

Broke out my ebay Db meter, 98db @ 8000rpm so have just booked up Woodbridge for Sunday.

Just hope I do not destroy all my hard work to soon!

[Edited on 7/8/09 by mark chandler]

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mark chandler

posted on 13/8/09 at 07:33 PM Reply With Quote
Quick update, went to Woodbridge aerodrome on Sunday and had a very good day.

Little car was really good, not getting overly hot with loads of power until the plenum split around the lower welds so lost all boost.

Had me fooled as thought the turbo was stuffed, but found the issue so cable tied up, and carried on with hardly any boost.

The biggist issue I have is gearing, when on boost I was flat out on the straights within a few hundred yards, standard blade gearing with 13" wheels and 3.65 diff is ~125mph so I now need a taller diff.

Another chap was there with a turbo MNR, the build quaility was FANTASTIC, put me to shame unfortunately he had heating issues. Also met a few others from here so all a jolly good time really.

Will weld the plenum up at the weekend but add some rods to brace it, I guess it must have been flexing, on/off boost causing the split as its torn alonside the weld by the look of it.

Cheers Mark

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twybrow

posted on 14/8/09 at 10:53 AM Reply With Quote
I am in awe. I wish I had your skills and confidence!

Can you post some info on the turbo? What is it from?

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mark chandler

posted on 14/8/09 at 11:32 PM Reply With Quote
Its an early one of these.

link

The 53 series

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jambojeef

posted on 16/8/09 at 01:36 AM Reply With Quote
Any problems with clutch slip at all?

Geoff

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mark chandler

posted on 16/8/09 at 07:44 PM Reply With Quote
Not yet, the plates are all pretty new, a bonus on engine number 2 and I put in some barnet HD springs.

If the numbers stamped on then is anything to go by they are all standard Honda. I just use halfords semi bike oil.

This is another reason to not go to mad on boost yet.

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mark chandler

posted on 26/9/09 at 10:36 PM Reply With Quote
Second track day all turbo'ed up and going very well.

Boost by the gauge is 0.4 so ~5.5psi which agrees with the MAP value logged at 143 peak.

Only fly in ointment is car gets hot when thrashed hard so holes required within bodywork.

Performance has moved right up, I was chasing down a slick shod westfield BUSA for most of the afternoon, straight line performance is on a parr, just falling behind on bends so a little extra boost required and slicks...

On the straight I was nudging 120mph, 3.14diff is definately required if you do this ....


Regards Mark

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Steve Hignett

posted on 26/9/09 at 11:00 PM Reply With Quote







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Spaz

posted on 14/4/10 at 08:48 PM Reply With Quote
Awesome!
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FASTdan

posted on 7/7/11 at 07:32 AM Reply With Quote
Good work indeed - only just seen this thread, very good read





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