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Whipple Update
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endwrench  



Joined: 07 Dec 2002
Posts: 1629
Location: Victor, Montana

PostPosted: Fri Jun 09, 2006 1:25 pm    Post subject: Whipple Update Reply with quote

For those who care I have now intercooled and and upped the boost on my supercharger. After destroying my first smaller pulley made of plastic I went ahead and built a "real" pulley from aluminum. Fortel actually. Strange stuff to machine. It provides a 41% overdrive and a solid 8.5 lbs boost thru the intercooler. Da' bitch runs now!! What a difference. Pulls like a bigblock Camaro.

I could immediatly hear detonation though. First time I ever detected it. I even tried to induce it before just so I could make sure I could hear it after seeing the pictures of Nicks pistons. He said he never heard it and it looked like someone took a ballpeen hammer to his pistons! Anyway, I knocked the timing back about 3 in the new boost ranges and nothing since.

The intercooler works great! The highest temp rise over ambeint I recorded in my datalogs was 15. The blower is pumping some very hot air now too. You can't touch the discharge tube on the blower anymore after a run but the output on the intercooler is cool to the touch. It did block airflow to the radiator though (as Sequential warned it might). I wired the fans to a switch and it works very well. Actually cools better than the stock setup. That's about it.



Todd
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JB 924  



Joined: 03 Apr 2006
Posts: 606
Location: Hessen, Germany

PostPosted: Fri Jun 09, 2006 2:10 pm    Post subject: Reply with quote

That's awesome . Have you done ay 0-60 or 1/4 runs yet?

Very cool.
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sequential  



Joined: 18 Nov 2005
Posts: 500
Location: BANNED

PostPosted: Fri Jun 09, 2006 2:52 pm    Post subject: Reply with quote

Pulls like A big block Chevy !

Alright todd, you chickened out on the pully , thought you where going for 11 psi ...
Check your plugs not because you do not hear anydetonation , does not mean it is not detonating, remember to run at least one stage colder than stock on the spark plugs...
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928 gts prototype
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Paul  



Joined: 02 Nov 2002
Posts: 9410
Location: Southeast Wisconsin

PostPosted: Fri Jun 09, 2006 3:00 pm    Post subject: Reply with quote

Outstanding, nice work!

Time for a dyno run and tuning session?
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
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endwrench  



Joined: 07 Dec 2002
Posts: 1629
Location: Victor, Montana

PostPosted: Fri Jun 09, 2006 4:02 pm    Post subject: Reply with quote

JB 924, No runs yet. I do own an old G-tech so I will do it when I have time.

sequential wrote:

Alright todd, you chickened out on the pully , thought you where going for 11 psi ...


Ya ya, I got tired of dragging the damn bit across the circumfrance of the pulley trying to whittle it down so i talked myself into going with 40% over instead of 50% Atleast I can "buy" smaller pulleys at the next stage. A machinest I am not!


sequential wrote:
Check your plugs not because you do not hear anydetonation , does not mean it is not detonating, remember to run at least one stage colder than stock on the spark plugs...


Good idea. I haven't done either yet

Paul, dyno's are like frog fur around here so that will have to wait till I bolt on the Turbo head and turn up the boost once more. But I am going to move out of the stone age and actually buy a wideband O2

Todd
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'79 924NA. Rebuilt 9.5:1, MSDS header, Mega Squirt Injection, MJLJ-EDIS Ignition, 1.6L Whipple Charger and Intercooler, 10lbs Boost, 944 Trans, Custom HD Clutch.
"simsport" said....superchargers are better than turbos its official!....
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Paul  



Joined: 02 Nov 2002
Posts: 9410
Location: Southeast Wisconsin

PostPosted: Fri Jun 09, 2006 4:16 pm    Post subject: Reply with quote

Hart's Motorsports & Dyno (406) 273-6111 7105 Lolo Creek Rd, Lolo, MT 21.32 mi
http://local.yahoo.com/results?fr=dd-local-more&stx=dyno&csz=Victor%2C+MT
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
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endwrench  



Joined: 07 Dec 2002
Posts: 1629
Location: Victor, Montana

PostPosted: Fri Jun 09, 2006 4:22 pm    Post subject: Reply with quote

Ha!! Nice find but all they do is motercyles and snowmobiles. Thanks anyway!! Next closest is a guy in Polson wich is more than 2 hours away.

Todd
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Paul  



Joined: 02 Nov 2002
Posts: 9410
Location: Southeast Wisconsin

PostPosted: Fri Jun 09, 2006 4:32 pm    Post subject: Reply with quote

Yeah I thought so!

I dyno run would id any detonation and rich/lean conditions and could save your motor.
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
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leadfoot  



Joined: 11 Dec 2002
Posts: 2222
Location: gOLD cOAST Australia

PostPosted: Fri Jun 09, 2006 7:18 pm    Post subject: Reply with quote

sweet, i'll send ya my ignition map and you can compare it with yours... as we're running almost identical boost, funny how we both went from 3/4 psi respectively to 8.7/8.5 psi?? great work, if you haven't installed an oil cooler you might consider keeping an eye on how fast your oil lasts...

Well done, you must be pretty stoked!!
Leadfoot
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Chrenan  



Joined: 15 Jan 2003
Posts: 3899
Location: Canada

PostPosted: Sat Jun 10, 2006 1:07 am    Post subject: Reply with quote

Cool setup. Can I ask what kind of radiator you are running, I don't see the coolant expansion tank?
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endwrench  



Joined: 07 Dec 2002
Posts: 1629
Location: Victor, Montana

PostPosted: Sat Jun 10, 2006 3:50 am    Post subject: Reply with quote

Paul, I'll just run on the rich side and be conservitive with my timing till the next stage then I'll go for the dyno run.

Leadfoot, your maps would be nice to see. I don't remember if you are intercooled or not?

Chrenan, I am running the stock radiator. I always hated the looks of those plastic tanks so I built one from steel and mounted it out of the way.



Todd
_________________
'79 924NA. Rebuilt 9.5:1, MSDS header, Mega Squirt Injection, MJLJ-EDIS Ignition, 1.6L Whipple Charger and Intercooler, 10lbs Boost, 944 Trans, Custom HD Clutch.
"simsport" said....superchargers are better than turbos its official!....
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Chrenan  



Joined: 15 Jan 2003
Posts: 3899
Location: Canada

PostPosted: Sat Jun 10, 2006 4:02 am    Post subject: Reply with quote

I see, that's pretty cool. I am with on hating the stock tank, looks ugly, your engine bay looks nice without it.
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Keaton  



Joined: 02 Jan 2006
Posts: 261
Location: 85202

PostPosted: Mon Jun 12, 2006 4:12 pm    Post subject: Reply with quote

are you going to put any type of pop off valve.
your motor was a NA motor right?
how big is you intercooler?
cant wait to see the dyno, thats want i want to do to mine.
looks good
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endwrench  



Joined: 07 Dec 2002
Posts: 1629
Location: Victor, Montana

PostPosted: Tue Jun 13, 2006 3:13 am    Post subject: Reply with quote

Keaton, yes it is NA. It has a blowoff valve mounted on the left side of the blower hat. Just a 25mm stock Bosch unit fron an A4 audi. The intercooler can be seen at this link:

http://www.924board.org/viewtopic.php?t=18235&highlight=intercooler

It looks to be the same as Out-of-the-box only modified for my purposes.

Todd
_________________
'79 924NA. Rebuilt 9.5:1, MSDS header, Mega Squirt Injection, MJLJ-EDIS Ignition, 1.6L Whipple Charger and Intercooler, 10lbs Boost, 944 Trans, Custom HD Clutch.
"simsport" said....superchargers are better than turbos its official!....
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-nick  



Joined: 16 Nov 2002
Posts: 2699
Location: Cambridge, MA

PostPosted: Tue Jun 13, 2006 5:54 am    Post subject: Reply with quote

Endwrench - congratulations on the good work! Looks like you're having lots of fun Pulls like a big block eh? heh heh.

By the way - why does your MS board look so odd to me? Maybe I just haven't opened mine up in a while...

Your pics keep my motivation up to squeeze in some more time to finish mine up! I'm looking forward to swapping logs with you MS guys soon

nick
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