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Thanks Paul for the kind words yea Im going to have to spend some extra time in the friendly skies for the greenbacks I have to say this forum is great so many people with so much knowledge and experiences

Old 01-31-2011, 06:56 AM
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Thanks for the insight on a potential cause. Sounds like you are at least fortunate to have a couple of other Pelicanites to help out with such a huge project. I can't even imagine how I would tackle this one. Keep the pictures coming
Old 01-31-2011, 08:07 AM
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bleachii horsepower is fun but stock motors are great
Old 01-31-2011, 08:22 AM
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People have mentioned cylinder recaoting infact engine builders supply offers cylinder replating on my 3.4 mahles for 895 and je pistons for 8 to 1 compression any thoughts?($1000 for pistons)Any issues with durability vs a brand new set?
Old 01-31-2011, 08:49 AM
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Quote:
Originally Posted by citrus View Post
People have mentioned cylinder recaoting infact engine builders supply offers cylinder replating on my 3.4 mahles for 895 and je pistons for 8 to 1 compression any thoughts?($1000 for pistons)Any issues with durability vs a brand new set?
EBS re-did my 3.2 full finned jugs to 3.4 with re-coat...I went with 7to1 pistons..$1000 for 8:1 3.4 JE's seems fair to me.
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Old 01-31-2011, 09:25 AM
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Quote:
Originally Posted by citrus View Post
People have mentioned cylinder recaoting infact engine builders supply offers cylinder replating on my 3.4 mahles for 895 and je pistons for 8 to 1 compression any thoughts?($1000 for pistons)Any issues with durability vs a brand new set?
John...bear in mind that your cylinders began life at a nominal 98mm and are already worn to larger than 98mm. Unless they bore them to some odd size (like 98.5mm), I'm not sure you can have this done.
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Old 01-31-2011, 10:02 AM
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John, I don't know what to say about your engine being blown! Sorry to hear about that! I remember following you seeing and smelling heavy rich exhaust smoke at Okturbofest last fall. But now your engine was damaged from being lean!?! Do you have an onboard wideband? I'm wondering how it well (or bad) it ran at VIR. Anyway it looks like you and your 930 is in good hands with guidiance of Vince and Jacob.
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Old 02-01-2011, 05:38 AM
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Hey Mike yea during octkturbo fest the car was set up rich and damaged was done prior .This spring when we dive into the motec programing we will see the existing parameters .
Old 02-01-2011, 07:32 AM
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Slippery slope indeed, good luck with the build!
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'86 930: 3.4 Andial build, Web GT2 Evo cams, Carrillo rods, ported/polished heads, MSD 6530, B&B headers/exh + intercooler, K27HF, 1 bar spring, Tial wastegate, Andial FE, Lindsey Fuchs. Back in black!!!
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Old 02-01-2011, 12:21 PM
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I'm amazed how fast that car was at VIR last fall... was it damaged there, already? I remember changing plugs though... Hey John, Enjoy it! Keep the pictures coming.
Old 02-01-2011, 04:21 PM
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Hey Miguel I am not 100% sure when all damaged occured because when I first bought the car it always puffed hard out of the oil fill tube . I suspect most of the damage was done prior to trackday because #6 plug was soaked before I started at VIR. Oh well I am learning alot about this car and it is fun . (and expensive)
Old 02-01-2011, 05:23 PM
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I would like to solicit any pelicanites expertise regarding compression.First I have decided based on many conversations and pelicanites that my mahle cylinders can be recoated decked and brought back into spec at a resonable price ($900)3.4L. Secondly,mahle yellow bird pistons are only capable of 7.5 to 1 compression and new JE pistons are capable 8 to 1. Question would I be able to tell the difference regarding the higher compression and can 8 to1 compression run safely on single plug?
Old 02-01-2011, 05:41 PM
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I'm about to embark on my first 930 engine rebuild... sure wish I had that kind of a work space! Good luck.
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Old 02-03-2011, 12:49 PM
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I have the Mahle 3.4 L 8:1 pistons/cyl with single plugs and have no problems.
Old 02-03-2011, 01:01 PM
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I have the Mahle 3.4 L 8:1 pistons/cyl with single plugs and have no problems.
Are they the Mahle motorsport "yellowbird" P&Cs. The one's I have seen are 7.5/1 comp ratio. I've not seen a Mahle turbo piston set that delivers 8/1. Perhaps you can get the extra 1/2 point by shaving the heads and running a very tight deck?
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Old 02-03-2011, 01:28 PM
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+1: 3.4 are 7.5:1
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Old 02-03-2011, 03:50 PM
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DOHHH! I stand corrected. Looking back on my conversation with a previous owner, they are 7.5:1.

You guys are too sharp.

Tom
Old 02-03-2011, 06:42 PM
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While some of the hoods featured an open cowl, many offered opening cowls controlled by the engine's vacuum system. When the operator stomped the throttle to the floor, the drop in vacuum triggered the cowl flap to open. This allowed the engine to breathe the horsepower-enhancing cool air charge directly off of the vehicle's cowling. While drag racing vehicles can benefit from a forward-mounted air scoop to funnel cold air in as the vehicle charges in a straight line down the track, circle track racers still take the cool air charge from the rear of the hood via an air box.User Cars Calgary
Old 02-04-2011, 01:02 AM
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engine's coming back together

Special thanks to Jacob!! I'll post more later, but here's some pix.



















Old 07-24-2011, 06:57 AM
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Hello everyone, engine is going back together after sending out parts for reconditioning and buying new components.My fellow pelicans may recall this winter the engine was dropped because of a poor leakdown number 25% which reavealed a warped piston and a total of three pistons with broken rings. After much measuring with Jacobs bore gauge the Mahle cylinders were reconditioned and a set of J E pistons ordered from LN Engineering thanks Charels.

Old 07-24-2011, 12:47 PM
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