Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > 911 / 930 Turbo & Super Charging Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Smart quod bastardus
 
fredmeister's Avatar
 
Join Date: Oct 2002
Location: Baltimore, MD, USA
Posts: 2,226
Garage
FOR SALE-Brand new 98mm JE piston set for 3.4 liter turbo

For sale a brand new in box set of 98mm 3.3/3.4 liter pistons from JE:

7.5 to 1 compression 98mm set for a 3.4 liter conversion --ONLY 3 pistons, wrist pins, snap rings and piston rings

I originally ordered a replacement from JE for three damaged pistons during my initial rebuild but then decided to order a complete set of Mahles after having already received these. You can order another three through JE to make a complete set of six very easily if you want a complete set for one engine. Its easy to order off the item number and build sheet I can provide for you.

Specs are as follows:
7.5 to 1 compression
machined valve relief pockets in dome allow radical cam to be used
98 mm bore with 23mm piston pin and wire lock snap rings
special ring package with chrome top ring ---1.2x1.5x4.0 ring grooves
custom machined relief groove in between first and second ring land for anti detonation relief.
special coated skirts for friction reduction anti galling during run in

Looking to get half or more back what I paid for these. Asking $500 or best offer.
PM me for more info.

thanks,
Fred



__________________
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, B&B intercooler, Snow Perf water/meth injection, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.7bar max
---"When you're racing it's life! Anything else either before or after, is just waiting"

Last edited by fredmeister; 02-23-2018 at 05:32 AM..
Old 02-23-2018, 05:23 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Chain fence eating turbo
 
Join Date: Dec 2008
Location: Austin, TX
Posts: 8,618
Fred, are you sure those are 7.5:1???

Mine are just ever so slightly domed, and are said to 7.5:1 (Mahle 98mm's, and I've seen the same set on Patrick Motorsports that look identical to mine listed at 7.5:1CR).
You can only see it's slightly domed by putting a straight edge over it and seeing a gap on the sides.

Yours pictured have a pretty noticeable dome or bump-up. Sure those aren't 8.0:1 or higher??

Nice pistons BTW. Would love to have them!
__________________
Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR P & C's, soon to be 993SS cams and GSXR 750 ITB's fed by 964 intake, Borg-Warner S366 turbo @ 1.4 bar, Treadstone full bay IC, TiAL F46 WG, HKS 1 1/2" BOV, twin 044 pumps, MegaSquirt 2 (v3.57 board) w/EDIS, Tramont wheels (285's rr, 225's frt), Big Reds frt, 993 rr., tower brace, MOMO wheel
Old 02-23-2018, 06:39 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Smart quod bastardus
 
fredmeister's Avatar
 
Join Date: Oct 2002
Location: Baltimore, MD, USA
Posts: 2,226
Garage
No they are definitely 7.5 to 1.


The dome is specified in the build sheet, from memory it is 0.068 inches high which is approx. 1/16 of an inch but its been awhile since I measured them. Don't tell me you gonna make me dig these out of the box and measure for you now? LOL. Remember the valve pockets also reduce the compression ratio as well.

I checked the numbers when I last did a rebuild using the same pistons and it calculated out around 7.4 to 7.5 to 1 with my 90cc cylinder heads.

let me know if you want to buy them then.

they are still available and I like to get them to a new home.

Fred
__________________
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, B&B intercooler, Snow Perf water/meth injection, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.7bar max
---"When you're racing it's life! Anything else either before or after, is just waiting"

Last edited by fredmeister; 02-23-2018 at 12:12 PM..
Old 02-23-2018, 12:08 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Smart quod bastardus
 
fredmeister's Avatar
 
Join Date: Oct 2002
Location: Baltimore, MD, USA
Posts: 2,226
Garage
Bump for April.....make me a reasonable offer.
__________________
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, B&B intercooler, Snow Perf water/meth injection, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.7bar max
---"When you're racing it's life! Anything else either before or after, is just waiting"
Old 04-04-2018, 05:40 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Smart quod bastardus
 
fredmeister's Avatar
 
Join Date: Oct 2002
Location: Baltimore, MD, USA
Posts: 2,226
Garage
Still for sale.

Will take $450 or reasonable offers. Contact me via PM.

thanks,
Fred
__________________
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, B&B intercooler, Snow Perf water/meth injection, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.7bar max
---"When you're racing it's life! Anything else either before or after, is just waiting"
Old 08-07-2018, 06:28 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Smart quod bastardus
 
fredmeister's Avatar
 
Join Date: Oct 2002
Location: Baltimore, MD, USA
Posts: 2,226
Garage
Bump
__________________
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, B&B intercooler, Snow Perf water/meth injection, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.7bar max
---"When you're racing it's life! Anything else either before or after, is just waiting"
Old 08-15-2018, 01:25 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 02:56 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.