110mm bore 928 engine project - plans for a 7.4 liter in the works.
04-06-2006, 06:38 PM
#78
Again, Awesome.
04-06-2006, 06:50 PM
#79
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Sleaves are steel, right?
H-P or Tim, do you know what size/offsets were used to get 305/30-18s on all 4 corners of Jim Page's car? Do you have any front tire pics?
H-P or Tim, do you know what size/offsets were used to get 305/30-18s on all 4 corners of Jim Page's car? Do you have any front tire pics?
04-06-2006, 08:21 PM
#80
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Matt,
He had those wheels custom made - we are sworn to secrecy as to how he fit those on there with zero body modifications (he did roll the fenders, but no flares).
His wheels will not bolt onto any other 928 that we know of.
He had those wheels custom made - we are sworn to secrecy as to how he fit those on there with zero body modifications (he did roll the fenders, but no flares).
His wheels will not bolt onto any other 928 that we know of.
04-06-2006, 10:12 PM
#81
Race Director
Quick math ??? With a 110mm bore the stroke would be about 106mm to make 7.4L right? Thats a solid 10mm more than the standard stroker cranks out there now! Can a stock 928 block stroke that far? Or does the stronger steel sleeves allow for the longer stroke (plus bigger bore since the steel is thinner?)
04-07-2006, 01:44 AM
#82
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you better plan on getting some bigger flares up front!
we use 8" backspacing for the rear, and a 8.5" backspacing for a 10" rim up front for the 305. however, it still rubs on the inside, but for street its ok
MK
we use 8" backspacing for the rear, and a 8.5" backspacing for a 10" rim up front for the 305. however, it still rubs on the inside, but for street its ok
MK
Originally Posted by FlyingDog
Sleaves are steel, right?
H-P or Tim, do you know what size/offsets were used to get 305/30-18s on all 4 corners of Jim Page's car? Do you have any front tire pics?
H-P or Tim, do you know what size/offsets were used to get 305/30-18s on all 4 corners of Jim Page's car? Do you have any front tire pics?
04-07-2006, 08:01 AM
#84
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One area that may need to be looked into further with these big inch motors is the 'bay to bay' pumping action around the crank . Porsche modified the GTS blocks because of this & GM also had a problem with this on the LS6 block ,see link below.
LS6 block mods
awesome project ,
Todd
LS6 block mods
awesome project ,
Todd
04-07-2006, 01:37 PM
#85
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Originally Posted by C.F.
One area that may need to be looked into further with these big inch motors is the 'bay to bay' pumping action around the crank . Porsche modified the GTS blocks because of this & GM also had a problem with this on the LS6 block ,see link below.
LS6 block mods
awesome project , Todd
LS6 block mods
awesome project ,
ToddThanks for the link. Great reading!
If I don't do a 928 again, I'll be lining up an LS6 swap into an RX-7... heh heh
04-24-2006, 11:00 PM
#87
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Since this thread has been bumped up (thanks Marc) I should point out Todd has over 1,000 miles on this motor, is driving it every day to work (even did a roll on race with a 600 CBR, you can guess who won).
04-25-2006, 12:43 AM
#89
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Not yet - I am trying to find a day that works for all of us up here to dyno the 928's. Hopefully soon.
04-25-2006, 08:28 AM
#90
Race Car
Originally Posted by marc@DEVEK
I run 305 on 11 in the front, easy on the rear.9" Bs up front with steering rack shaft spacer to rpevent inside rubbing.
What size rim, offset, and tire-size are you running on the back?