I'll it a try once more, anybody have a drawing of a 1968 frame with these dimensions written on ??
Thanx Med Vennlig Hilsen/Kind Regards/Cordiali Saluti Andr� Broe Jensen -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tigergutt Sent: 21. desember 2003 17:29 To: 'The Chevelle Mailing List' Subject: RE: [Chevelle-list] 1968 chevelle coupe frame dimension. Ciao, I could need some help, approximately 4-5" in front of the cowl there is a "measurement/reference" hole going through the frame, I wonder if someone out there have a book which tells the exact distance from this hole to wheel centerline. I measured it to be 10" to 10 1/4" but the measurement depends on how many shims are used. There is another reference hole in the corvette crossmember which is marked as 0 "zero" I'm quite sure this indicates wheel centerline on the corvette parts so if I had the distance it would just be a matter of mocking up the parts and welding them in. Also if someone have a c4 I could need some measurements of the car at ride height. Thanks ! Med Vennlig Hilsen/Kind Regards/Cordiali Saluti Andr� Broe Jensen -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brad Waller Sent: 20. desember 2003 00:40 To: 'The Chevelle Mailing List' Subject: RE: [Chevelle-list] My combo on desktop dyno -- me too! Again, I don't quite have enough information to do it all that well, and the software is not specific for lots of parts. I get to choose dual plane or single, and that is it. I can't specify the difference between a Performer or RPM even, so there will be differences in real life here. Same goes for rod length, roller rockers, etc. I only have old GM head flow data for the 441, 462, and 882 heads. I'm guessing that the 487X is most like the 882. I also guessed at 9.5:1 compression, although this might be high. Without knowing the head gasket thickness and how far the piston is down the bore at TDC I can't calculate the compression. Also, is the piston truly flat top, or does it have a small valve relief. This can make a difference. Without even running the simulation, my first thought is that you are giving up a lot with those heads. You have the great big bore, and only 1.94/1.5 valves. I'll get you my best guess of your results, and then make a few checks with other heads... Max HP: 354 @ 5,000 MAX TQ: 396 @ 4,000 http://ep.com/brad/ForumPix/studlygraph.gif http://ep.com/brad/ForumPix/studlytable.gif Just switching to 2.02/1.6 valves with the same head gives you another 19 HP. http://ep.com/brad/ForumPix/studly202.gif Try the AFR 190 and you pop up to: Max HP: 415 @ 6,000 MAX TQ: 426 @ 4,500 http://ep.com/brad/ForumPix/studlyafr.gif Match this to a better cam and you can get even more. The XE268 cam really wakes up the beast! Max HP: 401 @ 5,000 MAX TQ: 456 @ 3,500 (over 400 lb-ft from 2,000-5,000 RPM!) http://ep.com/brad/ForumPix/studly268.gif Go radical and swap to a roller (XE286) and the sky is the limit: Max HP: 468 @ 5,500 MAX TQ: 484 @ 4,500 http://ep.com/brad/ForumPix/studlyroller.gif Brad > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Dave Studly > Sent: Friday, December 19, 2003 11:01 AM > To: The Chevelle Mailing List > Subject: RE: [Chevelle-list] My combo on desktop dyno -- me too! > > > I'd love to see what it says about my combo as well, if > someone would be > willing.. > > 406 cid > 5.7 rods > flat-top piston with 76cc head -- '71 487X casting, 1.94 / 1.50 valves > Summit Cam -- 234/244 @ .050", .488/.510 lift with Crane 1.5 > full roller > rockers > Edelbrock Performer RPM (not air-gap) > Holley 750 vacuum secondary (3310-3) > HEI w/ MSD 6AL > > -Dave > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Tigergutt > Sent: Thursday, December 18, 2003 4:21 PM > To: 'The Chevelle Mailing List' > Subject: RE: [Chevelle-list] My combo on desktop dyno. > > > > > > > Med Vennlig Hilsen/Kind Regards/Cordiali Saluti > > Andr� Broe Jensen > > Would someone be so kind to run my combo on their desktop dyno > > 355 cid > 10,5 compression > Summit 282deg cam. > Intake & Exhaust duration 224deg at 0,50� > Intake & Exhaust lift 0,496� with 1,6 ratio rockers > Camel humps 292 Heads 2,02 & 1,60 stainless valves, > Edelbrock Performer RPM manifold, > Edelbrock 600cfm Performer carb, manual choke > Hei Distributor with MSD coil and module. > > Will this make 350 hp??? > > Thanks ! > > Andr� > > > > >
