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#1781
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We were keeping the rpm under 8000 with the 4.5 stroke. Did the Grocery Getter weigh over 4000lbs?
No, it was just a tick over 3000#. I guess I have no idea what your cars weighs. Sorry for that confusion. |
#1782
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Quote:
Raven race weight was 3640lb.
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2023 Best ET Slip 60’ 1.224 330 3.186 1/8 4.784 MPH 152.07 1000 6.175 ET 7.347 MPH 189.92 Weight 3650 YouTube Channel --> https://www.youtube.com/channel/UC21...rWwgFdfTRqShGQ FaceBook Group --> https://www.facebook.com/groups/220092308823847/ |
#1783
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just an FYI the guy that helped us tune our deal -- one of the best around at the time really liked the longer stroke easier to build boost he said -- BBC 632s run all day at 8k with a 4.75 stroke crank -- so --- go for it
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#1784
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Wow! I had no idea it was that heavy. I know it has a tremendous chassis structure, but I never would have guessed that race weight. You are making allot of torque and HP to move that beast! Think about this: Your car may close to double the weight of the Kauffman dragster.
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The Following User Says Thank You to mgarblik For This Useful Post: | ||
#1785
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I like looking at things from different angles like that. The Raven can probably make close to three times the power also. I often show a novice the 1/8 mile MPH and compare it to current 0-60 times of performance cars today. It helps folks relate to how fast our cars are.
Last edited by PAUL K; 02-15-2020 at 06:12 PM. |
The Following User Says Thank You to PAUL K For This Useful Post: | ||
#1786
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The Following User Says Thank You to slowbird For This Useful Post: | ||
#1787
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3/16th partial steel midplate replaced with ¼ aluminum full plate Hall's Custom
Done Performance Torque Converters torque converter checked out and tightened up. Done Innovators West, Inc. damper internals checked out and larger hub machined and double keyed Done BOP Performance belt drive upgraded to a GEN-IV (Previous was a GEN-III) Acquired DEI Header wrap being replaced with Summit Volcano Wrap Acquired Fuel Injector Development 275lb injectors cleaned and reflowed Done ARP Automotive main studs being replaced with a new set. Acquired Crower Cams & Equipment Co .Crower Billet 4.5 being replaced with a 4.25 Acquired Moldex 4.25 ATI flexplate being replaced with a Meziere Acquired Composite distributor gear swapped out for a bronze Brian Hedrick Acquired Cam shaft replaced with one with a few degrees more duration. Acquired Ross Pistons Pins and Total Seal Rings Acquired Intake valve size increased from 2.270 to 2.280, Exhaust valves replaced BME 396 Aluminum Rods Acquired Wastegates dumps relocated Complete ARP200 Head Studs Acquired DCI RAV Heads and intake being massaged by Jim Robertson. Next up balancing and finish machine work on the short block.
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2023 Best ET Slip 60’ 1.224 330 3.186 1/8 4.784 MPH 152.07 1000 6.175 ET 7.347 MPH 189.92 Weight 3650 YouTube Channel --> https://www.youtube.com/channel/UC21...rWwgFdfTRqShGQ FaceBook Group --> https://www.facebook.com/groups/220092308823847/ |
#1788
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Good update, any idea when you hope to be running again?
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#1789
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Best case is looking like the end of August.
__________________
2023 Best ET Slip 60’ 1.224 330 3.186 1/8 4.784 MPH 152.07 1000 6.175 ET 7.347 MPH 189.92 Weight 3650 YouTube Channel --> https://www.youtube.com/channel/UC21...rWwgFdfTRqShGQ FaceBook Group --> https://www.facebook.com/groups/220092308823847/ |
#1790
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Quote:
GTO George |
#1791
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Jim Robertson has a very good relationship with Don at DCI and has ported Don's heads for people over the years, with Don's blessing.
Plus I believe the current set of heads on the Raven were previously ported by Jim Robertson. Ask the Raven guys about that deal George. I was in the Trailer when they talked to Jim Robertson years ago about him doing some heads for them. Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#1792
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Quote:
Actually my post was to the Raven racing team! GTO George |
#1793
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Yes we are making good progress on new port size/configurations. New seat work, guides, porting and Ti valves should help the Raven make a bit more steam.
For the record I have not seen or worked these heads and intake before but am looking forward to the opportunity to work on this extremely high quality engine/car build. Stay tuned...
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Jim www.raceV8s.com 1972 Trans Am drag car, 3300lbs, 468 ci, Iron D ports, 428 block, 9799103 crank, 9.48 @ 143mph, 6.0 @ 114mph in the 1/8th. |
#1794
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Thanks for the correct info Jim. Best to you and your family.
Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#1795
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Were you having a problem with the composite dist. gear? I just ordered two of them. Lol
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#1796
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This composite gear was run for ~1.5 seasons driving a titan oil pump, It did look a bit chewed up. I will admit, the cam gear was not dressed prior to installation.
__________________
2023 Best ET Slip 60’ 1.224 330 3.186 1/8 4.784 MPH 152.07 1000 6.175 ET 7.347 MPH 189.92 Weight 3650 YouTube Channel --> https://www.youtube.com/channel/UC21...rWwgFdfTRqShGQ FaceBook Group --> https://www.facebook.com/groups/220092308823847/ |
#1797
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Quote:
GTO George |
#1798
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Hey George,
Don mildly ported the intake and heads when purchased. I had no plans on making any head changes besides increasing the intake valve size during what started out as a 2020 "refresh". At this point we were making ~1,828.07 flywheel HP based on the Wallace Racing calc at ~26.3lb boost. I do speak with Don and Jim as well as a few others regularly. While talking with Jim a few weeks ago I mentioned there were some major delays on short block parts and machine work, knowing that we want to really turn it up this year, he said send the top end down to him and he'll see what he could do to help out while turning around the parts in a very short time frame. Btw, Jim recently also did a set of pump gas e-heads for Mike's 66 GTO "The Lunatic" that made 721hp.
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2023 Best ET Slip 60’ 1.224 330 3.186 1/8 4.784 MPH 152.07 1000 6.175 ET 7.347 MPH 189.92 Weight 3650 YouTube Channel --> https://www.youtube.com/channel/UC21...rWwgFdfTRqShGQ FaceBook Group --> https://www.facebook.com/groups/220092308823847/ |
#1799
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I may suggest a dry sump no dist gear issues then . I forgot to ask what is your A/F at during full throttle ???
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#1800
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No room for a dry sump at this time. Current target AFR is 11.8, at full throttle the O2 datalogs shows that AFR varies on both banks from 11.5 to 12.1
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2023 Best ET Slip 60’ 1.224 330 3.186 1/8 4.784 MPH 152.07 1000 6.175 ET 7.347 MPH 189.92 Weight 3650 YouTube Channel --> https://www.youtube.com/channel/UC21...rWwgFdfTRqShGQ FaceBook Group --> https://www.facebook.com/groups/220092308823847/ |
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