[mgarblik]

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.

[RAIV-Z]

Originally Posted by mgarblik

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.

Hey Mike,

Raven race weight was 3640lb.

[cgeise]

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

[mgarblik]

Originally Posted by RAIV-Z

Hey Mike,

Raven race weight was 3640lb.

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.

[PAUL K]

Originally Posted by mgarblik

Think about this: Your car may close to double the weight of the Kauffman dragster.

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.

[slowbird]

Originally Posted by PAUL K

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.

Lol my father in-law didn't understand things until i put thing in terms of 0-125mph in 5sec. Then he seemed to sort of understand is Mercedes wasn't that impressive to me.

[RAIV-Z]

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.

[slowbird]

Good update, any idea when you hope to be running again?

[RAIV-Z]

Originally Posted by slowbird

Good update, any idea when you hope to be running again?

Best case is looking like the end of August.

[GTOGEORGE]

Originally Posted by RAIV-Z

DCI RAV Heads and intake being massaged by Jim Robertson.

Next up balancing and finish machine work on the short block.

What about DCI, I'm sure Don knows his heads better then anyone else?


GTO George

[Tom Vaught]

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.

[GTOGEORGE]

Originally Posted by Tom Vaught

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.

So another word you are just guessing.......good post!
Actually my post was to the Raven racing team!

GTO George

[Jim Robertson]

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...

[Tom Vaught]

Thanks for the correct info Jim. Best to you and your family.
Tom V.

[3fastgtos]

Were you having a problem with the composite dist. gear? I just ordered two of them. Lol

[RAIV-Z]

Originally Posted by 3fastgtos

Were you having a problem with the composite dist. gear? I just ordered two of them. Lol

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.

[GTOGEORGE]

Originally Posted by RAIV-Z

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.

What about DCI not porting you’re heads?


GTO George

[RAIV-Z]

Originally Posted by GTOGEORGE

What about DCI not porting you’re heads?


GTO George

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.

[cgeise]

I may suggest a dry sump no dist gear issues then . I forgot to ask what is your A/F at during full throttle ???

[RAIV-Z]

Originally Posted by cgeise

I may suggest a dry sump no dist gear issues then . I forgot to ask what is your A/F at during full throttle ???

Hey Curt,

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