[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.

[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

[charlie66]

Originally Posted by RAIV-Z

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

Im curious to what side is 11.5 AFR ?

Are you using race gas or e85 ?

Thanks

[RAIV-Z]

Originally Posted by charlie66

Im curious to what side is 11.5 AFR ?

Are you using race gas or e85 ?

Thanks

The Left "passenger side" is a running slightly fatter. I'm using C16 fuel.

[cgeise]

yup i was told 11.5 ish was best power --

[charlie66]

Thank you

[RAIV-Z]

Looking for a Garrett Turbocharger Turbine Housing PART# 408532-0034

[cgeise]

have you checked with EXILE turbo in Calif??

[RAIV-Z]

Turbonetics came through with one housing and enough info to allow me find another, both will need some machine work to fit the turbos. We're changing from to 0.89 A/R to 1.23 A/R due to excessive back pressure.

[RAIV-Z]

After a little machine shop massaging, the Garrett housings should fit the Turbonetics 88's.

[RAIV-Z]

Mockup indicates some additional turbine housing machine work is required as well as some potential clearance issues with one of the radiators on the drivers side.