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Old 09-16-2011, 04:44 PM
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Hi Tom,
I asked the fab shop about that, they claim there is plenty of room "~7 inches. I also asked them to take pictures from a few other angles.

Ed


Last edited by RAIV-Z; 09-16-2011 at 04:44 PM. Reason: typo
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Old 09-16-2011, 04:56 PM
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Quote:
Originally Posted by RAIV-Z View Post
Hi Tom,
I asked the fab shop about that, they claim there is plenty of room "~7 inches. I also asked them to take pictures from a few other angles.

Ed
I thought it might be a bad angle. Should be one hell of ride when its running.

Tom

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Old 09-23-2011, 06:28 PM
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RA-V heads are done. Lynn can post the details on them when he gets a chance, no flow numbers yet. Bottom end is ready to be assembled. Headers will be done up to the collector V-band flange today.
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  #64  
Old 10-03-2011, 08:19 AM
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Quote:
Originally Posted by T Syron View Post
I thought it might be a bad angle. Should be one hell of ride when its running.

Tom
Here's a better picture showing the clearance between the header and the head.
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  #65  
Old 10-03-2011, 09:52 AM
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Well, I cant wait to get this thing on the dyno. It is a street engine with street valve train and a street cam with multiport fuel injection. We will be able dyno a dual function. A street engine 535 FI normally aspirated, and then turbo charged.

This really gets me going! Casey won the Tbird dyno competition again! This is a street engine on a college kid budget. No money from dad.

http://www.youtube.com/watch?v=XekfzcgDe7s

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Old 10-06-2011, 05:49 PM
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Engine assembly has begun!
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  #67  
Old 11-01-2011, 06:51 PM
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Default McCarty RA-V Heads Ready for Assembly "almost"

Turbo Header should be complete this week.

Are any of you guys running a belt driven fuel pump with a rear mounted cell?
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Old 11-01-2011, 07:40 PM
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All of those RAV go-fast shiny parts look GREAT !
With twin turbos, this thing is gonna be a wicked, wicked beast

What kind of vehicle is this going to be going in ?

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Old 11-01-2011, 10:35 PM
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Thanks Silver Judge, it will be installed in this 69 Firebird.

Are you guys in the northwest finished drag racing this year too, New England Dragway closed last week?
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Old 11-01-2011, 11:03 PM
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Beutiul car. That motor is going to be a beast. I don't know about the west side of the Cascades, but on the east we are done racing for the year.

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Old 11-02-2011, 12:04 PM
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Thanks to Ed Page for his support on this project. It has taken a bit longer than projected as Tony was inundated with engine projects. We also have had a few set backs. It takes a lot of time to do things for the first time. For example, we had to write the valve placement program for alternate valve order, design CNC porting program, order RAV cam design for turbo engines, build special headers for the 69 Firebird. A big time investment has been the special RAV fuel injection.

This is a street engine with street valve train. It is designed to make 2200HP of a base engine that produces 751HP normally aspirated I fully expect to make way more horsepower base which should translate into an easier target with boost and a better number with pump gas. If we make the engine very efficient, then the higher numbers with pump gas can be achieved.

Attached is the design criteria from Dave Austin at Turbonetics.
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Old 11-02-2011, 12:22 PM
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Dave -- looking at the sheet it would seem that 34 psi is in the boom boom range. I also read the psi ratio as becoming and issue -- over 2.5 at 25 lb of boost seems high --and could contribute to some problems -- only after we went to a larger turbine wheel and housing did the backpressure get fixed -- dont pay for it twice - look into this issue

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Old 11-02-2011, 12:43 PM
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Dave,

We dont expect 751HP normally aspirated, and we dont expect to do 34 PSI. We are just being conservative on our design. I am hoping to achieve 2200HP with a much lower boost number. My goal is 25-PSI. Of course the biggest goal is how much HP we can get with pump gas.

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Old 11-02-2011, 12:45 PM
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This is going to be such a badass car when its done!!

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Old 11-02-2011, 07:57 PM
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Quote:
Originally Posted by RAIV-Z View Post
Thanks Silver Judge, it will be installed in this 69 Firebird.

Are you guys in the northwest finished drag racing this year too, New England Dragway closed last week?
That's a TASTY, TASTY looking 69 Bird, I love it!
So, I guess you're OK having a street car that only runs high 6's or low 7's in the quarter mile? LOL

Yeah, we're done with racing for the season (unless we tow to places like SoCal or Arizona)

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Old 11-02-2011, 10:37 PM
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Quote:
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That's a TASTY, TASTY looking 69 Bird, I love it!
So, I guess you're OK having a street car that only runs high 6's or low 7's in the quarter mile? LOL

Yeah, we're done with racing for the season (unless we tow to places like SoCal or Arizona)
It better easily run in the 7's "6's once I learn how to drive it" or someone is going to get their butt kicked
Anything interesting going on in Seattle next week?

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Old 11-03-2011, 11:38 AM
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Well Stacys car is knocking on the 8's door with 700ish HP (9.11 is his best time.) This engine in Stacys car will run 7s if you leave the turbos off and install a Q-jet. It takes a lot of experience. With this kind of car it is necessary to be safe and do it conservatively.

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Old 11-03-2011, 11:51 AM
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Did I miss it, what do the heads flow?

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Old 11-03-2011, 01:30 PM
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Lynn or I will post the flow numbers once we have them from BES.

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Old 11-11-2011, 01:21 PM
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We are about 400 cfm with the emphasis on BIG. We believe that cross sectional area is what a turbo engine is going to want. Especially for these two 88MM Turbonetics!! The exhausts are around 260. We didnt spend huge bucks like racers do porting the heads. These are just CNC for about $2500 and similar to the street heads done. Tony charges three times that for a good set of race heads, ie Super Stock, and over $12k for our Pro Stock style heads.(Similar to Langer's)

We moved the intake valve over 0.050, but then it put us back to the same spot as stock by using the 2.300 intake valve. The bore 4.35 gives us about 0.100 clearance between the intake valve and the cylinder wall. However, we dont have intake port choke to deal with on the size of these ports. We would need Tom V to tell us the virtues of CSA of the intake port to see if it impacts a Turbo motor like this as much as a NA engine.

Tom Vaught has been so very instrumental in helping us with this Turbo project. We cannot thank him enough for putting us together with Turbonetics and helping us along of the way.

Here is an article Casey read that he thought might be similar"

http://www.chevyhiperformance.com/te...k/viewall.html

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