WAY Mod Tech...

[5-90]

This is something I heard about several years ago, and just checked back in on. Looks like it's a REALLY interesting idea, and I recall it was going to be offered for automotive production (probably based upon interest.)

I know we had enough going on trying to get an aftermarket head done a while ago, but I guess HESCO listened. What I'd like to know is how many of you think this would be an interesting idea to explore, and if I should contact Coates and see what they have to say and if I should cover it in my book anytime soon.

http://www.coatesengine.com/csrv.html

I remember seeing some quite impressive test and emissions reports when I got the first batch of information, and I may have scanned and saved them somehwere. Let me know if anyone wants to see them.

I put the poll up for a quick count, but I'd like to know who answers what and why so I can sort out where to go next...

[BrettM]

bling!

http://www.coatesengine.com/eGallery/images/pic06.jpg

any idea at all on cost?

[5-90]

First interest, then cost.

I do see two small problems with this for our applications:

1) There's going to be a LOT of camshaft modeling to be done before a porting pattern or three can be accepted!

2) This seems to thrive on the idea of being a "cross-flow" setup, and the 242 is a "side-draft? head. This would require a modification to their basic design to accommodate both manifolds riding "sidesaddle," or the ability to mirror the intake manifold to the opposide side of the engine. Given this as an option, it would be a good time to "reinvent" the intake manifold - which is another project I've got set aside anyhow - to take advantage of wave action for "tuned ram" induction (done to increase VE and make power!)

Still, I just wanted to throw it out there and see what everyone thought before this got too far along. I put the poll for three months, and I may ask for it as a stickie for a while...

5-90

[RichP]

My guess is these heads are aluminum, very cool design for sure and would be fun. That said one of the reasons for the longevity of the 4.2 and 4.0 is they are one of the few OEM consumer type engines that still use iron blocks and heads. I'd hate to loose that, every 'combo' motor, iron/aluminum engine I have ever had has been a PIA when either you overheat or use it under heavy loads for extended periods of time. Can you imagine the amount of warped heads we would have if Jeep had put an aluminum head on the 4.0. We'd be as proficient at doing head replacements as we are at rear main seals.... :)

[Root Moose]

My guess is these heads are aluminum, very cool design for sure and would be fun. That said one of the reasons for the longevity of the 4.2 and 4.0 is they are one of the few OEM consumer type engines that still use iron blocks and heads. I'd hate to loose that, every 'combo' motor, iron/aluminum engine I have ever had has been a PIA when either you overheat or use it under heavy loads for extended periods of time. Can you imagine the amount of warped heads we would have if Jeep had put an aluminum head on the 4.0. We'd be as proficient at doing head replacements as we are at rear main seals.... :)
Agreed. I like the idea of this head for high hp apps but I think the pushrod and non-crossflow design gives better low end torque - easier.

Sure, you can tune any configuration to give what you want but I'm content with the config we have now.

For the Jeepspeed crowd this head may be a hot ticket though.

r@m

[BrettM]

First interest, then cost.




I don't see how you can so easily seperate the two. I don't care how good it is if it's gonna cost $2000. I know many others are the same way. I'm only looking for a rough guess; what do their heads cost for other applications?

[Weasel]

interested, but have the same concerns as others. Durability, reliability and cost. Cosy isn't too big cause most stroker kits go for around 2-5k.

[5-90]

I'm not trying to separate the two ideas - I just first want to know if it's even worth bothering to ask about. If there's not enough interest, it's not worth trying to find out what it costs.

Flipside - I don't expect this to be radically cheap, either. If/when I strat asking, I'm also likely to ask about it in iron anyhow, but (like I said) I just want to make sure it's worth bothering to ask in the first place.

5-90

I don't see how you can so easily seperate the two. I don't care how good it is if it's gonna cost $2000. I know many others are the same way. I'm only looking for a rough guess; what do their heads cost for other applications?
deal - but

[vegeta]

I emailed them a year or so ago and asked about a set for a small block chevy. this was what I got from them.
" your March 2nd email was received, and it is a pleasure to hear from a potential customer. The auto program is “on a temporary hold” as I write this reply, and no automotive catalogs or pricing sheets have been prepared. Right now all resources are dedicated to mating the worldwide patented and protected CSRV system with a line of large industrial engines which will run on a variety of fuels. Only when management brings these engines to the market will new initiatives be announced. While most of your questions will have to wait until auto engines are released to the public, I can tell you that the intake manifolds are an integral part of the Coates design and should require no undue amount of maintenance. We recognize the merits of the L 98 small block Chevy engine you’ve inquired about, but the time for CIL to jump into this market hasn’t yet arrived. Thank you for contacting the Coates organization, and periodically check in with our website www.coatesengine.com to watch for postings which will inform the public of changes in our product development schedule.



Sincerely,



Dr. Richard Evans

Director

DRE: jmg"

I know this would be a kick ass set of heads for my firebird, but I'm not really sure how well a 4.0 would respond to them.

[Lawn Cher']

I've been loosely following this company's technology for several years... I even contacted them for a job at one point. They didn't seem too receptive to inquiries at the time, so I hope you find someone friendlier to deal with if you follow up on this.