[douglas]

Good or bad,my 370 stroker esr has been fantastic.Not one single problem.I have spent a lot more money on other builders? And had problems.

hey michael who assembled your 370 stroker ?

 

[The Phantom]

No problems with my 350pv yet.. probably got 6 hours on it anyway...

so whats the news...Ive got less time on my engine than when this thread started...:lol:

 

[oldskool]

OK,OK Neil, you have our attention

 

[michaelc1966]

Ha douglas.Eddie did. I just boxed my motor, and sent it to them.

 

[douglas]

Ha douglas.Eddie did. I just boxed my motor, and sent it to them.

Thanks mike will call him

 

[big_R_bore]

and the drumroll still continues... lol my buddy runs a new esr 370, I can say theres defintly no lack in performance

 

[tbone07]

Neil doesn't have the ability to take pics. So someone has to come over his shop and snap some pics


PS.....I heard the news was very good

 

[Big_Mike]

As witness, prior to disassemble of my R in October, my new ESR 430 PV is an absolute monster! I've had friends with street bikes who rode my R on the asphalt and said my R accelerates like a street bike!

Aside from all that, my new motor starts on the 1st or 2nd kick, runs at 180-185*, and is reliable!!!!!! I have stood by ESR products since 2001 till this present day.. That is personal facts on the motor and opinion of ESR! Dealing with Eddie directly is a pleasure!

 

[C-Leigh Racing]

Well, I'm gona try & get pics up today if my daughter will help, but you know, kinda interesting all the coments, cliff hanging, edge of the chair, biting my nails & such, so I dont know if I should go ahead & add something or let the suspence keep on rolling.
Really, kinda pleasing to read, in each of your replys how much respect you guys have for me, cause you could really be giving me down the road with the waiting deal.

I guess I'll go ahead & say, its nothing bad, in a way, but you all will be surprised cause I know I was.
This checking was an old junk ESR cylinder, not any of you guys cylinders that I have working on.
Neil

 

[rk88r]

How do you keep a ****** in suspense?



I'll tell you tomorrow.

 

[250rdrag]

Is your findings from working with the 310 cylinder I sent you? If so it is one of the first few cylinders made. I'm curious too!

 

[smonnat_1]

this is a perfect example of torture haha

 

[C-Leigh Racing]

Yes, it is that 310 casting from you 250rdrag. I'm just guessing at this, not asked Eddie yet, but that number 6 stamped under the exhaust, might indicate the 6th cylinder cast or sold, so it would be one of the very early ESR casting if it is.

Guys, was able to get my daughter to help with the cylinder pics, loaded on my e mail in folder, but she only had time to transfer them on .Org. Maybe she can do them here tomorrow after Sunday lunch.
Neil

 

[acecarlos]

Did some machining & you guys wont believe what I found. Will have more info once I can get pics up to see, so stay tuned to this chanel.
Neil

Ill guess it has to do with the Water Jackets or lack of Water Jackets above the exhaust. I know you Neil mentioned to me via phone a while back you wanted to take a close look at the cooling passages. The beauty of Sand castings is the ability to cast in complicated Water passages through out the cylinder casting. IMO the issue with these is that ONE casting is used for the PV and non-PV cylinders, and therefore the top of the exhaust has little cooling over the exhaust.

This was done to save cost and only have one casting instead of two different ones. On the ProX, they have three different castings, and one is specific for PV's only, the other ones are specific for non-PV cylinders. The ProX cylinders have massive Water Jackets over the top of the exhaust, as well as under and around the exhaust. The key here is 'balanced' cooling all the way around the exhaust.

Without a good balanced flow of coolant you get uneven cooling that leads to premature engine failure like frequent seizures. Having unbalanced coolant flow over the exhaust vs under is directly responsible for a lot of piston seizures we see with these cylinders....inconsistent cylinder expansion.

Carlos

 

[douglas]

yeah that was already posted

 

[acecarlos]

Didn't read through 4 pages, only Neil's post. It is good to know the seizure issues are well known...Regardless; I am Interested In Neil's find.

Carlos

 

[aberegg05]

So the non pv castings cool better than the pv casting?

 

[j250rx]

.........

 

[The Phantom]

So the non pv castings cool better than the pv casting?

No the other way around.. the castings are the same except there is more material left in the cylinder casting on the non-pv above the exhaust because its not machined out for the PV. therefore there is more material to be cooled and its not cooling it as well as if the cylinder was machined out for the PV with less material in that same spot. Hope that makes sense to you.

 

[douglas]

yeah yeah yeah