Deep as in 3mm not 2mm?

 

No .... Deep as in , same depth as RX7 apexs .

 

I am getting ahead of myself. What I am taking away from this is that high psi will blow my stock seals into jagged little pieces. Obviously alloy is the way to go in a turbo motor, but that's all I know.

 

wouldn't that be 3mm...

Also would require some milling work...

Travis

 

No it wouldn't . 2mm and 3mm refers to the width not the depth .

 

Rx7 seals are 3mm are they not?

Milling required was the other statement in reference to depth. I should have been more concise in my statement

Travis

 

No ... they are 2mm.

 

Well ****...

My mistake then I apologize.

Could've sworn I read the 3mm seals come out of the 13b rew rx7 motor..

My bad brett, thanks for the schooling.

Travis

 

Williard, I was under the same impression. Brettus, thank you for your information. If I were to run my turbo at higher pressure, obviously detonation is a problem. That means water methanol, and an upgraded fuel pump, to make sure we dont go lean. Water methanol means a better ignition system. Am I leaving anything out? (Besides a rebuild once I blow my engine up)

 

Water/methanol is not that effective at solving the detonation problems caused by high backpressure on our engines . In my experience .

 

Thanks!

 

I have the toasted engine to prove it

 

I think your engine has been through more hell than mostly daily drivers, turbo or otherwise

 

Yes it has . But the day it went , I know exactly what the conditions were ....

 

It will act as a safety net for bad gas....and will decrease the charge temp considerably....both are effective at preventing detonation. That in itself is worth the price of admission in my books

 

I agree, Dan. It was on my list, but it was backordered (of course they let me buy the damn thing, charge my credit card, then tell me it's backordered!), and we simply ran out of time. I am hoping that the 93 octane here in Texas is good enough for low psi. Hopefully once Ari at RX7.com gets his dyno running again, we can install water injection. If it's good enough for his red white and blue rx7, it's good enough for me!

 

Totally agree , which is why I continue to use it . Under some conditions it is largely ineffective however . One of which is when you try and make too much boost on a tight turbine housing ........

 

Thats directed at me and my .67 housing. Thanks, Brett.

 

FWIW
I have found running a rich mixture is way more effective than the W/M when you are on the edge of detonation ..... And I've run enough water to drown the spark then backed it off a little .

 

The actual intercooler efficiency/outlet temperature will impact it a lot. You can't just assume his results will be the same as yours. Might be worse, same, or better just depending on a variety of factors. It's a tight bousing, but also a large turbo. You only just got a large turbo. That's a big difference from your modified Greddy experience, which had a small turbine. To the best of my knowledge you haven't run a tight housing on the large turbo you just upgraded too.

 

True . Putting his on a dyno with full knock monitoring to see where the limits are will go a long way to ensuring the boost levels are safe .

 

This is why we pay for dyno tuning!

 

What do you call kull knock monitering?

 

Most dynos (around here anyway) have knock monitoring equipment . But it usually is just the operator having ear muffs on connected to a knock amplification sensor .

 

I was going to suggest running ethanol, but I keep forgetting that not everywhere in the country has E-85 in abundance like we do in North Dakota.