Awesome thread, Good Arguments....Love it!

 

Just say low boost your 360ish and high boost your 400hp lol. but really though i think the ZFR is a good turbo to with for 400. Like it was said earlier good tuning with a nice boost ramp on the zfr will save alot of parts

 

I run the ZFR at 23 PSI and made 397 WHP on 93 octane. ZZP tuned and dyno'ed it themselves. I basically put it on and drove there.

 

Happy dyno sir. But numbers are **** anyways. Did you get a baseline before Zzp Efr?

 

you always have to be talking down to people James. sorry the efr6758 is tiny compared to your super<9000g

 

^^^ owned

 

thats how i made it seem i guess........ do i think they are unbreakable? no because they clearly are along with all the other moving parts in the motor. is a forged motor unbreakable? nope. that can be broken too....sure sometimes you can blame things on pure mechanical failure but a lot of the piston failures/ringland and engine failures ive seen on lnfs show signs of detonation or someone knows that they threw 30psi at it which obviosuly isnt going to last. another problem ive seen is people stay at full load for extremely long periods of time..... engines are designed or built to run at X amount of load for X amount of time. exceeding it can be a killer as well.

you can say whatever you want to say but personally i think the cars can handle the power and WITH A GOOD TUNE behind it there no reason it shouldnt be able to take the power for a good amount of time. before you go hi lighting this and try adding to it NO MOTOR IS UNBREAKABLE. idk if billy briggs, kurt urban, sean from VA speed, or anyone i know that builds seriously great engines or some budget builder doing it in his garage in the dark. nothing lasts for ever but with reliable tuning and a proper setup theres no reason you shouldnt be able to get a good amount of longevity from the car.

like i said i racked up 30k miles, over 100 dyno passes, track time and a lot of spirited back road driving(or lack of since im in il). the only motor work that was done was a set of valve springs when i swapped to the efr and the car held up great with both turbos on there. the efr was by far my favorite.


happy dyno are you kidding me? we made 416whp on my setup at 25psi 6500rpm ways back. trust me our dynos car from a happy dyno as well. zzp uses a different version but they and us mustang dynos. the turbos more then capable of flowing 50lbs a min. just because zzp rates it lower does not change the efficiency of the turbo.

 

i know you and i have had our disagreements but ill second this one.....

 

Hp lifts rings he says

Keep it coming

 

I have run ~450whp and 27psi for over a year. Before that the car was tuned for 27psi with the stock turbo. Then it saw up to 30psi with e85. It has been abused for years. I don't drive it nicely. Still living. Detonation aka knock kills these motors plain and simple. When the piston is still moving up in the compression phase and your air fuel mix ignites prematurely that causes the ring lands to break. Mostly it is tunes with improper fuel enrichment or a spark curve that does not coincide to the amount of boost or amount of air being pushed in the cylinder. End thread.

I laugh when I see tuners tuning e85 and meth tunes with 26 degrees of timing. Did you put your car on the dyno? Did you know your car stopped making more power at 22 degrees. So why 26 degrees? This is the idiocy that breaks motors. The lnf can take some gnarly boost pressures on pump gas. Lower the timing to compensate. Make sure your fuel enrichment is proper.

 

I will be receiving one shortly actually for tuning purposes. Since my ZFR blew, James actually is providing one for me. It is all for testing etc to see how the 25g will do for a stock motor. Don't get me wrong, I'm still getting another EFR when I have the funds. For now I'm dead broke. My car is just sitting and has been for 3 weeks.

I'm sure he knows what the turbo is capable of. He tuned me LOL and I dyno'd my car as well. I hit your numbers too but on e47. Maybe your dyno reads a tad high, or mine reads a tad low. However, I'm sure we can all agree this is a 400whp capable turbo. Still it does take a lot to push the turbo to get that power. I don't recommend that for a DD.

 

I always figure if GMS1 searches close to 25PSI and its a warrantied tune, that has to be the safe zone lol. So this is why im getting a 26PSI tune this summer stock turbo though :P

 

A lot of information in here. Good discussion.

 

I have never heard of that. Gms1 is around 21psi iirc.

 

Considering there dyno does read high I'm not talking down. I mean at least he has dynoed and doesn't come up with some faulty conclusion for numbers lol..

And yes the 6758 is a tiny turbo compared to mine. Your point?

 

Well lets start again... Did I say any engine is unbreakable? I did not. I did however say the pistons are weak (piston rings from higher boost and the rings amusing ringlands issues from unseating. Yes the engine can go if a tune is **** but it also will with a great tune. It always depends on the tune aggressiveness. If your relying on the turbo and not upping timing and ramping boost then itll be better then just putting tons of timing in along with no ramp.


also, if you read through the posts youll notice i was talking about zzps dyno lmfao...
And Borg Warner rates the 6758 at 45/47lbs per min. It's a tiny turbo, the wheels and twin scroll help of course.










i n

 

Lmfao . Did I say that or did I say that higher boost will unseat the rings and cause ringlands issues. Oh yeah that is what I said. Damn.
And higher HP will cause damage. The pistons weren't designed to handle the stress.

Lmfao

 

It is not talking down. It's a fact...... I've seen cars that have dynoed at Zzp and went to a few other dynos and zzps would be highest. Even when using a dynojet. Not alway.

 

Please don't get me started on ZZP and there astronomical dyno numbers. They always seem to have 100hp more than anyone else. How much was it that they made on the stock k04? What did they make on the EFR 6758?

 

the track must be lying for them too. running 10.99 doesn't back up there hp numbers at all right?

 

refer to the link in my signature lol. I have a lot better videos, too. Just thought id add that.

 

^hmm... sommething is amiss. I'd like to see what a mechanical gauge reads. My car did a Max of ~17psi stock and now tuned on 23.5. Ur cars a freak haha

 

No, you said hp

I'm not saying that was your intended meaning, your wording just amuses me at times.

The rings don't come unseated, the ringland collapses out from underneath them.
Slight difference.

 

I ran a 108mph @ 13.76 last summer with terrible 60fts, which is why I installed that mechanical boost gauge; I was curious to what PSI i was pushing to hit the speeds of tuned and bolted balts.

 

I thought the issue lies in the rings not being gapped enough. With high boost they but ends and have nowhere to go thus cracking the lands?