I have not seen any big power dyno numbers yet . I am looking for a HP series turbo that has good spool an but not spinning the motor to 9k . I currently have a 35r an I dLL 582 on e85 with stock bottom end. So I will be building the bottom end with 10:1 an Ibeams. I would like to be 700hp or close to it. What is everyones thoughts on this?

 

A 5857 is not going to make more power than a GT35R.

For your 700HP goal:

HTA82
6235RSP
6262DBB
HTA86

Those are basically your options...

 

I too like many others thought this turbo would fill the void between a 30R and 35R, atleast that's how Precision were marketing this turbo. Initially the thougths of the 5857R were, quicker spool than a 35R with similar power capabilities. I do not think that has materialized hence nobody posting any results on them. But, maybe someone will and then we can draw conclusions or at the very least, have a comparison of sorts. I was very interested in this turbo. I'm not anymore.

 

Unfortunately new products do get hyped up beyond their practicle potential.

If you look hard enough you will find results for this turbo in the guise of the AMS 750R

.

 

I know stuff gets so much hype . I have a guy that has a 6262dbb here but it has to be revved to the moon to have a wide powerband. I just dont want to get into that battle with trans getting rebuilt all the time . I guess i could just try the 35r with the higher compression an see what I come up with . Thanks for any imput anyone has.

 

The 35R and 6262 will be closely matched in the lower boost area, so either one will work for 600hp. For 700+hp, I would use the 6262 or HTA3586. They really dont need to be revved very high compared with a standard 35R, but they shine at high boost.

 

well you can do the same thing im lookin at doing im looking to go down to blouch to get a 62mm billet wheel put on my 35r but only one word come to mind flow. its the exact same turbo made for buschur racing the 600r cant wait to see how it turns out!!!

 

im runnin a 5857 journal bearing on my brother's 2.3L talon. i have some virtual dyno logs off it but only in 2nd gear as the trans was messed up. should be back up and running by the end of the week i could post some VD graphs on it. feels real strong!

 

Thanks for the info guys