7K don't bother, but for 600 whp i will tell you what I was told. You'll regret not spending the money exactly 12 months later. The turbo you need to make 600whp will make 650 at lower boost with good cams. Give yourself a head start. Spend the money now instead of later and more. One labor bill is better than 2.

 

Ok last question do you see any sens to go with rev up cams insted of non rev up My friend sent me rev up intake cams and I can use them

 

That would be a bit out of my depth, I would call a shop to answer that question. I think it has more to do with proper cam phasing than anything, it may have a slightly higher lift and more duration but it may not ever time out correctly. I haven't heard of anyone running that setup, would be interested to know as well.

 

Short update the car is running at 20psi 650hp
Only one problem which I currently have is that boost starts from 3.5k rpm and full boost is on 4.5k rpm so late. Maybe due to the fact that I took rev up cams

 

Wow. Thats aweswome. What turbo kit are you running btw??

 

Greddy 18g with haltech platinum

 

Your running twins and your not at full boost untill 4.5k??

 

Yep, I checked compresion level and it is 116-119 psi on all pistons I have no idea why twins spool so late when I had OEM engine my turbos risen at 1,5k RPM

 

Have you pulled the turbos out and make sure they still spin freely?

 

Have you drove it on the streets yet? Any overheating issues? Hot start issues?

 

I didnt check turbos before build, my mistake but turbos are rather ok, no signs of oil everything is dry and they stable holds boost, besides this no any over issues. I track this car rather often mostly drift but time atack as well and no problems with overheating i have oil cooler. Coold start depends on proper tunning, correction settings additionally I increase RPM to 900 and works perfect