Hello I have a sleeved gsr block ls crank 84.5mm bore and 89mm stroke (ls crank) forged internals 9:1 compression B16 head valves guides springs retainers you get the picture but I need a turbo that will spool fast and good top end power looking for around 700
on kill but would like to be in the 500s and I need some good cams thanks in advance for your help (and I will be running a skunk 2 ultra street intake)

 

‘reading through my thread might help some, it’s long but you will be able to skip around and see some of the things I’ve done. Depending on your turbo budget you will get lots of different responses.... you might want to set a limit on what you can afford so people chime in with helpful info. My b18c1 build is around 700whp now and should give you some nice insight.....also.... I use Skunk2 Pro1 cams on mine

https://honda-tech.com/forums/forced...-fold-3325704/

 

Couple of questions required to give you a more accurate answer:

- What is your definition of fast spool ?
- Answer the above in terms of power-band required (rpm range)
- Do you want strong top-end, aggressive switch-over (traditional B-series VTEC feel) or a wider, more torquey power band?
- Assuming E85 ?
- Use of vehicle ?
- Turbo budget ?
- Cams budget ?
- What spring pressure are your valve springs ?
- RPM limit of combination ?

>> The Ultra street manifold tells me you looking at more of an all-rounder, with good mid-range power and ~8000rpm peak rpm. In general the new-age 60-62mm turbos are the go-to for ~700whp capability. Vehicle application, preferences and budget determine which direction to go within those options.

 

^^ I love the questions used above here... Absolutely love it. Extremeracer is truly a Jedi-knight in the "Purpose & Expansion" department.

Let's see where this goes?