What will be a better turbo engine for street and racing application?

The first one is: "STROKER KIT - Honda/Acura B18/B20 Series, 95mm Crank, Long Rod Option (5.473"")

and the second is : 89mm LS crank with 5.564 rod custom made pistons

This car is for drag racing and street in the weekend, I am using a t70 turbo and my gold is 400 WHP if is possible a will tray to get this HP with non racing fuel

 

I have found that the simpler approaches leave the less chance of issues if you plan on running on both street and drag racing use. The LS Crank/Rods with a sleeved 84mm bore gives it a great combination for a VTEC engine. Stroker kits are good as well, but If problems arrise, replacement parts and service turnaround times more than likely than not will take a bit longer because of the rarity of the equipment. A True T70 will make 400whp no problem, but if it is one of these EBAY T70s, I won't care to really comment since there are those who will more than likely voice their opinion about such a turbo choice. Personally, I'd never run that thing, but this is not relevant to your question/issue.

bottom line is to keep it simple. You can even do an 89mm stroke, 81mm bore can work fantastic as well. You would easily make over 250ft/lbs of torque with about 350whp. Good luck

 

the problem with a stroker kit is that y9ou woll probably never exploit the gains from it. in the sfwd world, just about everybody is using stock block heights and stock stroke cranks. and they are making great power.

now if you are trying to do that with less stress from the turbo that kinda makes sense.