Another factor to consider is altitude. If you're up high, boost retains power better than N/A.

 

I have a B18C1 and i have beaten boosted single cams, they were running somewhat low boost sooo

 

The Y7 makes more powerr on 8-10 PSI. Than the GSR with I/H/E.
But however there are so many variables, What Turbo, what mani, what fuel managment and what kind of tune.
For example: SovXietday had a D16y8 T3T4 turbo, and ran at like? 8 PSI was it?
He put down 210WHP, and 167 ft lbs of TQ.
He also ran a Jackson Racing Supercharger, and only put down 146 whp ( i think) and 111 ft. lbs of TQ.
So you can't really just say Turbo/Supercharger.

 

Probably ****ty drivers and/or weak tunes . Aint no way an N/A b18 was beatin' my single slammer

 

^Is that before or after the rod went thru the block? Just kidding forty!

 

[sm=bustedsign.gif]

before...***!

 

I would concider the swap, if u go boosted and u don't know wut ur doing ull run into a lot of problems, u do know u have to get ur ecu chipped, get a tune and upgrade ur injectors rite, jus becareful it sucks wen u need to go somewhere and ur car needs repairs