Quote:
	
	
		
			
				
					Originally Posted by  Mazdabater
					 
				 
				Odd.  My FC when it was a very similar setup stock turbo, stock fuel pump/injectors with an extend port made 220hp but did 13.5 @ 104mph down the 1/4.  I thought the mph would be higher for 280hp. 
			
		 | 
	
	
 what so odd? on a previous run she did 105.66mph and also had clutch issues,(slipping from second gear on) the clutch slippage will cause a low mph. and your missing the most important factor. this is a rookie driver. this is my kid's 3rd time at the track, and she barely knows how to get the gears in. in-experience plays a huge role in drag racing. so i'll keep updating her progress..