racing beat fuel cut controller..

yes, this is my kid's rx7. you could follow her build and progress on my shops facebook. search for Arp shop in fb

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.

Ito, honestly, i hear you on that point you made about this being enough for the street. as you've shown, it can be done with mostly stock equipment. as usual, great work!

does she have a sense of what's next or are you the driving mind behind the car's development?

Based on HP alone, I did too, but 1/4 mile times and trap speeds also depend greatly on the driver's response time off the line and how well the tires hook up and get the car moving. You can have 1000 HP, but if you sit there spinning your wheels off the line it's going to sap your trap speed & 1/4 time.

^if i recall, she was having issues with the clutch. that sounds like more than enough to cause any performance discrepancies you find in the time and trap speed.

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..

Jason, she needs tons of practice with the current set-up.. considering im dealing with a green drag racer i would say she has potential..

don't forget the weight of the vehicle vs hp also determines E.T./mph

Her 60ft time is excellent. So therefore what I'm getting at is the mph isn't there for 280hp. Obviously there is no traction issues. As for weight and hp I'm comparing 2 very similar setup cars.

seems like you dont have much drag racing experience, when a car is SLIPPING A CLUTCH, the car is basically running still. forward momentum is sacrified and E.T./MPH is effected. it's that simple. this 13.0 run was a no where near perfect run. I addressed that a few times and you still don't get it. According to her 60ft mark she should've ran 12.88 but she didnt, showing some issues with in the run. and as far as weight, i'll get some numbers soon. car should run some where between 12.5 -12.6 i'll keep updating her progress

you want to compare 2 similar cars? she went half a second faster then you while the clutch slipped most of the quarter mile. takes alot more then 220rwhp to do that. a comparison cannot be done until the car has a clean run with no clutch issues. hope this helps..

I did a 2.0 sec 60ft so that explains most of the e/t difference. I doubt the clutch was that bad or it wouldn't have gotten off the line so quick. It should be pulling 110 or so mph.

your not reading correctly, car had clutch issues from second gear on and almost to the finish line. clutch was an issue. and im thinking im wasting my time with you. just hang around and wait for updates.. :beatdeadhorse5:

Knowing Ito we will soon see 300HP with this same setup!!!...nice combo for a first gen