I had my 240z dynoed a few months ago and am still working on it. It made 275 rwhp /280 rwtq. A/F ratio
was a pig rich 10.0 across the board . When the a/f ratio
is right and the timing is set at 36 degree's motor should
do around 290 to 300rwhp. Question is what kind of 1/4
times do you think it is capable in this state of tune? I
am 215 lbs so total weight is around 2700 lbs? Thanks
I love your guys RX7's and would love to build one in the
future!

 

I would have to guess in the low 13 sec range.

 

low 13's is about right my car weighs 2780 with me in it and i dynoed at 270 rwhp and ran 13.2

 

Damn, That sucks. I was looking at a rwhp calculator an
it said 12.40's! That was with 275 rwhp and weight of
2700? I guess I just need to get it done an out on the
track!

 

Man , I just talked to a buddy of mine with a 95 LT1 camaro. He said he dynoed 270 rwhp and ran a best
of 13.40 at 101. His car and driver combo was a portly
3650! I dont see how 900 lbs wouldnt make that much
of a differnce? His sixty foot was ok with a 2.02. He was
on street tires. It seems like it would have to go 12's???

 

OK i got one more for you guys. I am pulling about 250 to the wheels and my car is about 1950lbs. What do you guys think the 1/4 time estimate would be?

CJG

 

I have always heard that 150lbs is good for about 1/10th. I dont know if that is right or not. one of those word of mouth things.

 

The lotus elise rungs mid/low 12's at around 1700lbs making only about 160 at the crank. I would think that 2400lbs at 270rwhp would be good for atleast high 12's.

 

You would run low 12's at that weight.
My car weighs 2700 lbs. on the nose or 2930 with me in it. Yeah... I'm a PIG!!!
Anyway.... I ran a 12.8 with about 280 RWHP.

 

Cool, Thats kinda what I thought. I figured mid 12's.