I just fixed my secondary turbo issue and getting a 11-8-10 pattern now, only mods are chopped airbox with new stock filter and a 3" downpipe

it feels pretty good now with the boost on par, what should it run in the 1/4?

what top speed should it hit?

can it walk ls1 fbodies?

 

1/4, about 13.5 if you drive pretty good.
Top speed, however fast you can go. I have seen people peg the speedo.
Can it walk ls1 f-bodies. NO. Unless they suck at driving.

 

not even from a roll? hmm, feels pretty quick to me

 

^Give it a try and let us know.

 

You're hitting 11psi with only a chipped airbox and DP?

This eludes me to my small preminition that perhaps even the 3 mod rule shouldn't be encouraged. I have a feeling (from what I read of other's experiences), that going the DP/CB/Intake route (those being the ONLY 3 mods) will result in "some" boost spike. While 11-8-11 may be bearable, it certainly isn't "right". Lean or rich are both problems if left alone for a while.

I think I am going to invest in a PFC before most other mods than the DP/CB I am about to have in order...hmmm

 

i doubt an FD has sufficient aerodynamics to hit 180 in stock trim..

unless someone can clarify that it can

 

I think i'm gonna video tape a race between my stg4 wrx and my rx7, i bet the 7 isn't TOOOO far behind

 

I've hit 160-165 in stock trim.
It's certainly not aerodynamically pleasant, but certainly possible to get close.

 

8 flat with octane booster
320
never (but twice on sunday)

 

douchebag.

 

What was the solution to your boost problem?

 

13.7@102 mph
165 mph
no, not from a stop and certainly not from a roll

 

boost problem was the solenoids switched around

 

I thought a strong all stock FD can hit 13.5 in the quarter with a good driver

with the cheap airbox mod and a DP the same good driver can do better...

It depends on how well you drive the beast.

Wanna go try out in Milan Dragway this Thursday (6/9)? Gates open at 5pm for a private event that I was invited to and I can bring some others with me. $40 entrance fee for 3 hours of racing with a limited number of cars so you get more passes. Check www.mirotaryclub.com for more details

 

Only a few drivers have hit those times with a stock car, one of them fully admitting to driving the car so hard it would make you cry (powershifting, etc). The typical driver with the typical car gets what the magazines got -- very high 13s or very low 14s.

 

The car is very aerodynamic. With a Coefficent of Drag of 0.29, it is better than the all-mighty Mclaren F1 car. The problem is, the RX-7 just doesn't have the power to get it to 180 from the factory.

For comparison:

Vehicle Year and Model Cd Area (m2 ) Area (ft2 ) Cd x m2 Cd x ft2
1994 Mclaren F1 0.310 1.784 19.20 0.55 5.95
1993 Mazda RX-7 0.290 1.796 19.34 0.52 5.61

From the factory, the car is aerodynamically limited due to the lack of horsepower to the max speed (with no wind conditions helping/hurting, nor incline) of 164.85 MPH @ 6595 RPMs.

With 325 BHP and 285 TQ, the car will achieve 175.61 MPH @ 7011 RPM's.
With 385 BHP and 330 TQ, the car will achieve 182.58 MPH @ 7279 RPM's.
With 425 BHP and 380 TQ, the car will achieve 185.53 MPH @ 7392 RPM's.
With 475 BHP and 415 TQ, the car will achieve 189.68 MPH @ 7552 RPM's.
With 500 BHP and 435 TQ, the car will achieve 191.49 MPH @ 7621 RPM's.

Now, take out the 4.11 rear end and insert the automatics 3.90:

With 325 BHP and 285 TQ, the car will achieve 177.96 MPH @ 6755 RPM's.
With 385 BHP and 330 TQ, the car will achieve 186.07 MPH @ 7052 RPM's.
With 425 BHP and 380 TQ, the car will achieve 189.74 MPH @ 7185 RPM's.
With 475 BHP and 415 TQ, the car will achieve 194.38 MPH @ 7355 RPM's.
With 500 BHP and 435 TQ, the car will achieve 196.47 MPH @ 7431 RPM's.

With the 4.11 rear end and a 5mph tail wind:

With 255 BHP and 217 RQ, the car will achieve 167.97 MPH @ 6299 RPM's
With 325 BHP and 285 TQ, the car will achieve 181.39 MPH @ 6739 RPM's.
With 385 BHP and 330 TQ, the car will achieve 189.48 MPH @ 7059 RPM's.
With 425 BHP and 380 TQ, the car will achieve 193.15 MPH @ 7191 RPM's.
With 475 BHP and 415 TQ, the car will achieve 197.81 MPH @ 7358 RPM's.
With 500 BHP and 435 TQ, the car will achieve 199.78 MPH @ 7428 RPM's.

 

^^thanks

i didnt know that info

 

brought back from the dead:

i did 13.4 at 102 with a 1.99 60 ft on stock sized street tires, my first pass at the track, with a downpipe and intake.

i now have a high flow cat and a catback is on the way, do you think i can get into the 12's with that?

 

I'm in the same boat as you. I only have a DP as an engine mod, but I'm waiting for intake/CB until i get a PFC. I'm still happy with the performance of my car as it is anyway, so I'm in no hurry to add more.