Well me and my buddy went to the PBR saturday night in ATL. On the way home on 75 I came up on a 3rd gen RX-7. I passed by him and gave him a look and eased on. About 3 cars up i pass a 300zx twin turbo (could hear the blow-off valve). I ease down and the rx-7 catches up with me and not long after we are beside each other, the 300zx has slowed to be beside us as well. So there we are in the 3 middle lanes with a gap in traffic enough to make a nice run, It just doesnt get any better than this...We all slow down to about 50 and the 300zx bucks, i follow the agreement, and the the same by the rx-7. The 300zx takes off, the rx-7 takes off, and after they are both a full car in front i hit it (Anyone who has any experience with these cars knows they are no civic...)Once i hit the throttle hard, they had no chance. at 130 i pulled a full 2 cars ahead of the 300zx and then back off because of traffic, the rx7 never stood a chance....

 

i wish u had a vid because FD's are no joke in a roll race, or a drag for that matter, it would help if u told us wat u got, because, an rx7 with just a turboback exhaust would beat a stock ls1 from anyroll...

 

 

you think its funny but it really would
lets see 250hp+about 65 for full exhaust=315hp in a 2800car, and a stock ls1 is wat 330-350hp stock and weighs 3400lbs
so and 30-40hp doesnt make up for a lighter car with a much higher redline...

 

oh i completely agree!!!! My buddy had a second gen turbo II rx-7 and it was an absolute beast!
But I was very surprised by how much i beat this one by, I am running a 2k SS with bolt ons but it is a healthy one with 359rwhp/370rwtq. The 300zx really impressed me, he for sure wasnt stock though...

and i would have LOVED to of had a vid, a random 3 way is as rare with cars as women!! = )

 

But, you gotta understand weight means alot less from a roll.

Weight matters most from a stop. Thats why it takes more power to get the ball rolling with a heavier vehicle.

 

I do understant that to, another factor is albeit both cars are very aerodynamic, the 7 has less front surface area allowing it to cut in the wind with alittle more ease, not saying the 7 would walk in it it may be back and forth but after the Triple digits the 7 will catch up and begin to pull....

 

The Rx-7 is missing one vital ingrediant to be competitive, torque. The SS probably took off like a bat out of hell right away while it takes the rx7 a little while to get into it's powerband.

 

Don't you think you maybe a "little" too generous with you exhaust power increases?

65hp from a TBE.....?

 

its a turbo car...he is not exagerating at all. A full exhaust on a 3rd gen rx7 will make a ton of power

 

No ive seen alot of gains like this from hanging out on rx7club.com, the factory exhaust is so restrictive its ridiculous, and just upgrading it allows the heat in the engine to escape alot more freely which im sure u know that, and upgraded the airflow ups the boost 2-3lbs and with all that heat escaping it helps alot because these cars really hate heat as do all but these moreso than most...

 

65rwhp from an exhaust. I guess I bought the wrong car then...

 

well ls1s respond quite well to full exhaust as well, rx7's are very very quick cars with the right mods, bith just basic bolt ons the get into the 12's fairly easy, there just very expensive to keep up 90% of the time, and they are not meant to be DD by no means...

 

They are really exensive to keep up! Rotary engines are a whole different field and it takes a russian bomb technision to work on them! IN my buddies turbo II, he was running too lean and blew the a-pex seal. 4500 to fix it!!!! Now a RX 7 body with an LS1 is the way too go! i have wanted to do this swap for a long time and i still plan to one day...

 

how does weight mean a lot less from a roll, weight is always a big factor. Why did my z06 stock with 348 rwhp pull 3 cars on my brother's 375 rwhp camaro from a 40-100 roll? Ill tell you, because of the weight advantage. Stop or roll it makes a difference.

 

I don't know bout that....I had an 04 srt4 and with just intake and a 3in downpipe I would walk rx7s with intake and exhaust....and I know an ls1 is deffinitly faster then an srt4 with those mods

 

u might have walked the FC3S but not a FD, those 7's are no joke...i raced a 7 in my formula off the bottle from a 45-50 roll and by 80 he had about 6-7 cars on me....and from a similar roll a stock c5 vette would put about 3 cars on me...and ive raced an srt with an intake and a turbo back exhaust from a 45 roll, and we were dead even until 100 and then he started to slowly pull away...

 

It was deffinitly a thrid gen.....I can say that I know turbo backs do free up a lot of hp from having a turbo car....but from my expierence the rx7 wasn't as fast as I thought it would be.... don't get me wrong rx7s are dope! And about a month befor that race I was considering getting one....but I couldn't justify payin so much for a car built in 93 and I wasn't too keen on that rotary rebuild process every so often

 

If you are racing, you should already be in your powerband. If you aren't, you need lessons

 

its true on the exhaust a fc t2 gains 47 hp over stock just replacing exhaust. Thats the 2nd gen turbo car. The 3rd gen turbo car starts with 45 more hp the the previous car mentioned. So exhaust would probably be in the 50 to 60 hp range. I used to really be into these cars then i grew up. haha