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I got mauled by an RX7

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Old 01-31-2010, 02:15 PM
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Originally Posted by Photochop
the dude in the rx7 trapped 124 he said, he won't need 600+ to run with him, my 3600lb turbo z28 that made 450/550 went 11.20s and trapped 124. Unless the dude in the rx7 just wasn't gettin any traction at all in the first 1/8 of the track, it wouldn't take more than 500/500 to run with it in a full weight car.
Exactly my thoughts. The golden rule in the 1/4 mile of: "100pounds=10rwhp= .10sec" is still in effect. It can be skirted and blurred with gearing and amazing 60' times but for 10 second on up cars, it's pretty much sacrosanct.



Edit: "Sacrosanct: Treated as if holy; immune from criticism."
Old 01-31-2010, 02:20 PM
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Now Imagine your engine in a 2800lb Rx7.

If you can't beat 'em, breed 'em out HA!
Old 01-31-2010, 02:29 PM
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^^hahaha, that would be awesome, here are a couple pics of the rx7



Old 01-31-2010, 02:31 PM
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****, imagine my ZX14 engine with a 12psi turbo setup making a rock solid 350rwhp in that RX7. Talk about power to weight! I bet my bikes motor doesn't weigh more than 200 pounds WITH the transmission attached! A chain drive is pretty damned efficient, too: Figuring out the rearend would be a bitch though.
Old 01-31-2010, 03:01 PM
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Originally Posted by Sticks n Stones
****, imagine my ZX14 engine with a 12psi turbo setup making a rock solid 350rwhp in that RX7. Talk about power to weight! I bet my bikes motor doesn't weigh more than 200 pounds WITH the transmission attached! A chain drive is pretty damned efficient, too: Figuring out the rearend would be a bitch though.
13brew's are heavy, almost as heavy as a LS1 :truestory:
Old 01-31-2010, 03:25 PM
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Originally Posted by baalic
Those RX7's can get pretty damn nasty when done right.... I'm sure the RX8's can too but from everything I have heard, most Mazda guys prefer the RX7's more...
Because RX7's are available with boooost... RX8's not so much.

Originally Posted by whiteseven
Now Imagine your engine in a 2800lb Rx7.

If you can't beat 'em, breed 'em out HA!
sacrilage!!!

Originally Posted by boostedbuford
^^hahaha, that would be awesome, here are a couple pics of the rx7

]
nice... i see he has all the 99-spec goodies

Originally Posted by boostedbuford
Heh, and I thought it was just my roommate that got creative with oil catch cans... I'll see if I can dig up a pic of his engine bay...
Old 01-31-2010, 04:16 PM
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It doesnt take a lot of power to make an rx7 pretty fast
Old 01-31-2010, 04:57 PM
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That's a very nice looking RX-7.

Are you planning on getting the tune fixed up before the nitrous race? I'm guessing that the 522 rwhp you made in the 100 shot was when you were making 415 rwhp on motor? On the same setup that you trapped 127 I think it will be a damn close race.
Old 01-31-2010, 05:09 PM
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Originally Posted by ScreaminRedZ
That's a very nice looking RX-7.

Are you planning on getting the tune fixed up before the nitrous race? I'm guessing that the 522 rwhp you made in the 100 shot was when you were making 415 rwhp on motor? On the same setup that you trapped 127 I think it will be a damn close race.
Oh absolutely it will be re-tuned before the nitrous race I'm not gonna risk it popping the motor just for a little bit of pride, you're correct I made the 522 when I was making 415rwhp on motor, but I had 50/50 mix pump gas and 112 race gas on that pull.

My motor is forged and set-up for nitrous so If I reallllly wanted to I could up the shot to a 150-200, but I probably wont, My goal for the car was to have a reliable 10-sec car without pushing it too hard.

Here is a picture of the dyno sheet, as you can tell it's not really running like it should, for some reason I said at the top of the page I was running rich, but actually I'm running quite lean with way to much variation within 3 pulls in the air/fuel. The tune is a little to much on the edge for me to want and go pound on it.


I dont have the rest of the dyno sheet from 5.5k and up, I spin the car to 6800 right now but I should probably lower it.
Old 01-31-2010, 08:04 PM
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The RX7 could always up the boost for more power, if he has the fuel setup.
Old 01-31-2010, 08:07 PM
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Good death. That's a nice RX7.
Old 02-01-2010, 07:39 AM
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Any idea on what's causing the loss of power? The car definitely runs strong at the track, good luck getting it back in fight condition!
Old 02-01-2010, 08:34 AM
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That RX7 is bad-assed. I loved them when they came out. The RX8 not so much.
Old 02-01-2010, 10:04 AM
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nice death. I have always been fascinated with rotary engines, but the damn apex seals would always have me worried.
Old 02-01-2010, 10:29 PM
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Originally Posted by scars_of_carma

sacrilage!!!
Nevar!!! (this one is mine)



Old 02-01-2010, 10:37 PM
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^That's awesome, I'd love a ls1 swapped rx7 someday, did you use a Hinson conversion kit?

Originally Posted by ScreaminRedZ
Any idea on what's causing the loss of power? The car definitely runs strong at the track, good luck getting it back in fight condition!

Pretty sure it's just a tune issue, when it was first tuned it was tuned on 93 octane, Nebraska started switching all the gas station's to 91 so I just pulled a couple degree's of timing instead of getting it properly retuned. Pulling the timing I'm assuming is causing the loss in power. Also according to Hptuners my 02's arent heating up correctly, which may or may no be causing the varation in air/fuel idk. So there is a couple thing's I need to get done so it's back where it needs to be.

Last edited by boostedbuford; 02-01-2010 at 10:44 PM.
Old 02-01-2010, 10:41 PM
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Originally Posted by 1SLwLS1
nice death. I have always been fascinated with rotary engines, but the damn apex seals would always have me worried.
Haha yea very true, the guy's RX7 I raced has been through 3-4 motor's already. He says "Rx7's with a rotary are like a wind-up toys, sometimes the battery's just need replaced"
Old 02-01-2010, 10:46 PM
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Originally Posted by boostedbuford
^That's awesome, I'd love a ls1 swapped rx7 someday, did you use a Hinson conversion kit?
No this kit is made by Samberg Rod and Custom. Uses C6 mounts.
Old 02-04-2010, 09:35 PM
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Originally Posted by whiteseven
Nevar!!! (this one is mine)



Nice, you don't see black fd's too often. I will say this... the 13BREW is a godawful engine to work on or service... a V8 can't possibly be worse no matter how tight a fit it is.
Old 02-05-2010, 01:50 PM
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Originally Posted by boostedbuford
Haha yea its fitz's(john's) rx7
yea his car is nasty, cool guy to cruise with too.



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