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1974 13b-re Nova

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Old 07-12-10, 09:49 PM
  #476  
Learns the hard way.....

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Started getting really sick of hearing people tell me how stupid it was to put a tiny little engine in a "heavy muscle car". So, I ordered a set of Longcare computerscales, and the verdict is in.........2562 lbs. This is with 15 gallons of gas in the tank, and without me in the car. The weight will go up slightly as I have yet to add the front sway bar, passenger seat, running light wiring, and lexan driver and passenger windows. This weight is also with the "bling" wheels/tires, not the slicks and front runners. So, I think a reasonable drag race weight is around 2550-2575 lbs or so. Weight balance isn't bad either @ 52.8% front and 47.2% rear. The balance isn't quite rx7 good, but pretty damn good in muscle car land.

Now, if I can just hit the 600 whp target, this thing is going to be retarted!
Old 07-12-10, 10:50 PM
  #477  
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You will always have haters voicing thier stupid opinions. The truth is that it takes ***** to do what you have done and its one of a kind. you did it and you shared it with everyone here. that's a job in itself. you put your heart and soul into this project. be proud of it no matter what.
I quietly followed your progress thru this project and not the first to say that your your fab skills are sick.
YOUR CAR IS SICK. ENJOY IT. THE HATERS WILL ALWAYS BE HATING.
good luck
Old 07-12-10, 10:52 PM
  #478  
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Originally Posted by 13brenova
Started getting really sick of hearing people tell me how stupid it was to put a tiny little engine in a "heavy muscle car". So, I ordered a set of Longcare computerscales, and the verdict is in.........2562 lbs. This is with 15 gallons of gas in the tank, and without me in the car. The weight will go up slightly as I have yet to add the front sway bar, passenger seat, running light wiring, and lexan driver and passenger windows. This weight is also with the "bling" wheels/tires, not the slicks and front runners. So, I think a reasonable drag race weight is around 2550-2575 lbs or so. Weight balance isn't bad either @ 52.8% front and 47.2% rear. The balance isn't quite rx7 good, but pretty damn good in muscle car land.

Now, if I can just hit the 600 whp target, this thing is going to be retarted!
**** what people say. there just mad cause they didn't think of the idea first. and there just hating on you cause they probably could never afford a project like that, and they wont even do it as good as you.
Old 07-13-10, 12:39 AM
  #479  
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People hate what they don't understand and they condemn what they fear most in themselves. I've been following this thread from the get go, so I imagine I shouldn't have to tell you to let it roll of your back. But still, I should say you've got a great thing going here and I envy your project for originality and craftsmanship.
Old 07-13-10, 12:59 AM
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Well, at 47 I'm a muscle car fan and an rx7 owner. I did the camden to my 7 so i could get some torque and enjoy what the FB has to offer. I would love an old bigblock muscle car, but not on my budget.

As for your car, i have nothing but compliments!!! Very "VERY" cool project!
Old 07-13-10, 05:11 PM
  #481  
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May I just add that the weight you have listed is around the weight of a s4/5 RX7. If you get to 600 this thing is going to be off tap

Tone
Old 07-13-10, 05:51 PM
  #482  
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AMEN To that!!

Thats what I'm Talking about, you have supporters here!



Originally Posted by 74MZDRX3
You will always have haters voicing thier stupid opinions. The truth is that it takes ***** to do what you have done and its one of a kind. you did it and you shared it with everyone here. that's a job in itself. you put your heart and soul into this project. be proud of it no matter what.
I quietly followed your progress thru this project and not the first to say that your your fab skills are sick.
YOUR CAR IS SICK. ENJOY IT. THE HATERS WILL ALWAYS BE HATING.
good luck
Old 07-13-10, 07:32 PM
  #483  
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they're just hating cause their muscle cars don't come close to yours! all that matters is that you like/love what you have created. the car is bad ***, imo.
Old 07-14-10, 02:10 AM
  #484  
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Your the man! Job well done! The hell with the haters and enjoy your awesome ride!
Old 07-14-10, 07:15 AM
  #485  
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Originally Posted by 84stock
Well, at 47 I'm a muscle car fan and an rx7 owner. I did the camden to my 7 so i could get some torque and enjoy what the FB has to offer. I would love an old bigblock muscle car, but not on my budget.

As for your car, i have nothing but compliments!!! Very "VERY" cool project!
Well said!! Wish I had the skills and cash to pull something like this off!!! Just blow right by the haters.
Old 07-14-10, 10:53 AM
  #486  
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You have the best of both worlds!!! I like muscle cars as well as rotaries, Japanese imports for that matter, but who needs a big giant V8 motor with a blower to produce HP, if you can do it with a rotary, more power to you!!
Old 07-14-10, 12:05 PM
  #487  
Learns the hard way.....

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I've had a big block with an 8-71 blower and dual quads. You talk about a top heavy bastard! The thing handled like a pig on roller skates!
Old 07-14-10, 05:45 PM
  #488  
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Originally Posted by 13brenova
I've had a big block with an 8-71 blower and dual quads. You talk about a top heavy bastard! The thing handled like a pig on roller skates!
LOL...I love rotaries even though the trouble I've been with mine, to me, its fasinating that a tiny little engine can produce big power! You're doing a beautiful job on your Nova, who cares what other people say about what you did to your Nova, as long as you're happy with it, it what counts Big props to you!!!
Old 07-14-10, 07:28 PM
  #489  
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O
M
F
G

I glanced at the title on the main page and though 'hmm, that might be interesting'. After reading through all 20 pages, I must say this is quite possibly the sickest thing I have ever seen. The fabrication quality is just astounding. I could almost to the pics of that manifold. Hats off to you my friend for doing something most of us could only dream of.

Old 07-14-10, 07:46 PM
  #490  
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AWESOMELY BRILLIANT!!!! Keep it up....

The only slightly negative thing I have to say, is that it seems strange to have that rotary sound coming from a Chevy Nova, when I keep thinking there was a V8 in it. If you know what I mean. But other then that weird feeling this build FKN ROCKS!!!!
Old 07-14-10, 10:38 PM
  #491  
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Originally Posted by Gryffinwings
AWESOMELY BRILLIANT!!!! Keep it up....

The only slightly negative thing I have to say, is that it seems strange to have that rotary sound coming from a Chevy Nova, when I keep thinking there was a V8 in it. If you know what I mean. But other then that weird feeling this build FKN ROCKS!!!!
It's no different than when you see/hear an RX-7 with a v8 in it. I love it, this is back at em. You should post this up in the other engine forums, just to mess with those guys over there. lol
Old 07-16-10, 09:56 AM
  #492  
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Congratulation with the whole process, I would gladly appreciate that you race against a swapped V8 RX-7... This would be Epic!
Old 07-16-10, 12:13 PM
  #493  
Learns the hard way.....

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Originally Posted by wankelgrandfather
Congratulation with the whole process, I would gladly appreciate that you race against a swapped V8 RX-7... This would be Epic!
Epic indeed!
Old 07-16-10, 12:47 PM
  #494  
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Originally Posted by wankelgrandfather
congratulation with the whole process, i would gladly appreciate that you race against a swapped v8 rx-7... This would be epic!
ditto!
Old 09-10-10, 01:08 PM
  #495  
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This is a very cool project!
Old 09-11-10, 03:37 PM
  #496  
Learns the hard way.....

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Went to the dyno today to see what the car would put down. Started off at 17 psi, and was pretty dissapointed with 376 whp. Air fuel was really rich at about 10.0, so we leaned it out about 1/2 a point to 10.5 or so. Power jumped up to 395 whp.

Next we bumped the boost up to 21 psi and ended up with 457 whp. Air fuel was still a little rich at about 11.0. I think there is still another 30-40 hp in the tune without cranking up the boost, but with my next-to-zero experience in tuning rotaries, I'm reluctant to lean it out further and play with the timing. It's time for someone with some experience to get their hands on this thing.

I was very happy with the results until I poked around the forum to see if my results were about par, and I saw a number of posts where people are claiming 600 whp at 20 psi! Nevertheless, it was a good day without a BOOM!

The dyno was having problems picking up the spark, so unfortunately the graph is in mph. All pulls were upto 8000 rpm. It looks like I'll need to swap gears for a 4.10 or find some 31" slicks or I'm going to run out of RPM top end at the track. Their air fuel was kind of flakey too, so I tend to believe the wideband trend from the Haltech. On all but two of the runs, the dyno's air fuel read a constant 14.7 afr?!

Next, I think I'll do a boost leak check and look for a tuner.
Attached Thumbnails 1974 13b-re Nova-before-after-jpeg-.jpg   1974 13b-re Nova-21-psi-trend.jpg  
Old 09-11-10, 03:39 PM
  #497  
Learns the hard way.....

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Videos....
http://www.youtube.com/watch?v=5-IqrcELG4A

http://www.youtube.com/watch?v=Oeri9V40Ecc

http://www.youtube.com/watch?v=uZwdsTtLOkA
Old 09-11-10, 07:53 PM
  #498  
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You'll get there man, I am sure with some tinkering you can or take it somewhere else just to see.


Old 09-11-10, 10:07 PM
  #499  
PSHH! PSHH! HEAR ME NOW?

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Dude. Your finally getting there. But your right. At 20 psi, you should be around the 550-600 rwhp range. Keeping a consistant 12.5ish afr under boost would net you alot better results. I am putting a little over 400 rwhp at 15psi. The highest my AFRs get under boost is in the high 12s. Guys like Steve Khan make their most HP pushing in the high 13s. High 13s kinda scare me though.
Old 09-11-10, 10:14 PM
  #500  
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Congrats on not blowing up the engine. Like what other people have said, with an experienced tuner you should get alot more power. You're still way rich at 10.5.
I didn't see it or maybe I missed it but what fuel are you using?


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