RX7Club.com - Mazda RX7 Forum - Fuhnortoner's 88 FC "Quest for 400 Horsepower!"

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Quote:

Originally Posted by rx7b13 (Post 12298985)

Haven't read the whole thing, you hit 400?

Meh... I'm predicting around 380 to the wheel but haven't dynod it yet. I haven't ran the nitrous yet, but I have a 150 shot set up, should have me well over 500 for sure. The car is so much fun without the squeeze I just haven't got around to it yet. That, and the fact that I can't find anyone locally who will fill my bottle.

Are you running an s4 engine? And I want to run the bottle too.

Quote:

Originally Posted by rx7b13 (Post 12299008)

Are you running an s4 engine? And I want to run the bottle too.

Nah bro I ended up LS swapping. Don't get me wrong, I've always been a rotary enthusiast, but my wallet couldn't take it anymore. Spent thousands on detonation precaution on my old S5TII engine, flew Steve Kan out, made about 20 pulls and number 21 "she just let go". His words. No lean spikes, no preignition, nothing in the data log, "she just let go".

Anyways, I did some thinking and decided that what was really my goal was having a fast fun car, rotary or not. LS was and still is the most logical thing to do in that aspect, IMO of course.

I suppose I've waited some time to get that off my chest.

Ah, 400 out of an LS is child's play.

Did you rebuild that used 13bt before you ambushed it with a big single?

Quote:

Originally Posted by Narfle (Post 12299036)

Did you rebuild that used 13bt before you ambushed it with a big single?

No I didn't because I had over 100psi on each face.

and I know "30 year old car blah blah" but I was running on ~12psi for the last few thousand miles before the tune with zero problems. And 20 dyno pulls, no exaggeration, before she let go.

Crash bolts. Supposedly 1.5* of negative camber. Think I need more.
https://cimg2.ibsrv.net/gimg/www.rx7...81e719876b.jpg

Quote:

Originally Posted by FührerTüner (Post 12299021)

It's really hard to hear that especially as someone who wants to ditch EJs/Subaru and hope-fulling pursuing rotaries. From one unreliable motor to another I guess.

Quote:

Originally Posted by newbrap (Post 12299296)

It's really hard to hear that especially as someone who wants to ditch EJs/Subaru and hope-fulling pursuing rotaries. From one unreliable motor to another I guess.

Rotary engines are awesome, but if you want big power, be prepared to spend big money. As far as reliability, 10 years ago I had a S4 NA with over 250k original miles, and sold it running.

Here we go again...

Purchased T56 and got a killer deal on a 95% complete black interior.

https://cimg2.ibsrv.net/gimg/www.rx7...41b50b3500.jpg

Simplified diagram for running on toggle switches. Starter, Headlamps, Stop Lamps, and Running Lights.

https://cimg8.ibsrv.net/gimg/www.rx7...bf8f0a86ff.png

Front chassis harness simplified for fuse box delete, EGI delete, starter cut delete, ABS delete, Fuel Pump relay delete.

https://cimg9.ibsrv.net/gimg/www.rx7...d152db38f5.jpg

https://cimg3.ibsrv.net/gimg/www.rx7...0d5c91e5a0.jpg

https://cimg5.ibsrv.net/gimg/www.rx7...df48dd8d86.jpg

My version of Holley's Pro Dash. Mine has a stereo output, a GPS navigation system, and cost 10% of theirs. Also new switch panel and array.

https://cimg2.ibsrv.net/gimg/www.rx7...920bf704c0.jpg
https://cimg3.ibsrv.net/gimg/www.rx7...065ad05ebd.jpg
https://cimg4.ibsrv.net/gimg/www.rx7...43440b6ea5.jpg
https://cimg8.ibsrv.net/gimg/www.rx7...279fe53dc3.jpg

i was reading this going man this is legit and then boom LS swap and i went ohhh no. Then well hell i bet its even faster and more fun now. I am on the fence. rotary giving me issues. I think if it blows again im gonna call it a day and throw a turbo V8 in.

Where did you get those little bridges for the terminal strips? The wiring looks nice.

Quote:

Originally Posted by Shainiac (Post 12332779)

Where did you get those little bridges for the terminal strips? The wiring looks nice.

Gotta love Amazon

5 Pcs Dual Row 8 Position Screw...

Amazon

Under dash harness with FR02 connected.

https://cimg6.ibsrv.net/gimg/www.rx7...9b8d1fc4e5.jpg

After testing my switch panel I realize I have a problem. I've set my harnesses and relay panel up for ground triggers and these rocker switch LEDs are set up for 12v output. Since LEDs are one way, using a ground output doesn't activate them when switched on. The easiest solution I've came up with is disassembling the switches and flipping circuit board 180*. Figured I post it just in case someone else runs across this thread.

https://cimg4.ibsrv.net/gimg/www.rx7...b6fbe7250e.jpg

https://cimg8.ibsrv.net/gimg/www.rx7...fc10b6f159.jpg

Neck is killing me from wiring in this tiny car. Panel installed. Getting closer.

https://cimg6.ibsrv.net/gimg/www.rx7...1bc7aba449.jpg

Battery box and Deka 30 installed. Switches all work great first shot. I even have manual control over the HL motor position, meaning I dont need to use the manual adjustment for the sleepy eyed look.

https://cimg4.ibsrv.net/gimg/www.rx7...f01e638913.jpg
https://cimg9.ibsrv.net/gimg/www.rx7...172a5077d5.jpg
https://cimg3.ibsrv.net/gimg/www.rx7...a89363932a.jpg

How's that little 400cca battery turn over the V8?

Quote:

Originally Posted by Shainiac (Post 12341969)

How's that little 400cca battery turn over the V8?

I dont have my fuel pump wiring in yet, but I did crank it for 3 - 10 second intervals, and that little battery didnt skip a beat. It actually turns faster than the heavy duty battery I had in there before. Lets see how far this 115 dollar battery will get me.

Was wondering what those were for. Should be pretty bad ass.