Vehicle Owner

Member ID: mattsterRX7

Location: Grand Rapids, MI

Vehicle Info

1986 Mazda RX-7

Bragging Rights

  • 1/4 Mile0 sec @ -1 mph
  • 0-600sec
  • Top Speed-1mph
  • HP325
  • Weight2800lbs

Major Upgrades

  • turbo
  • nitrous
  • bore increase
  • port and polish
  • supercharger
  • extrude honed
  • stroke increase
  • engine swap

Ratings

    • Currently 3.3/5 Stars.

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Last updated: Jun 18, 2009

Hits: 97,009

Matt’s Mazda RX-7

  • Currently 3.3222222222222 /5 Stars.
49 guestbook comments

Welcome to my V8 RX-7 project page! Here you will find some very technical information and pictures which describe my experience with installing a LT1 small block Chevy and 6 speed tranny into a Mazda RX-7. Make sure to sign my guestbook!

Page 01: Introduction
Page 02: White RX7
Page 03: Green RX7
Page 04: Engine
Page 05: Let the fun begin!
Page 06: Engine bay work
Page 07: The V8 drop-in
Page 08: IT'S ALIVE!!!
Page 09: Clutch & Radiator
Page 10: Driveshaft & Exhaust
Page 11: RX Unleashed
Page 12: Dyno and Weigh-in
Page 13: Alternator, Fans, Gauges
Page 14: SUSPENSION!
Page 15: Seven Not Stock, 2006
Page 16: Paint & Quarter Mile
Page 17: Saying Goodbye
Page 18: Conclusion.

Well I feel like a great way to start my story would be to telling you just a little about myself. My name is Matt Korthuis, I'm 22 now, but this project started when I was 19 years old. I am currently a student at Calvin College in Grand Rapids, MI. I'm a senior studying mechanical engineering, which is really a tough major... but I know that it's the education I need to get to where I want to be! My dream is to someday to be an engineer in the auto industry turning my passion into my profession. Here are a few pictures as a sneak preview of the pages to come... just to let you know it's worth your time!

mattsterRX7's 1986 Mazda RX-7


mattsterRX7's 1986 Mazda RX-7


mattsterRX7's 1986 Mazda RX-7

Before I begin with my story, I would like to clarify something that's important to me. This website is all about my experience with swapping a V8 into an RX-7. I know that there are many RX-7 enthusiasts out there that believe what I'm doing is an outrage to the uniqueness of the car. If this is you, I want you to know that I have nothing against the rotary engine, in fact from an engineering standpoint, the design is incredibly interesting and amazing to me. I encourage you to read my story and appreciate the car for all of the hard work that I put into it... rather than be angry about the engine I chose.

So on to my story... One freshman college afternoon, I was avoiding homework (as usual) by messing around on the internet when I came across some websites which spoke of some V8 RX-7 conversions. The idea caught my attention... it seemed a V8 powered RX-7 dipped into the best of both worlds: import light weight handling with the power and reliability of a domestic motor. The concept made sense, so I continued to search for information about the possibility of such a swap. I soon came to realize that the actual conversions weren't that complicated, hardly any modifications were required to fit the motor in, and can be done for relatively cheap. To add to the fun, the power to weight ratio is absolutely stunning, easily attaining 12's and lower in the 1/4 mile! Being a very poor college boy with a need for speed, I decided to give it a shot with a budget of $3000. I decided to work with 2nd generation cars (1986-1991) because they can be found for very cheap and it has a great bodystyle in my opinion. So... the first step in my project was to locate a 1986-1991 RX-7 with a nice looking body but in tough mechanical condition. My goal was to find one for less than $1000, which may sound difficult, but because there are so many RX-7's out there with non-running engines, people have been known to sell perfect chassis cars for next to nothing.

Guestbook

Displaying entries 1-5 of 49

Pivotto  

Posted by: Pivotto

08/22/2009 01:52PM

I am super excited to see how you're 3rd Gen. comes along, good luck man.

jmiller18  

Posted by: jmiller18

06/15/2008 11:45PM

DUDE HELP ME OUT. YOu seem very intelligent about this. I have a V8 myself and am looking to get some better times. Im only running a 14.32 at 103 and i cant get any better but the mods prove to be around 400hp at the crank. Shoot some ideas my way please and thanks.

dough957  

Posted by: dough957

06/03/2008 10:05PM

hey man whats up with u...most peoples pages just have stupid useless wording that waste your time, but i just read like 15 pages n every bit was worth it---u did a hell of a job on that rx7, i found your page by searching lt1 motor swap in the lil search engine thing--- what are some pointers i need to know? i already pulled the huge ass 472 out of the caddy, i wanna do a ls1 or lt1 swap i know it's lighter and gonna have more horse power, but i think the lt1 is gonna b easier to find because it's a zillion bubble caprices and impalas in the dc,md,va area---can you kinda give me a run down of what i have to do to make it work

92purplebubble  

Posted by: 92purplebubble

04/07/2008 07:53PM

Very nice i was thinking about doing this setup but the car rides good and motor is still good but when itt goes trust me ill drop a 421 carburated v8 with a turbo 400 and a 5500 stall

GordiniRX7  

Posted by: GordiniRX7

03/25/2008 08:22PM

Dude both your cars are bitchin'!
I cant wait to see your FD done!!!
Nominated for showoff!!!
take a look at my fc ant tell me what you think about my plans,after all, Im only 15

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Vehicle Owner

Member ID: mattsterRX7

Location: Grand Rapids, MI