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Just another RX-7 Built-Coltboostin Style


coltboostin

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  • 2 weeks later...
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Got the turbo on. Also a correction, its a GT4508r.

 

The downpipe just about bolted up as is-its a hair lose due to the difference in the size of the V band but its good enough for me. :) I made a standard 3.5 inch V band I had laying around from an old down pipe work for the turbo outlet.

 

 

Bridged the gap b/w 3 and 3.5 inch with the China Mig, then hit it with the belt sander to make sure it was flat

 

http://i1003.photobucket.com/albums/af154/coltboostin/LsxRx7/IMG_20160727_193823087.jpg

 

 

Gooped on a good amount of RTV and let it set. Sealed up great!

 

 

http://i1003.photobucket.com/albums/af154/coltboostin/LsxRx7/IMG_20160724_225249854.jpg

 

Oil drain basically bolted up. Oil feed line was just a hair short, but I didn't feel like spending any money on a new one. So I came up with this glorious piece. Pieced together the water lines in the same fashion. BAM! done

 

 

http://i1003.photobucket.com/albums/af154/coltboostin/LsxRx7/FB_IMG_1470105166130.jpg

 

 

Took the car out to make some test hits, and test the gates in various combinations of clammped and working to see hwo the car reacts.

 

http://i1003.photobucket.com/albums/af154/coltboostin/LsxRx7/FullSizeR.jpg

 

 

First impressions, holy FUCK. Butt Dyno says the car is making more power than it ever has with any combo. Seeing 10psi as early as 3500rpm in 4th. 20psi produced pretty violent tire shake in 4th. The car has NEVER done this on these tires, ever. Boost recovery is instantaneous. Also in testing what max boost may be- I saw 25psi with the needle flying to buried when I lifted. FUCK.

 

Still sucks that I dont think I ever gave the On3 a good chance to work with all the wastegate issues, but I will be happy to revisit that turbo at a later date. For now-this girl is a bad bitch. May be on the Dyno Aug 6th time permitting after I am done tuning cars for the DSM Shootout, and should be on track some time in 3 weeks for Shootout weekend.

 

Stay tuned....

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  • 3 weeks later...
  • 2 months later...

With finishing the house, moving, work, and 2 young kids taking up most of my time, the Rx-7 got limited track use on the back half of the year.

http://i1003.photobucket.com/albums/af154/coltboostin/LsxRx7/IMG_20161010_092704952_HDR.jpg

 

Any time I had to drive it I typlically hopped in, beat the piss out of it, and came home. The track events really sucked this year. Plauged with bad luck

 

DSM shootout. Got ONE pass in 6 hours due to oil downs and rain. 14psi. 10.9 @145. 2.1 60 ft on the shake down. Turned it up, never made another pass.

 

Track rental. Made ZERO full passes all day. First pass, my pinion snubber broke in the burnout box, and I grenaded the diff. I brought a spare diff with me. Installed it, and it was JUNK out of the box. Great!!! Another waste of a day.

 

http://i1003.photobucket.com/albums/af154/coltboostin/LsxRx7/IMG_20161009_133241319.jpg

 

http://i1003.photobucket.com/albums/af154/coltboostin/LsxRx7/IMG_20161009_171143287.jpg

 

 

So I caved and tossed a turbo II rear end back in the car which I have been avoiding because I know I will have to get back into 5th gear again. Rear end worked flawelssly on some test hits, and the car had enough steam to roll on a modded S1000 R with a 140lbs rider at only 17psi. Party time.

 

So I make it to the last test and tune for the year at Norwalk. Of course there is a million people there. The first bad sign- I stoped for plugs at Vatozone and they were out of 7's. Mind you, I had NOT changed plugs all year so altough the car was running good, I wanted a freash set to go after that 9.

 

So test hit-car leaves good and easy. 1.6 60 foot click high boost set at 20psi in 3rd, and car breaks up. Try and pedal the boost down, and it breaks up in all of 4th, and 5th. OYE. Let of, fucking thing ran a 10.1@13x. Seriously FML.

 

http://i1003.photobucket.com/albums/af154/coltboostin/LsxRx7/IMG_20161009_112837798_HDR.jpg

 

Take the time to change plugs, and get back in line. 4 hours later then when I get there, and it starts to F'in drizzle. STOP IT. gets rained out!!!

 

So in the weeks after I drove the car to work a few times, and took it to a few car shows. Had some friends over and took it to get some Pizza. It was about 40 deg out and it was just a spin fest to 180mph with 25psi. On the way home, the motor developed a tick. I noticed the oil pressure a little low, so I hung it up for the year. Once I get the garage set up, I'll dive in and see what, if anything, happened. I think it may be time for a rear end upgrade though, because the car depseratly needs a 3.27 gear.

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As noted, the "free fox".

 

http://i1003.photobucket.com/albums/af154/coltboostin/LsxRx7/IMG_20161115_215116333_HDR_1.jpg

 

Let me tell you, this was sketchy- wish we had a video, but we pushed it off end over end-just kind of happened that way LOL

 

http://i1003.photobucket.com/albums/af154/coltboostin/LsxRx7/IMG_20161116_172654221.jpg

 

Yup, it was THAT rust free. Dont worry ford nuts, it was salvage title'd and there is still 972640 on the road

 

http://i1003.photobucket.com/albums/af154/coltboostin/LsxRx7/IMG_20161116_181845983.jpg

 

And, its done!

 

http://i1003.photobucket.com/albums/af154/coltboostin/LsxRx7/IMG_20161116_181942125.jpg

 

 

The Jury is still out on weather it will be better to do it this way, or just buy a cheap comp engineering 4 link kit, grab the welder and go to town. The jury is still out, but at minimum I got a good 8.8 out of the deal, and hell its hard to beat free. :)

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Oh so the picture timeline is backwards then...makes sense now....you rolled it ONTO the trailer....Not off. But Whatever.....I get it I suck. LOL

 

No no, the rear end and anything that bolts to the car was removed. It was in the back of the truck. We drug that thing up the trailer, and literally tossed it off LOL

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