Another SR20DET'd RX7
 

Please don't hate me for not using the rotary. You may remember the SR20DET'd FD. I built the manifolds and most of the crossmember stuff on that car. Take a look under the projects section of my website.
www.SpeedShopThagard.com
I have recently purchased an 87 GXL for $200 in very good shape and will be doing this swap again. I have 2x GT25R turbochargers and a 24"x12"x4.5" Garrett intercooler for it. BTW, I can get you large Garrett intercooler cores for cheap ~$350 and also very good deals on new Garrett turbochargers including GT turbochargers.
Anyway, I have a few specific questions and I have done a search already. Will adding a Kaaz LSD be sufficient for 600hp@wheels? Do I need to upgrade the axles as well?
Who makes a front air dam that will allow me to mount this large intercooler? BTW, I ran across some pics on this site of a black FC with large front mount and cool looking low profile rear spoiler, but cannot seem to find the pics again. The car was beautiful and had some nice looking rims. Thanks for the help and I will update as I make slow progress.

The stock turbo rear end will be ok over 400rwhp so I would expect the KAAZ to holdup to 600rwhp as well as anything you can put back there short of narrowing it up and putting a solid domestic rear in. I do not think the Kaaz will bolt into the stock NA housing so you may have to go with a Turbo rearend then swap in the Kaaz. I haven't really ever heard of anyone snapping TII axels, though I am sure it is possible. Start out with stock and see how it goes, you may run into a problem since the SR20 may be a little torqier than the stock rotary.

I have a 1989 Turbo II with no motor in it currently. I am very interstested in the possibility of swapping an SR20 into it. Any information you could provide I would be VERY greatful. I am jut a little to the west of you in Pensacola, and make trips over to Tally frequently.

Shoot me some e-mail sometime, I am pretty familiar with the FC chassis, and you look to be familiar with fabrication and the SR20, I'd love to trade some info.

I hate engine swaps in the RX7, but I can't put down someone running a 10.5 1/4 mile with over 500 HP. Thats awesome man, and I can't wait to see the new project finished.

-Joe

take that engine out and put a Rotary back in. Whats the point of owning a 7 if it doesnt have a soul ?

Nice!!!

I want to see someone do a 20B into a Dodge Omni :) 1200lbs + 20BTT = :bigeyes: :bigthumb:

The Dodge Omni GLH-S spoke for itself.

Carol Shelby was in some interesting projects.

If I had to put a 20B into something, I'd drop it into a mazda 323.

what about a 20btt in a miata? thatd be beast

I am with you! Small and fast is the best way. :D :D :D

The car came with no engine or tranny. Actually, the 10.5 was not as impressive as 139.2mph. Maybe this pic will make you feel better as I also have a twinturbo datsun 240Z.
I sold this guy a 60-1(p-trim .82 a/r) for his setup. It is a 13B in a Datsun 240Z. The funny thing is although I love the 240Z I have no problems with folks wanting to do engine swaps! Rotary guy seem to be too sensitive to this topic.
http://www.datsunracing.com/turbofit.jpg

Duplicate:eek:

sweet! good luck man!

No SR20 will make 600hp on stock internals.


-Ted

I do not plan to use stock internals. Enjuku claims 545hp@wheels on stock bottom end. That is about 600hp@motor.

Good luck keeping it together.
That 3.5 liter sump just plain sucks, and spun bearings are the norm. :(


-Ted

yea really, lets see how long this one lasts and then youll realize you should have just stayed rotary. what were you thinking?

stop dogging the SR20, all engines have their weaknesses. I think the project is cool, and good luck with it

hey i found this post on the board. i guess somebody has already done this. https://www.rx7club.com/showthread.p...driver+article so i guess you could contact him if you need any info. just trying to help.

Thanks for the link, I had previously looked through his post. I have opted not to use the SR20DET, but to use the Toyota Tacoma truck motor. They have 2 versions of the motor, a 2.4L and 2.7L. I will probably opt for the 2.7L version and they can be had cheap...$700.
http://www.paradiseracing.com/
Their car went 151mph using the 2.4L version. The bottom end received forged rods and pistons, but stock n/a cams and no head porting. Rado uses the 2.7L version and pumps out 1000hp. I want a reliable 600hp@wheels.

BTW, can someone please point me to a front air dam that will allow me to mount my new Garrett intercooler? The core size is 24"x12"x4.5". Again, I have seen some FC's that are able to run the large frontmount, but not with the stock front air dam. Thank you again for your help. I did get one of the 2 GT25R turbochargers for this project.

an sr20det is a great engine but i would think you might be more intrested in a rb20dett or the rb26dett
someone in japan shoehorn'd a rb20dett into a miata i KNOW it will fit in a rx7. Personnally...KEEP IT MAZDA (im a mild hippocrit w. my ford rear but...)


...and as for the 20b-t miata SHHHHHHUT UP!! IM doing this currently and i sunk 12k into the project so far. I have a gt42 53trim going into it and i have a goal of 650rwhp at one bar.
If you want more info email me or PM me but please dont talk others into trying it.

parts-
microtechlt12s
pri 720cc
sec 1600cc
tial 46mm gate and BOV
garrett GT42
custom intake and exhaust mani's
custom mounts ,IC, Rad., plumbing,.....ect
wastegate w. .4bar spring to make it mildly streetable (5.6spsi approx?)

What's the point of owning a rotary engine with 1/4 of the torque of a piston engine?

I have no problem with rotaries other than it was cheaper, easier, faster and 'cooler' to install a V8 in one. I bought my car before I had heard you could swap something in to it. If it was a matter of a simple rebuild, it would stil have the rotary - but replacement rotor housings aren't cheap enough in my neck of the woods.

Stop bashing people for coming up with creative ideas. If you were around in the 40's would you have been one of the people who said "leave that airplane engine alone, jet powered planes won't fly"??

I think anyone who has the guts to try a swap like this should be congratulated for not having killed his own soul by conforming to "don't bother, it can't work"


I believe it was Emerson who wrote "Whoso would be a man, would be a nonconformist"

I believe truer words have never been spoken.

It's not what you can buy....It's what can you build.

Bolt on mods are for the unskilled =)

Any swap or mod is cool if done well.

Be careful of your wording.
20B's are not 1/4th the torque of your V8.


-Ted

You are correct, however, the 20B swap involves much more $$$ and it still will not be any more reliable than a 12A, 13B, etc.
And I do not even want to think about the rebuild costs of a 20B. :)

Now don't get me wrong, I love the rotary and I will have another, however, this will only be when they either get the rebuild costs "down to earth", make them more reliable or when I have money like ol' Jimlab. (no offense Jim) :)

Ok so maybe not 1/4. But I doubt it has MUCH more than 150 lbs/ft. Probably more like 1/3 of the V8 :)

You seem to have missed the point. Exactly where on the option sheet do you check off to buy the "soul" of an RX7? Certainly it's listed there somewhere, since it's so often talked about. I was making fun of a dumbass comment with another one. Read the rest of that post.