LS1 FC Has any one done this personally or know some one personally?
 

Thinking about LS1 conversion in FC and want to hear how it is from people who has done it.

search function, and they have a section for other engine swaps under the rotary performance catagory.

i knew someone that has done it....

he SCREWED me out of $150....

bastard.

Torquecentral.com or .net or something like that... Whatever that site is for quitters.

I know someone who has done it. Got a ride in it and decided to convert my fd, 'nuff said.

Yeah check out torquecentral. FDreaming, care to line up with one of us "quitters" :D ?

ask away.
ls1t56 fc in progress.
its simple really... but the prep work is time consuming.

Interesting opinion ya got there. Keep on enjoying your 13 second, gas guzzling, temperamental rotary and we'll take care of the fun stuff, ok?

What are you preping?

dropping in the LS1T56 only took a few hours.

BUT, the fuel system upgrades, cooling system upgrades, drivetrain upgrades, suspension upgrdes, wiring changes, even the intake planning and finding the right parts for cheap are all adding up to being very time consuming stuff. I even missed a lot of basic things that made my swap install take a lot longer then needed.... header lower flange bolts were broken off and had to be cut shorter and drilled out, I was missing a bunch of bolts for the bellhousing, I had no rubber mounts on the tranny or engine (tough to get the engine ones), my super duper racing radiator's outlets are each 1/4" larger diameter then the LS1 coolant necks, the diff has to be bolted to the rear subframe before attaching either to the chassis because I reinforced the sub-to-diff mount plate, the cherry picker load leveler (tilter) that I bought was a piece of junk, etc. etc.

There is no wonderful write up of a LS1T56FC how-to... yet.
so it took some time figuring everything out because I want to do it myself for as little money as possible while buying quality parts.

I've ridden in an LS1/t56-FC.

I can describe it one word....

DAMN!

Basically stock LS1, not even really tuned completely, and it would kick it sideways at the drop of a hat, anywhere from 0-60 mph range. Feared for my life a little, but damn, hell of a car. :bigthumb:

We should do to him like we are doing to GG.

where do you guys find these incredible avatars?!?!?!?

either they download and make them or take a picture and make them.....

Wow, hold on, your jumping to conclusions, I drive an N/A rex so I run high 14s, but I do get 26mpg so... I am right in line with an LS1. As for lining up with a V8 powered rex sure, on a road course, first one to understeer loses! :P

Don't worry I realize that if you just want captain insano power levels the swap is the cheapest and fastest way to get there, but this site does focus on ROTARY performance so take your enthusiasm over there.

I assume you have the requisite suspension mods to back up that statement? There are plenty of guys with swapped cars that have the proper suspension setups to make up for the massive 50 lbs of weight they've added up front. :bigthumb:

1) sure your right in line with an ls1 in mpg only it will run mid 12's.

2) seeing the car will handle no different you might have to worry more about oversteer due to something called power. Have you heard of that word?

3) I like how you like the rotary is god. My jetta 2.0L 8v beat my RX7 automatic 0-60. Sure "it an auto" well you shouldnt need to rev to 5 bagillion rpm to get 100 hp. f*** that.

4) the cost of and ls1 isnt too far from a rebuilt motor and rotary upgrades only it would have better results.

5) Fuck off and die. :bigthumb:

:rolleyes: My truck can run 14's if I want it to. There's a big difference between high 14's and low 12's. Your car has NOTHING in common with the LS1 except the chassis. My FD/LS1 swap is in the works right now, and I intentionally set my FC up to go in a traight line. But I'm sure there are a few FC or FD LS1 owners who will compare lap times with you.

There is nothing insane about a streetable 400rwhp LS1. I want my powerband where I can use it, which is daily-driven, on the street. Something very few 400hp rotaries are able to accomplish.

I also realize the SITE leans towards rotaries, but THIS SECTION of the forum deals SPECIFICALLY with OTHER ENGINE CONVERSIONS. So you can take your enthusiasm wherever you want but trying to call someone a quitter because we want our cars to perform better and more reliably is a pretty stupid argument. My car will still be running on it's original piston motor while you're on your 2nd or 3rd rotary. So it's your engine that will quit, not me.

I just had to come out of retirement for some of this!

Was that supposed to impress us? My minivan would eat your car alive fucktard! :bgfuk:

You`ve wandered into the Dark Side of the RX7Club and the force doesn`t appear to be with you. I suggest you go back to your side and gather up all your little buddies with little motors to come back to completely hijack this thread. :asshole:

Toughguy :)

How does high 14's and 26mpg compare to an LS1? In a fbody they run high 12's stock, in a FD they run high 11's stock. As stated MANY times before the LS1 setup is only about 25 lbs heavier, wow that causes tons of understeer :rolleyes: Go to a mini battery and you just about break even.

How is the LS1 a cheap swap? The average cost has been $8-9k to do it yourself and it takes alot of knowledge!

I do NOT have a LS1 RX-7 but as a respectable person I respect anything that is fast and makes sense.

Now you do understand you're on a RX7 forum and not a Rotary ONLY forum right? Also you do see you're under the "Other engine conversions" subforum so if you don't support swaps then get the f*ck out!

- nicely put GSRsol!

some proof! \/ \/ \/ \/ \/

I just got the car on the road and I was able to weigh the car before and after the swap.


1993 touring modle 5-speed

Before

LF 729 RF 695
LR 705 RR 692

Total--2821lbs

After swap 1999 ls1/t56 trans ac and power steering

LF 748 RF 717
LR 683 RR 700

Total weight 2848lbs


Weight gain only 27lbs

this guy i guess still had the battery in the engine bay. I plan to not use AC, power steering, ABS, windshield wipers, wiper's resevior, wiper motor, light ass exhaust, mini battery, no rear windshield wiper, fuel cell, no airbags (momo wheel), and probably some other weight reduction. Trying for 2700lbs without driver. thats just me tho. :-)
All he needed to do to weigh less than a stock FD is dump PS or AC....
Relocate battery to the rear and 50/50 is DAMN great for what it is...

/\/\/\/\
just one more to prove the LS1FC or LS1FD is not a fat pig of a swap!
but some rotary guys just wont believe it, its so sad they are brainwashed by mazda advertising!

they need to follow step five of what i posted above.

My "pig" on a scale after the LS1 swap. :D

http://www.torquecentral.com/attachm...achmentid=6764

Damn, I thought you guys might have recognized the sarcasm in my post after I started with "my car is a 14second N/A rex that barely manages the same MPG as an LS1". When I first posted in this thread it was posted up in the 2nd gen forum, it got moved here to engine conversions, so it was still in the "rotary" side of the equation, I didn't realize it got moved over here(I usually just search for threads I've already posted in when I don't have alot of time to waste on here). I bought this car for a challenge, I wanted to play with a rotary motor for a while(I.E. there is an M90 supercharger sitting on my workbench), if I wanted and LS1 I would just buy a damn WS6. Hell, I had a 94 Z28 for a while there.

And the LS1 FDs would still be handing you your ass!

Toughguy :)

Regardless of where it was posted, what purpose did your involvement serve and why didn't you just pass it by when you realized that the subject matter wasn't to your liking?

^what he said!

Ick, LT1. ;)

J/K

Stay away from that M90 though, it's really not the solution I think you're looking for to put on that engine. Roots S/C = major knock inducer. Add that to rotary and you get broken. CSC or a whipple would be a lot better suited. If you do stick with a roots, aftercool it. I'm not pulling this outta my ass, my daily driver is a mid 12 second roots supercharged V6. Knock is a serious SOB-

the thing is, most people that own RX7's love the rotary. you have to otherwise you will either sell the car or swap the engine for something with pistons. so what we have here is a bunch of people that hate the rotary and a bunch of people that love it. im not a huge fan of the LS1 but only because i despise F-body's(someone said they run 12's well yes they do 12.9's, on slicks fool) its cool though. i wish everyone would bitch less and drink more.

so lets just agree to disagree

Yeah, ICK. :D

http://home.gci.net/~jimlab/images/E...d/PA030002.JPG

Is this another one of those "I haven't seen it, so it doesn't happen" things? Yes, some of them do run high 12s stock, without slicks. Some of them also dyno over 300+ RWHP bone stock.

FYI: 12.9 = "12's" and it doesn't matter what kind of tire the car has on it - the point was the MOTOR would do it. Show me a stock rotary-powered RX7 that run's 12's with slicks and I have a bridge or two to sell you.

Nice pic Jim. Resize is your friend, by the way :D

That was resized. :)

Well I did say high 12's STOCK, and I meant it. I have different friends that have ran 12.8, and 12.9 on stock rubber without any mods. Most fbodys dyno around 305-315 stock like Jim said, fool :)

Now I could have said that people have ran 11's in a stock Z06, because I read it on the internets! But I'm not going to since I don't know them and can't confirm they're stock, and yes they were on slicks.

Good lord. You could just have that printed on your garage door at full size and you wouldn't even have to open it.

You should see the original. :p:

ah. now just put that motor in the car..;)

Can't. It still needs a new heart.

Yeah, Jim, your engine WAS an LT1.... if GM built them like that one, it'd be a whole different story- ;) :bigthumb:

Oh, and MY 12 second car, is a MID 12 second car; Read 12.58. :cool:

edit: Oh, and Joey, that's hilarious, I was just trying to sell a rotary owner a bridge in another post the other day. :D

JimBlab,

You're engine is *still* on the floor?

-Donut

Jim.. that LT1 looks amazing. What else needs to be done to get your car on the road?

Matthew Walsh

A little of everything. :)

You really must have lost intrest in the project then Jim.. It seems like you could of accidentally had the car together by now:) I hope that you dont eventually give up completely.

Matthew Walsh

Matthew_Walsh-CW@Discovery.com

Wow, someone finally noticed. :p:

I do a little work on it now and then when I feel like it and have the time, but I rarely have the time and even more rarely feel like working on it. I could throw it together, I suppose, but I've put too much work into it to start cutting corners now.

I've got a pile of parts sitting in the garage that I need to get powder coated, and then I can finish up the rear suspension and differential assembly (all parts on hand) and put the engine and transmission in the car (after getting the new cam in the block). It's not that far away from being done, but it could easily be another year or so before it's finished at this rate. :)

You can donate it to me... I'll finish it up. :bigthumb:

Good luck on it, I can see how the amount of work you've put into it already would start to burn you out-

This is my first post on this board, and this is the first thread ive read on this board. Whats with all the drama? Let sleeping dogs lie, and let people do what they please with their own cars! Also, ive only come across one post in this thread where the person actually knew what they are talking about when it comes to ls1 fbodies. I have customers of mine that run stock 01+ ls1's in z28 camaros who are getting 12.1-12.2 with a lid and a muffler shop exhaust; stock rubber. do research before you spout off about what you dont have a clue about.

There's some weight reduction and slicks if they're picking up 7-8 .10s over stock with a lid (25 hp, max) and header-back (25-30 hp)... 60 hp /= .75 seconds. Now slicks + 150 lbs of weight removed + 60 hp might just do it. Ask how I know- :D

I notice you have a Comp cam. I work at Comp, in the tech department, and i deal with these F-bodies day-in and day-out. I have a friend who is running an 01 LS1 in a Z, custom lid, muffler shop exhaust, 4.10 gears and 17x11s with STREET tires on the back (not even drag radials) and his last run was a 12.254.

Thats just one example... i have plenty others if you need them.

Dude, fbodies don't fuck around.

Jim, man, I've been off and one watching your project for how long now? Ever since I've been into cars? Maybe it's time you passed the torch? To me :D?

dynamic, how did your friend install the ls1? Is it custom or did he use a kit? I think JTR is either working on or has released an ls1 kit. I have to decide soon whether or not I want Z or FC. Can't afford FD just yet, but it will be a monster when I can, I assure you :D. Can anyone here help me with my quandry? I like the way both cars look, but slightly prefer the Z cause it's super-classy looking. The FC is more my price range now, and I still like it's looks just not as much as a 240Z. I'm actually thinking about doing an lt1 into an FC for now then eventually going with the FD/ls1 or 6 or whatever is hot when I can finally afford the swap. Which chassis will stand up to big torque numbers better?

It's the 4.10 gears that are getting those speeds. Drop that back to a stock ratio, I'll be you're right back up in the high 12s.

That said, I'm firmly on the side of Jim and crew. :)