G Gilla

Well i have owned an rx7 for about 4 years and i am getting to that point were i am tired of putting all this money into it for the smallest problems. I have been looking at some LS1's and how hard it is to do a conversion. Just the other day i found a good condition LS2 motor out of a 06 GTO with about 20,000 miles on it. I just wanted to know how much harder and expensive to do a swap on a 93. What are some of the major problems that come along with this kind of swap. I know the LS1s have been getting easier and easier to do, But what about an LS2?

Thanks
-G Gilla-

lt1_rx7

iTrader: (13)

as far as i know the external dimension of the LS2 are the same as the LS1, so the same kit will work to install it. A few things I could think of that would differ some would be some wiring, sensors, and ECU...but I've not tackled the LS series v8s yet...

G Gilla

I havnt really thought of an LT1. How much do those motors run? And what is the power difference between the three

aaron1017

Major difference is the electrical.

Head to http://www.v8rx7forum.com/ and start reading! You are going to little... if ANY help over on these forums..

I am currently going ls1 @ the moment. Same username over there...

G Gilla

Thanks, the search function didnt really find much, ill take a look

misterpoop

LT1's aren't half as good as an LS1, plus their igntion system (Optispark) is junk. An LS2 would be an identical swap compared to an LS1. I don't know of a single person who would actively try to put an LT1 into something.

Troux

iTrader: (6)

I'm working on an LS2 project, though I don't have the motor test-fitted myself, but from reading, here's what I know:
1. The same subframe can be used, as mounting points are the same.
2. The oil pan must be changed. The GTO oil pan is a front sump, so you have to get a rear sump pan. Cheapest option is the LS1 F-body pan. This is also the only one that will work with Hinson's kit. Best option overall is a Corvette LS2 oil pan. It has improved baffling, and will fit just fine with Dynotested's kit.
3. The LS2 uses a drive-by-wire throttle. You either have to buy a gas pedal assembly from a GTO (can usually be included with the full pullout if you're buying through a junkyard, but you'll have to ask), and then buy the mounting kit to put the pedal into the 7 (from Hinson for about 100, give or take $20), or you have to convert the throttle body to a cable-driven unit. I'll let you do your own research on this choice.
4. The GTO tranny has a different shifter location than the F-body. Supposedly some people think the GTO location is perfect (F-body tranny requires minor cutting), but Hinson told me I'll absolutely need to buy his relocation kit ($60, give or take $20), which moves it to the same place as the F-body shifter).
5. From those I've talked to, I've heard the LS2 harness is actually a good bit EASIER to mod than the LS1 harness, although there are more people familiar with modding the LS1 harness.

These are the only differences I know of that you'll encounter. Good luck. Go LS2!

LT1 RX7

No doubt the ls series engines are superior to the lt1. However the lt1 is much cheaper to do. I paid $2500 for an lt1/t56 combo about a year and a half ago. Just got it running last week. It totally rips. I would let your budget be your guide. Check ebay for the differences in price and go from there.

XxMerlinxX

iTrader: (2)

I've got a friend that had an LT1 in his camaro. Had SO much trouble from the optispark, he ended up selling it.

books

iTrader: (8)

If you go LS2 with the Hinson subframe, you'll need some LS1 F-body engine mounts. Also if you use the GTO T-56 you'll need a F-body tranny mount.

G Gilla

There is this guy near me that wants 2 grand for the motor. So I thought I would go check it out. That sounds like a good price.