LSXREX

Just passing by to see the highest torque motor ever produced go into the best most amazing car in the whole wide world.

Brettus

iTrader: (2)

Bickering between the piston guys .... this is new ! LOL

CRO8TIA

LS, I think you are in the wrong forum, you should visit the Wärtsilä or Yugo forums.

Kicker, get your finger out man

LSXREX

Kicker's just made it an easy target. Plus that any idiot can bolt on an LSX comment wasn't well received. Plus in the time he has spent discussing and going back and forth between bellhousings I could have whittled a motor out.

LSXREX

Doesn't really count as a joke/burn if you are the only one who laughs.

kickerfox

I have the info. Just not the time.



You won't find it here.



The bell housing was one of the first things I bought. Trans was second. Neither have changed.


And by "idiot" I mean anyone who can use a tool and has some auto skills. The LS guys already know what bolts to what. The parts are already built. Need an LS fuel rail? Clutch? Flywheel? Go to ebay. There's dozens of them. I don't have that luxury.


Have you guys ever BUILT anything before? And I don't mean assembled store-bought parts. I mean built. Designed, fabricated, tested. I'm making quite a few parts go together that were never intended to and many other parts from scratch. I can't just run over to Autozone and tell them when I need. I have to buy a lot of stuff to see what's interchangeable or what I can modify to work. It takes a ton of research and time. I do have a business to run and a life outside of the garage. This car is a hobby project, not my sole purpose in life.

LSXREX

There might be a reason for that. No engineer or shop would set aside the time to design anything for that motor. One off, against the grain builds are cool but at the end of the day it's a mazda. And there is no way I will explore the depths of my mechanical competence with a mazda.

SiNfidelity

Is that how ur doin ur conversion so cheap?
Whittled out of timber?

LSXREX

Yeah. Made it out of a solid oak tree and still has more power than a three rotard.

kickerfox

You mean like this prop-reduction for the Supermarine Spitfire aircraft that uses a supercharged 350hp Isuzu v6? No engineers in the aviation fields. Must be some garage mechanic building it.

LSXREX

Man I could rupture this thread with all the uses and power levels of the LS platform. I was just commenting, just like everyone else, that the Isuzu V6 isn't really that smart of an option when you stack it up against the SR motors, JZ, and LS. The aftermarket is already in place for ya. What really got my attention was the comment on how you think the LS motor will just bolt in to place. I'm not gonna take up any more room in this thread bc there is 30+ pages of people poking at ya already. Goodluck with the build. If you finish it by the time I retire I may be interested in checking it out.

kickerfox

An SR20 was considered. I even had one sitting in the garage when I bought the car. LS is too common of a swap. JZ is nice but also a common swap and it hangs a little too far over the front axle. Plus I always wanted to do a v6tt build.


I think everyone is missing the point with this swap. I'm not after huge dyno numbers. I just want a unique, reliable, and relatively quick car just for the fun of it. The challenges also make it fun for me. The shock factor is entertaining as well. I'll get to here "you put a what in there?" on a regular basis. My goal is to have the engine in and running by summer. There are very few hurdles left.

Leon R

LSXREX, welcome to 2012 (the first page of this thread). You aren’t going say anything that hasn’t been said 3-5 times already. I still think that Kickerfox is crazy to do this, but as someone with an Isuzu 3.5 engine, I am thrilled that he is going this!

Last weekend I replaced a failing thermostat on my Vehicross. This was THE WORST thermostat job I have ever done. Fuel injectors and intake manifold have to come off in order to gain access to the thermostat!

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Anyway, I must admit this is a pretty nice, all aluminum, engine. I can see why someone might admire it. But I am not sure I am liking that Variable Intake Manifold system. I wouldn’t mind getting rid of it, in favor of MUCH shorter runners and a big plenum. Kicker, what are you doing for your intake?

kickerfox

Custom intake. Flanges transition from the head ports to round ports. Aluminum elbow runners will be welded to the flange and to a box plenum. Injectors bungs are machined in the flange rather then welded to the runners. Throttle body is RX8. Injectors changed to EV6 connectors and increased to 48lb volume. Custom fuel rails and Aeromotive 1:1 regulator. AN fittings through out the fuel system. Black cloth braided hoses.

Isuzu definitely buried the thermostat on it. It won't be so hard for me to get to with the new intake. Isuzu's variable intake is very effective at producing low end torque with runners that long. My intake design has very short runners which may hurt my low end torque a bit but since this is a turbo build they need to be short.

You know the crossover coolant housing coming off the front of the heads? I'll be using two separate hoses so I can eliminate that housing. This allows me to keep the intake height much lower.

Most of the gunk getting in your plenum is from the PCV and EGR system. More so from the PCV. I'm modifying the valve covers and PCV system plus adding a catch can. I'm not sure what I'll do with the EGR yet. Probably just block it off.

Here's a screen shot of the flange being drawn in CAD. Not finished yet but I have a pretty good start on it.

logalinipoo

He wasn't laughing alone.

CRO8TIA

LS, this is why this project is time consuming, most of the items Kicker is utilizing are custom 1 off parts, not something you can buy off the shelf at Autozone like LS engine parts, or from Hinson or V8 Roadsters, which make the LS a bolt in item. Kudos to you Kicker, excellent work so far.

9krpmrx8

iTrader: (46)

F#@k that thermostat location, I would use an inline one elsewhere or an electric water pump setup.

http://www.jegs.com/i/JEGS+Performan...HcUaAmFh8P8HAQ

LSXREX

I'm aware of the amount of work and I admire the diligence. I just see it as a wasted effort on an Isuzu motor.

kickerfox

Rolling up on 1000 posts and still no technical reasons why not too.

LSXREX

Touché.

BigCajun

iTrader: (1)

This speaks volumes, literally.
A reason in itself.
Carry on.

CRO8TIA

Although it pails in comparison to a particular Boost rebuild thread with 3982 posts.

Joker_andthe_thief

hows it going,,, the only issues i see are

part availability

tranny adaptation is a b*tch

and exhaust headers
and cost

other than that keep on wrenching

hypothetically if the motor can run outside of a car (which is done on the regular) bolting it all together slapping it in the car and wiring it up is possible as long as it all fits

swoope

iTrader: (5)

wow,

swap heckling swap.

beers

kickerfox

1: Part availability is great. The engine has been used in many trucks for quite a few years. Trooper, Rodeo, Amigo, Axiom, and Vehicross. There is zero aftermarket support in the states though.


2: The ease of adapting a wide variety of transmissions was the main reason I chose this engine. Turns out a simple modification to the Isuzu flywheel was all it took to get the clutch sorted out. A Pontiac Solstice trans bolted up to the Isuzu bellhousing. Just had to make a bushing to hold a different pilot bearing.


3: I can't argue with you here. The exhaust manifolds are one of the hardest aspects of the engine swap.

4: I have the Isuzu harness stripped to it's basics such as power, ground, and the various outputs for FP and fan relays. Same has been done for the RX8's harness. I won't make the splice until the engine is back in the car.


And you other guys, I'm not bashing the LS engines but you have an LS kit available for the RX8. Someone else did the hard part for you. I didn't need 400lb of NA torque. I'll be quite happy with 200lbs NA to 400lbs boosted out of the v6 and have something more unique when I'm done.