V8 Engine swap

Discussions relating to Turbochargers, Superchargers, Induction, Engine Mods, Exhaust Mods, and other items specifically to make your MX5 or Roadster put out more power.

Moderators: Growler, jif, SLYDIT, Born_disturbed

LS3V8MX5
Hey. They are NOT Training wheels.
Hey.  They are NOT Training wheels.
Posts: 9
Joined: Sat May 15, 2010 9:44 am
Location: Hamilton

Post by LS3V8MX5 » Fri Nov 12, 2010 11:00 am

Everything was modified/fabricated by me except for some machining, fabrication of the firewall and engine bay painting :)

The tyres are standard size- I insist on this for 2 reasons:
1- The car looks totally standard, even MX5 car club members and Mazda dealers cannot pick it as having been modified (except for the massive front brakes :( ) until the engine is started; this is very important to me- the ultimate "Q" car concept :lol:

2- The limited traction of the rear tyres is what saves the diff and half shafts from destroying themselves.

I've tried many different tyres on the car and thouroughly recommend continental conti-sport contact 3's.
They will often take full throttle in second and almost always in third without breaking traction. Of course you need to roll the throttle on rather than snap it open, and the tyres need to be warmed up first...
Second runs to 102km/h, so 0-100 km/h time seems to be about 3.5 secs without a need to change gear.

Achillies 123s were remarkable, they easily cope with the torque and are very cheap- unfortunately being lower profile they reduced my ground clearance too much.

Having a lightweight car with all that torque at really low rpm (400Nm at 1000 rpm :roll: ) means that the car is incredibly easy to drive, even in town, any gear will do- Really!

The electronic throttle of the LS3 really shines here- it's so progressive and smoothly linear that the car is easy to drive without wheelspin or jerking. it really controls the torque output very smoothly. As you say, tubo cars can be a real PITA in town...


The engine was brand new crate motor from Ebbetts here in Hamilton.
I imported a new gearbox from Holden Australia, the Cobra and Mustang parts to modify it came from the States.
The Engine Management system and Brakes are from the States, but both required a fair bit of modification to fit MX5.

I've put the car in "the garage" part of this site, but don't know if you can see it yet...
440HP 6.2L V8 2005 NC

Donovan
I only think 5.
I only think 5.
Posts: 917
Joined: Tue Aug 10, 2010 10:05 pm
Location: Auckland

Post by Donovan » Fri Nov 12, 2010 11:22 am

Yep, has had a look at the car in the garage section, but didn't have the mods listed there, hence the million and one questions.

From what I have read there are about 20 different models of the T56 Gearbox (Cobra, Viper, Commodore, Caddi, Mustang, Aston Martin, Camaro) so I need to find out what model they were using in the Boss Frog kit.

From what I could see the Holden one was the heaviest and handled the least amount of power, so was going to try and stay away from that one. The Viper was the lightest, and took the most power, but the clutch assembly is all wrong, and just won't work.

LS3V8MX5
Hey. They are NOT Training wheels.
Hey.  They are NOT Training wheels.
Posts: 9
Joined: Sat May 15, 2010 9:44 am
Location: Hamilton

Post by LS3V8MX5 » Fri Nov 12, 2010 12:00 pm

I think it's a good idea to buy an affordable gearbox that fits with the minimum modification, T56 are rated for fitment to mass produced cars based on GVM (weight of vehicle), as such they have to be rated for strength and longevity.
I'm sure the holden box is strong enough for a 1000-1200 kg car, a heaver vehicle loads up the transmission more due to traction and the need to use lower gears more...

The TUET6000 (Holden) is rated for 1550kg car.

I haven't listed the mods yet :( but have posted a few pics :)
440HP 6.2L V8 2005 NC

Donovan
I only think 5.
I only think 5.
Posts: 917
Joined: Tue Aug 10, 2010 10:05 pm
Location: Auckland

Post by Donovan » Fri Nov 12, 2010 12:04 pm

Oh, I thought the commodores were using 1386-000-022 model. Must be the older ones, the SS with the LS1 in it.

LS3V8MX5
Hey. They are NOT Training wheels.
Hey.  They are NOT Training wheels.
Posts: 9
Joined: Sat May 15, 2010 9:44 am
Location: Hamilton

V8 Engine swap

Post by LS3V8MX5 » Fri Nov 12, 2010 12:17 pm

Not sure,

mine is TUET6000

I emailed Tremec about it and they sent me this:

TUET6000 is for a 2006 GM Holden, T56, 475 Newton/meter for a 3,400 lb. GVW.
92172964 GM part number
K2161 build date Oct. 21 2006 First shift

Peter,
Thank you for your interest in the TREMEC brand product. The
gear ratios for the model number TUET6000 is as follows:
First 2.66
Second 1.78
Third 1.30
Fourth 1.00
Fifth 0.74
Sixth 0.50
Reverse 2.90




Peter Franks
(+64) 0211166304










-----Original Message-----
From: Donovan [mailto:horsepower@mx5forum.co.nz]
Sent: Friday, 12 November 2010 12:05 p.m.
To: horsepower@mx5forum.co.nz
Subject: [MX5Power] Re: V8 Engine swap

Oh, I thought the commodores were using 1386-000-022 model. Must be the
older ones, the SS with the LS1 in it.

[Posted via external email]
Attachments
T56-2Web.jpg
440HP 6.2L V8 2005 NC

Anthug
Need, more, 5-ing, time....
Need, more, 5-ing, time....
Posts: 113
Joined: Fri May 19, 2006 10:05 am
Location: Manukau, NZ

Post by Anthug » Fri Nov 12, 2010 12:47 pm

Hi Peter,

Congratulations on the build and for being the first. Go the Kiwis!

Really admire your the 'ethic' behind the build.

For anyone wanting to read more on this build:

http://forum.miata.net/vb/showthread.php?t=375100

Anthony

Donovan
I only think 5.
I only think 5.
Posts: 917
Joined: Tue Aug 10, 2010 10:05 pm
Location: Auckland

Post by Donovan » Fri Nov 12, 2010 2:58 pm

I was going to be rude and ask how much you paid for the LS3 crate motor, but after reading the Miata forum thread, I am guessing you work for Ebbetts and would have paid close to cost for it, same with the gearbox.

The LS1 motors in NZ seem pretty expensive for what they are and the age of them.

LS3V8MX5
Hey. They are NOT Training wheels.
Hey.  They are NOT Training wheels.
Posts: 9
Joined: Sat May 15, 2010 9:44 am
Location: Hamilton

V8 Engine swap

Post by LS3V8MX5 » Fri Nov 12, 2010 4:10 pm

I think I got a pretty good deal :)

Everything on my car is new, it has not been inexpensive, but on the other
hand I've done over 10,000km without anything breaking, falling off or
needing topping up- except for the FUEL TANK!



Engine $7.5k
ECU/ Alloy Flywheel/ etc. $5.6k
Gearbox $7.7k
Brakes $3.8k
Headers/Exhaust $1.2k

etc etc etc...




-----Original Message-----
From: Donovan [mailto:horsepower@mx5forum.co.nz]
Sent: Friday, 12 November 2010 2:59 p.m.
To: horsepower@mx5forum.co.nz
Subject: [MX5Power] Re: V8 Engine swap

I was going to be rude and ask how much you paid for the LS3 crate motor,
but after reading the Miata forum thread, I am guessing you work for Ebbetts
and would have paid close to cost for it, same with the gearbox.

The LS1 motors in NZ seem pretty expensive for what they are and the age of
them.



---------------------------------------------

Sent from an mx5forum.co.nz topic here:
http://www.mx5forum.co.nz/viewtopic.php?p=45287#45287

---------------------------------------------

[Posted via external email]
440HP 6.2L V8 2005 NC

Donovan
I only think 5.
I only think 5.
Posts: 917
Joined: Tue Aug 10, 2010 10:05 pm
Location: Auckland

Post by Donovan » Fri Nov 12, 2010 4:33 pm

Yeah, pretty good price on the engine, I have been given prices of $5-$6K for a second hand LS1 engines late 90's or $7K for a 2005 LS1, non recond and anything with mileage from 50K-120K on them.

Thinking seriously about sourcing the engine, gearbox, diff direct from the US myself, and bring it all in at the same time with the kit and just share a container that has a bit of spare room.

Need to try and save $$$, my pockets aren't as deep :cry:

Gravelben
I have stars and not afraid to use them
I have stars and not afraid to use them
Posts: 257
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Location: Southland

Post by Gravelben » Fri Nov 12, 2010 6:57 pm

LS3V8MX5 wrote:...
1- The car looks totally standard, even MX5 car club members and Mazda dealers cannot pick it as having been modified (except for the massive front brakes :( ) until the engine is started; this is very important to me- the ultimate "Q" car concept :lol: ...
Number plate is a bit of a giveaway ;)


Top conversion though, good effort!

Donovan
I only think 5.
I only think 5.
Posts: 917
Joined: Tue Aug 10, 2010 10:05 pm
Location: Auckland

Post by Donovan » Wed Jan 12, 2011 7:48 pm

Just been talking to Flying Miata this morning, apparently they have just purchased a NB with the intention of putting a LS motor into it, I assume for sorting out a kit for it.

Euen
I am quitting my job and going 5-ing
I am quitting my job and going 5-ing
Posts: 619
Joined: Tue May 23, 2006 9:42 am
Location: North Shore

Post by Euen » Wed Jan 12, 2011 10:13 pm

NB or NC??
TG Sports, classic roadster - modern technology. NA1800, 99 head, 11:1 +2mm Wiseco pistons, Link LEM, Alloy f/wheel, JR headers.

Donovan
I only think 5.
I only think 5.
Posts: 917
Joined: Tue Aug 10, 2010 10:05 pm
Location: Auckland

Post by Donovan » Wed Jan 12, 2011 11:16 pm

Was trying to do to many things at the same time, was supposed to have typed NC. They have a picky of it on their website as it is at the moment (they have only just got it). As the comment say's, might need a bit more of a buff out.

http://www.flyinmiata.com/projects/curr ... p?UID=1053

jayden
Hey. They are NOT Training wheels.
Hey.  They are NOT Training wheels.
Posts: 1
Joined: Thu Aug 23, 2018 4:16 pm

Re: V8 Engine swap

Post by jayden » Thu Aug 23, 2018 4:18 pm


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