My Miata MX-4G Build
#21
I cant wait to see how this turns out for you, but along the lines of "hasn't been done in a miata yet" i will have to try to get pics for you the next time i goto the track. Here in orlando there is a 4g63 (from a starion) miata that is stupid fast. Its a sick swap and i wish you the best.
#25
Thought that would be fun to say!
I am truly an open minded person and always willing to listen to what others have to say. I have an unle that has always told me, God gave you two eyes and two ears and one mouth for a reason. I also know that not everyone is right and that I wont agree with what everyone has to say or suggest. But, the reason I am always willing to listen to others is because I am not always right and dont know everything. I dont pretend to either.
I am truly an open minded person and always willing to listen to what others have to say. I have an unle that has always told me, God gave you two eyes and two ears and one mouth for a reason. I also know that not everyone is right and that I wont agree with what everyone has to say or suggest. But, the reason I am always willing to listen to others is because I am not always right and dont know everything. I dont pretend to either.
#26
For many reasons. I dont want to do something others have already done. I am not looking to follow someone else's step-by-step directions. I am also wanting to keep the car a turbo 4 cylinder and make just a much, actually more, power than the V8 swaps are making. IMO, the best motor to do that with is the 4G6X motor. My thoughts are, the money I would spend on turboo'ing the original Mazda engine or will be much better spent, power wise, on a 4G6X motor. More bang for the buck. There are other reasons, like me history and passion for the 4G motor, that also motivate me to do this swap. They all add up to taking this route. It will be one hell of a car and like no other.
#27
well for one (even though it's overkill) you can make 500whp with a stock block 4g63t. and 2. it's way cheaper than an lsx swap, especially if your doing the fab work yourself like i imagine this guy is planning to. 3. turbo sounds from a hi-powered version at 8-9k rpm equal or better the sound of an lsx. (opinion). and 4. it sounds like he wants to be unique. only problem with that is that it usually negates #2.
good luck! if this goes well, my poor gvr4 may have a longer wait before it's on the road again. i've got a jdm 4g63 sitting in my garage with all the parts for greatness. tial wastegate, greddy intercooler and bov, turbonetics t3/t4, keydiver chipped eprom ecu, z06 maf and translator, ported head, crower ti. retainers/springs, web 276 cams, etc....
good luck! if this goes well, my poor gvr4 may have a longer wait before it's on the road again. i've got a jdm 4g63 sitting in my garage with all the parts for greatness. tial wastegate, greddy intercooler and bov, turbonetics t3/t4, keydiver chipped eprom ecu, z06 maf and translator, ported head, crower ti. retainers/springs, web 276 cams, etc....
As for you, dont take your focus off of that GVR-4. Those are becoming quite rare and I would like to know that another one is back up and running. My old one is up for sale and I have been tempted to go buy it back but, I have enough projects at the moment. When I got warehouse/shop space a few years back all it did is allow me to get into too many things at once. I am focused on two right now. I am putting together a "street" tuned DSM, 1993 Eagle Talon TSi AWD, which will have about 500-550 hp. I will be building this Miata at the same time. I have just about everything I need for my Talon exept tires, ECU, injectors, exhaust, FMIC and pipes, and wastegate. The Miata has plenty left to go, obviously, but is where most of my money and time will go this year(s).
#28
Fair enough, but if you think a high powered 4 trumps the sound of an lsx.. you're hearing the wrong ones.. The wrong tone..
Question is how long is this 500hp budget built 4g63 going to last? If you're worried about cost and can fab stuff yourself, but not worried about weight simply use an LQ series motor with an iron block. LQ9's can be had from salvage yards for under a grand, seen them for 3 - 500$ on craigslist before. For reference, the LQ9 is the 6 liter from the Caddy, 385# torque.
Defiantly subscribing to this thread and look forward to updates. Similar to the 2jz I wouldn't use the motor myself but give props for being different.
Question is how long is this 500hp budget built 4g63 going to last? If you're worried about cost and can fab stuff yourself, but not worried about weight simply use an LQ series motor with an iron block. LQ9's can be had from salvage yards for under a grand, seen them for 3 - 500$ on craigslist before. For reference, the LQ9 is the 6 liter from the Caddy, 385# torque.
Defiantly subscribing to this thread and look forward to updates. Similar to the 2jz I wouldn't use the motor myself but give props for being different.
The Miata is a desire to build a RWD, 4G powered street car that will handle well. Being a roadster is a big plus as well. A huge plus fo rme is that it is a combination that nobody has done before. That is a huge driving factor for me. To me, a V8 swap is just too easy and too many people have, and will continue to, do that swap. I love the sounds of a well built and tuned LS or LQ but, I also love the sound of a well built and well tuned 4G.
As for budget, I am always looking the cheapest way to do things right but never looking to do things cheaply. Does that make since? I am not looking to waste money but I am not looking to cut corners if it means the car will be crap. I will do it right.
#29
I cant wait to see how this turns out for you, but along the lines of "hasn't been done in a miata yet" i will have to try to get pics for you the next time i goto the track. Here in orlando there is a 4g63 (from a starion) miata that is stupid fast. Its a sick swap and i wish you the best.
#30
Want fries with that?
iTrader: (3)
Join Date: Oct 2009
Location: Twin Cities, Minnesota
Posts: 2,011
Total Cats: 2
**** you man, I've always wanted to do a 4g63 swap, that's my favorite engine. I've even talked about a 4g63 swap to Miata but I do not possess the time, money, or skill.
Good luck with this man! I wish I could do it!
Good luck with this man! I wish I could do it!
#32
elesjuan, thank you for saving us the paragraph's. im sure that iron block v8 would have made a great track miata. as far as 500hp stock block 4g63's last, i don't know, years? surely as long as any of the ls1 racers i know (nasa time trial and st class racers) mine is only 430whp but it has 140k and has run great for 5 years of street, highway, and track duty. now my tranny, well, it's changed out annually, but the op won't have to worry about that.
#34
Elite Member
iTrader: (1)
Join Date: May 2009
Location: Jacksonville, FL
Posts: 5,155
Total Cats: 406
Yah seriously
the LS is great and everything but its not neccesarily the ultime for everything
Im pretty sure you have more power potential with a turbo 4G63 than a NA LSx...
edit:
yeeeeeah...
hahahahahaha
the LS is great and everything but its not neccesarily the ultime for everything
Im pretty sure you have more power potential with a turbo 4G63 than a NA LSx...
edit:
yeeeeeah...
hahahahahaha
#35
Not the same car, although a turbo charged Mitsubishi vehicle. I too had a Stealth R/T TT and sold it to get married and spend two weeks in Hawaii. I was going to do a 3.0-3.5 swap and run twin T3/T4's. I had so many parts sitting around ready to go and decided to get married instead. What was I thinking?! LIve my wife and will never be able to replace Hawaii trip but I do miss taking onthat project. To this day no 3KGT/Stealth guy has completed a 3.5 lt swap. Its not really that hard of a swap since almost all the 3.5 DOHC parts can be had by Hyundai in some Sonotas. I still have the required part numbers saved somewhere. Mitsubishi only offered SOHC versions of the motor.
#37
Not the same car, although a turbo charged Mitsubishi vehicle. I too had a Stealth R/T TT and sold it to get married and spend two weeks in Hawaii. I was going to do a 3.0-3.5 swap and run twin T3/T4's. I had so many parts sitting around ready to go and decided to get married instead. What was I thinking?! LIve my wife and will never be able to replace Hawaii trip but I do miss taking onthat project. To this day no 3KGT/Stealth guy has completed a 3.5 lt swap. Its not really that hard of a swap since almost all the 3.5 DOHC parts can be had by Hyundai in some Sonotas. I still have the required part numbers saved somewhere. Mitsubishi only offered SOHC versions of the motor.
I look forward to more pics though.
#38
Another reason this is so cool is the nature of the power band on a 4G63 with a moderate turbo. My 93 AWD Laser just used an E316G and made somewhere in the high 200s WHP. The power came on strong at about 3K more or less. With an LSX you can easaly get more torque than the chassis can really use at low speeds and slow corners. With a 4G63 you can run something like a 50 trim or GT3071 based turbo and get a bit more progressive TQ delivery at low revs.
Not saying the 4G63 is the superior engine (thats a big can of worms) but I am definitely saying it has some points in its favor for a Miata thats not going to wear 275 width r comps at all times. The LSX might truly 'have more potential' and 'not need a turbo to make power' and 'have replacement parts at every street corner for a dollar' and all those other tired *** cliche points, but a 4G63ed NA is going to be pretty scary fast for cheap if done right.
Not saying the 4G63 is the superior engine (thats a big can of worms) but I am definitely saying it has some points in its favor for a Miata thats not going to wear 275 width r comps at all times. The LSX might truly 'have more potential' and 'not need a turbo to make power' and 'have replacement parts at every street corner for a dollar' and all those other tired *** cliche points, but a 4G63ed NA is going to be pretty scary fast for cheap if done right.
#40
Elite Member
iTrader: (11)
Join Date: Jun 2007
Location: Overland Park, Kansas
Posts: 5,360
Total Cats: 43
Another reason this is so cool is the nature of the power band on a 4G63 with a moderate turbo. My 93 AWD Laser just used an E316G and made somewhere in the high 200s WHP. The power came on strong at about 3K more or less. With an LSX you can easaly get more torque than the chassis can really use at low speeds and slow corners. With a 4G63 you can run something like a 50 trim or GT3071 based turbo and get a bit more progressive TQ delivery at low revs.
Not saying the 4G63 is the superior engine (thats a big can of worms) but I am definitely saying it has some points in its favor for a Miata thats not going to wear 275 width r comps at all times. The LSX might truly 'have more potential' and 'not need a turbo to make power' and 'have replacement parts at every street corner for a dollar' and all those other tired *** cliche points, but a 4G63ed NA is going to be pretty scary fast for cheap if done right.
Not saying the 4G63 is the superior engine (thats a big can of worms) but I am definitely saying it has some points in its favor for a Miata thats not going to wear 275 width r comps at all times. The LSX might truly 'have more potential' and 'not need a turbo to make power' and 'have replacement parts at every street corner for a dollar' and all those other tired *** cliche points, but a 4G63ed NA is going to be pretty scary fast for cheap if done right.
That dyno chart someone else posted though, unless you're building a dedicated drag car... would be a pretty useless motor.