4G15T along with transmission from Colt Version R into CE Mirage?

[samurai blues]

I am just curious; anyone thought of this, or anyone knows someone that have thought abt, or even done it?

Prolly good for 200bhp and then some, with equal length driveshafts and an option for Wavetrace LSD if you use that manual gearbox....

Whats not to like?

Or actually if that bellhousing will suit a 4G9X..... but i think unlikely.

 

[Spetz]

Supposedly they are a substantially different engine and don't directly bolt it.

I don't know what the differences are

 

[samurai blues]

Supposedly they are a substantially different engine and don't directly bolt it.

I don't know what the differences are

yes very different. I tried to tally the part numbers but mountings, cyc head, block part numbers are all exclusive to Z27. Sharings nothing in common with the 4G15 of old.

NOTHING.

what a shame.

but still wondering if anyone has tried.

 

[unclepaulie]

theres one in NSW i believe. Unsure whether its an Rcolt box or a CE gearbox. im a good 80% sure its a Rcolt motor fixed to a CE gearbox though. ill see what i can dig up.

 

[samurai blues]

theres one in NSW i believe. Unsure whether its an Rcolt box or a CE gearbox. im a good 80% sure its a Rcolt motor fixed to a CE gearbox though. ill see what i can dig up.

Please do! looking forward to this.

 

[unclepaulie]

Please do! looking forward to this.

ok so it’s a RColt motor attached to a mirage gearbox. and bolts in with mirage mounts.



Good and bad news I guess. easier bolt in but you lose the good stuff about the Rcolt box. would be interesting to compare the RColt box again the mirage and width of shafts etc. i know gearbox ends of the shafts arent interchangable as i had a pair myself a few years ago when i was in the middle of the 6G swap.


re: getting it running, the owner is going straight to a stand-alone ECU and using a cable throttle. Im sure a mitsubishi ecu wizard would probably be able to get it running on a Evo9 ecu with the right mix of loom and sensors.

the stock clutch slave would need to be converted to concentric or use a Highmount turbo. Andrew’s swap has gone for a highmount as this is how he acquired it. Given the availablity of Rcolt manifolds, i'd probably look into the concentric slave idea first. cheaper option too.

 

[samurai blues]

Wow thats a pleasant surprise.

So the engine just bolts in with the stock mounts? And the Mirage gearbox just bolts in?

Why not the Rcolt's gearbox though? Because the mounts don't line up?

 

[SDate42]

theres one in NSW i believe. Unsure whether its an Rcolt box or a CE gearbox. im a good 80% sure its a Rcolt motor fixed to a CE gearbox though. ill see what i can dig up.

With the pictures now confirming this, think it’s fair to assume that the bellhousing would be the same for reverse swap? (Ie 4g15 bolted to Rcolt box) would require potentially all 3 mounts custom made.

I am just curious; anyone thought of this, or anyone knows someone that have thought abt, or even done it?

Prolly good for 200bhp and then some, with equal length driveshafts and an option for Wavetrace LSD if you use that manual gearbox....

Whats not to like?

Or actually if that bellhousing will suit a 4G9X..... but i think unlikely.

By equal length driveshafts do you mean the Rcolt has a half shaft and bearing? Also where does the starter and clutch sit on an Rcolt box?

im sure I could google most of this, but it’s good to chat/share sometimes.

 

[unclepaulie]

With the pictures now confirming this, think it’s fair to assume that the bellhousing would be the same for reverse swap? (Ie 4g15 bolted to Rcolt box) would require potentially all 3 mounts custom made.

By equal length driveshafts do you mean the Rcolt has a half shaft and bearing? Also where does the starter and clutch sit on an Rcolt box?

im sure I could google most of this, but it’s good to chat/share sometimes.

right you are. 3 new mounts. but also would need to make sure the shifter is ok...worst case: use Rcolt shifter cables and housings. probably need some type of adaptor plate to make the Rcolt housing bolt into the CE shell.

and yes the Rcolt has a half shaft/lay shaft that bolts to the block. bit like 4g69 powered cars and magnas etc. Starter is up high on the back of the block...same as CE spec 4g15 i believe.

below are some pics of the Rcolt Box. from a quick check...they only use 3 mounts in total. However the tricky bit is the shafts and whether they fit a CE would dictate the method to making it all fit.

IF the Rcolt shafts magically fit in CE hubs (in spline count and width); you'd need to use the diff position side to side to set the engine/box and hope the OEM CE driverside mount is ok. It may be but you wouldnt want to offset the engine/box too far left or right cause you'd be stuffing up the shaft lengths.

IF THEY DONT. and custom shafts are required, then i'd just hang it all off the CE driverside mount and make new mounts for the Rcolt box and then shafts to suit.

 

[samurai blues]

i ran some cross referencing through ASA.

the gearshift assembly and shifter cables are all exclusive to that generation of colt.

so are the driveshafts (but thats obvious)

I was hoping if the p/n for the boot kits, joint kits or even driveshaft bearing kits are shared with some other cars, that could give us a good idea if the shafts would fit. but of coz still need a physical comparison to double and triple confirm.

but no.... everything is exclusive to that generation of Colt. EVERYTHING.

CE Mirages & Lancers at least still share some parts with their later CH Lancer and Evo cousins...

@unclepaulie i just read yr 6G75 thread. u mad scientist u.

seems like U r just the right person to tackle the drive shaft question lol

 

[unclepaulie]

i ran some cross referencing through ASA.

the gearshift assembly and shifter cables are all exclusive to that generation of colt.

so are the driveshafts (but thats obvious)

I was hoping if the p/n for the boot kits, joint kits or even driveshaft bearing kits are shared with some other cars, that could give us a good idea if the shafts would fit. but of coz still need a physical comparison to double and triple confirm.

but no.... everything is exclusive to that generation of Colt. EVERYTHING.

CE Mirages & Lancers at least still share some parts with their later CH Lancer and Evo cousins...

@unclepaulie i just read yr 6G75 thread. u mad scientist u.

seems like U r just the right person to tackle the drive shaft question lol

oh thanks mate. definitely took a lot of researching but learnt a lot too. few more conversions popping up now too so that great news.


the more i think about this conversion, the more doable it seems but sadly not bolt on.

someone will have to be the guinea pig for it all. I think custom shafts to suit CE outers would be the way to go. hang it all off the CE driverside mount. and use the Rcolt gearbox mount. Unpick the CE gearbox chassis bracket and get a new one of them made and welded on (like how the civic guys do K swaps). Then while the welder is out, make up the front an rear roll stopper brackets.

*Rcolt shifter cables
*Rcolt shifter housing on some plate to adapt it to the CE chassis
*fuel system: assuming the Rcolt is dead head system: find a aftermarket ally fuel rail. maybe a 4g15 one would suit? have to confirm all that.
*ecu to suit. w/ Throttle of choice (which is usually ecu dependant).
*probably need custom PS lines
*same for AC if thats retained.

the rest is just piping for coolant/exhaust/intercooler/intake etc.

3x mounts, outer shafts and ECU are the big hurdles.

 

[samurai blues]

the more i think about this conversion, the more doable it seems but sadly not bolt on.

someone will have to be the guinea pig for it all. I think custom shafts to suit CE outers would be the way to go. hang it all off the CE driverside mount. and use the Rcolt gearbox mount. Unpick the CE gearbox chassis bracket and get a new one of them made and welded on (like how the civic guys do K swaps). Then while the welder is out, make up the front an rear roll stopper brackets.

*Rcolt shifter cables
*Rcolt shifter housing on some plate to adapt it to the CE chassis
*fuel system: assuming the Rcolt is dead head system: find a aftermarket ally fuel rail. maybe a 4g15 one would suit? have to confirm all that.
*ecu to suit. w/ Throttle of choice (which is usually ecu dependant).
*probably need custom PS lines
*same for AC if thats retained.

the rest is just piping for coolant/exhaust/intercooler/intake etc.

3x mounts, outer shafts and ECU are the big hu

Kswaps are bolt in solutions no?

Ok wait hang on. I am not following.

So if you have to custom weld on new brackets to mount the new engine/gearbox in then thats way too much work. might as well just throw in a 4G63T and 4wd gearbox. Meek sells a centre diff lock up kit to convert the gearbox to FF. @ least the hardware is bolt on.

I thought that being Mitsubishi there's a crazy good chance the engine/gearbox will just drop right in with the stock mounts... oh well.

 

[unclepaulie]

Kswaps are bolt in solutions no?

Ok wait hang on. I am not following.

So if you have to custom weld on new brackets to mount the new engine/gearbox in then thats way too much work. might as well just throw in a 4G63T and 4wd gearbox. Meek sells a centre diff lock up kit to convert the gearbox to FF. @ least the hardware is bolt on.

I thought that being Mitsubishi there's a crazy good chance the engine/gearbox will just drop right in with the stock mounts... oh well.

9 times out of 10, K swaps need the mounts taken off the chassis in most cases but they sell bolt in chassis mounts

those fold sheet metal bits wrap around the chassis rails, usually located by one bolt and then are stitch welded onto the rails.



I’m unsure if you’ve checked 4g63 prices but that conversion is gonna cost you like 10-15k easy. And they’re pretty damn heavy too. if it was me, I’d be doing a 4G69 swap or even a 4g69 swap but use a 4g64 SOHC head with a major clean up and big ol cam in it. Evo head if you’re baller.


Rcolt motor onto the CE box is probably a good budget option cause no mounts require modding. just need a ECU for it. $$ saved could go into LSD funds

 

[samurai blues]

9 times out of 10, K swaps need the mounts taken off the chassis in most cases but they sell bolt in chassis mounts

those fold sheet metal bits wrap around the chassis rails, usually located by one bolt and then are stitch welded onto the rails.



I’m unsure if you’ve checked 4g63 prices but that conversion is gonna cost you like 10-15k easy. And they’re pretty damn heavy too. if it was me, I’d be doing a 4G69 swap or even a 4g69 swap but use a 4g64 SOHC head with a major clean up and big ol cam in it. Evo head if you’re baller.


Rcolt motor onto the CE box isnt probably a good budget option cause no mounts require modding. just need a ECU for it. $$ saved could go into LSD funds

The DOHC head will fit but with alot of of work. Something about the crank and cam gears not having the same width and some grinding down of some part and some other nonsense.

Best to start with a 4G64 block if gg DOHC, according to the US guys.

But yes, 2.4 DOHC will be a ball of fun.

 

[Spetz]

I too would start with a 4G64 as the deck height is taller than the 4G69 so better R/S ratio

 

[samurai blues]

sorry to dig these up after 2 years lol but how did the Rcolt 4G15T swap go i wonder?