4g93 Mivec Turbo Waja project(Many pictures be warned)

[Nightstalker1993]

Some updates,

Just bought some sweet MIVEC gear ratios. With this now my 1st-2nd gear shift would be much better hopefully.

My current ratios are like this, 8400rpm drop to 4565rpm on shifting from 1st to 2nd gear

With the MIVEC ratios, from 8400rpm to 5326rpm , much better than 4565rpm lol

Also, just a few days back on the way to work I boosted slightly into 3rd gear and right after lifting off, I have no power steering nor aircond compressor, reached work and found out the tensioner pulley had somehow came loose, so used my company tools and fixed it when I reached work. Cannot tahan weyh drive home without power steering or aircond

 

[gunnerzz]

Some updates,

Just bought some sweet MIVEC gear ratios. With this now my 1st-2nd gear shift would be much better hopefully.

My current ratios are like this, 8400rpm drop to 4565rpm on shifting from 1st to 2nd gear

With the MIVEC ratios, from 8400rpm to 5326rpm , much better than 4565rpm lol

Also, just a few days back on the way to work I boosted slightly into 3rd gear and right after lifting off, I have no power steering nor aircond compressor, reached work and found out the tensioner pulley had somehow came loose, so used my company tools and fixed it when I reached work. Cannot tahan weyh drive home without power steering or aircond

Very manja one eh cannot live without power steering...i understand the aircond part...hehehehe.

your company uses Snap On...wow.
guess soe of it is missing already or at your house

 

[Nightstalker1993]

Very manja one eh cannot live without power steering...i understand the aircond part...hehehehe.

your company uses Snap On...wow.
guess soe of it is missing already or at your house

It's not like normal kancil without power steering man, even a normal highway curve have to wrestle the steering wheel pretty hard without power steering weyh. And yeah most aviation companies uses Snap-On haha. And no la, tools missing I'm the first one to die got la

 

[vr2turbo]

Wah! nice woh, everything aviation stuffs......

 

[Nightstalker1993]

Wah! nice woh, everything aviation stuffs......

Pinjam from kerja jerr, I wish they were mine haha

Anyway, some updates, car came out from the workshop already and am very happy on the work done so far. Changed my 1st gear ratio, so now the gears are closer, makes 1-2 shifts much nicer, but starting off bogs the car down more now since the 1st gear is longer, coupled with my long final drive makes it even worse. Also swapped the LSD from the more aggressive 45deg cam angle to the lesser aggressive 35deg cam angle. Poured in the Cusco LSD oil I purchased from Japan and damn the LSD works superb now. Everyday driving improved tremendously, the diff feels like a standard diff now in the sense that it does not chatter but will still lock up when there's enough torque. Should've done this since day one!

Swapping the ratios, alot more complicated than it seems

LSD NOT in the 45deg cam. The 35deg cam is not seen in any of the holes.

How your gear synchro engagement teeth is NOT supposed to look like....

Cusco oil mouuu

And right after the car came out, my monoblock died. hopefully it can be fixed, trying to fix it now

Bonus video

Also took the opportunity to overhaul almost completely my aircond system, changed the cooling coil, condenser, expansion valve and receiver dryer. Now the aircond is super cold even in extremely hot afternoons. About time I gave the aircond system an overhaul considering it was 17 years old already....

 

[stupidcar]

Also took the opportunity to overhaul almost completely my aircond system, changed the cooling coil, condenser, expansion valve and receiver dryer. Now the aircond is super cold even in extremely hot afternoons. About time I gave the aircond system an overhaul considering it was 17 years old already....

Boleh thana 17 years, not bad wei.

 

[Nightstalker1993]

Boleh thana 17 years, not bad wei.

Actually it was all good until the engine swap. I think while it was left to rot for 1.5 years, shit entered the system maybe because before the engine swap the aircond was damn cold during the afternoon as well.

 

[Izso]

that sounds like a lotta money spent in the last month. And damn bro, your upgrades are always so damn interesting! Who did the GB update for you?

Also how the hell did a transistor snap like that?

 

[Nightstalker1993]

that sounds like a lotta money spent in the last month. And damn bro, your upgrades are always so damn interesting! Who did the GB update for you?

Also how the hell did a transistor snap like that?

Yes it's damn alot of money. Bill was almost 2k including labour for gearbox remove install/barai gearbox and aircond overhaul, excluding the price of the gears in the first place and also the gear oil. Ok la not say very interesting also, this one minor update only. After this should be reducing alot on the updates edi just need to tune here and there, up boost, then hopefully prep it for sepang track day hehe. My usual workshop in SS19 did the work, but I was also there to join as need to identify some parts and also decide which parts to use. Some the gears are the same with the ones I bought, but the conditions of the synchro teeth are not the same, so have to decide which is the better one.

Now finally reasonably happy while driving the car edi, smooth turns and 1-2 don't suck as bad anymore, just need to fix the monoblock for my missing boom boom boom

 

[vr2turbo]

Modding cannot be helped, sure cost a lot of money......

 

[Nightstalker1993]

Modding cannot be helped, sure cost a lot of money......

nvm, whatever i spend, still not as much as #GarageBMWJZ

 

[Izso]

nvm, whatever i spend, still not as much as #GarageBMWJZ

omg the pain

 

[vr2turbo]

From salt to acid on the wound......hhahhahahhaha

 

[Nightstalker1993]

From salt to acid on the wound......hhahhahahhaha

Don't make me sound until so bad la

omg the pain

Nvm, it'll be fine soon....

 

[vr2turbo]

Now giving him morphine........hhahahhahahha

 

[Nightstalker1993]

Long time no update liao, here's some update, good info in case you guys encounter the same problem.

After the GB dissection, my water temp gauge became unreliable. When the compressor kicks in, the water temp will go up, and when the compressor turns off the temp will go down immediately, confirmed from the ECU reading that the engine is not overheating. Changed the temp sender for the gauge and problem still same. Mech suggested to check my grounding and I just gave the grounding cable and mounting points on the chassis some grinding, and also added another grounding cable as well while I was at it, and the temp sender started working like normal again

Before

After

Also another problem was recently I noticed idling was rougher than usual and town driving is just pretty horrible at really low RPM where the engine can get really jerky. Thought it was my tuning problem but no matter what I do I just couldn't tune it out. Wanted to play around with the cam timing to reduce the overlap, opened the timing belt cover and, lo and behold, the intake cam had move itself all the way to one extreme. Somehow the 5 allen bolts holding the cam gear down wasn't torqued properly and required very light force to get it to loosen.

Although the cam markings shows that it is full Retard, it is actually at full Advance. The markings on the cams are reversed. With the intake cam fully advanced, the valve overlap is alot more, and I was pretty lucky the valve did not kiss the piston!

The cam gear had moved 8 markings on the gear, 1 marking representing 2 crank degrees. The cam had advanced a whole 16 degrees!

Adjusted it back and give it slightly more retard this time, and idling was smoother with more vacuum and driving around town is soooo much smoother now with no jerky jerky.

 

[Izso]

holy shit.. super close call there! Did you loctite the damn nuts?

 

[parakey]

holy shit.. super close call there! Did you loctite the damn nuts?

I dont think he'll want to do that to his adjustable sprockets

 

[vr2turbo]

I dont think he'll want to do that to his adjustable sprockets

Yup, he did mentioned not torqued properly.....

 

[^pomen_GTR^]

I dont think he'll want to do that to his adjustable sprockets

actually he should...

thats the best practice...once cam is adjusted, dynoed/tuned to suits and confirm at specific degree...

then use loctite to lock it...

 

[parakey]

actually he should...

thats the best practice...once cam is adjusted, dynoed/tuned to suits and confirm at specific degree...

then use loctite to lock it...

These things don't typically come loose on their own, do they?

 

[Nightstalker1993]

holy shit.. super close call there! Did you loctite the damn nuts?

Yeah, luckily using low comp pistons and 1.5mm thick gasket hahahahaha

Yup, he did mentioned not torqued properly.....

God knows la how it came loose. When I loosened that 5 bolts to readjust it back, it was damn loose. Using those 'L' shape allen key, I can just loosen it with the end with the lesser leverage.

actually he should...

thats the best practice...once cam is adjusted, dynoed/tuned to suits and confirm at specific degree...

then use loctite to lock it...

Belum masuk dyno ma, main main saja just to get it driving OTR town driving and idle nicely haha

These things don't typically come loose on their own, do they?

Loctite actually got a few colours grades, eventhough the bottle is all red.

http://henkeladhesivesna.com/blog/the-difference-between-red-blue-green-and-purple-threadlockers/

Mr. DIY got sell the cheap china brand Threadlocker RED but I am not sure how strong is it compared to the actual Loctite RED, as the original Loctite RED is their strongest one and is meant to be loosened with heat.... Original Loctite branded threadlocker is hella expensive.

 

[vr2turbo]

Wonder if after loctite, later want to remove the bolt, can it come off?

 

[gunnerzz]

Wonder if after loctite, later want to remove the bolt, can it come off?

just check their site,got 2 type;
1.type only require manual tool.with a bit more force of coz.
2.type require heat to loosen the bolt.260 degree of heat.

 

[parakey]

2.type require heat to loosen the bolt.260 degree of heat.

Habis lah, the sprocket, camshaft and the attached seals