Perdana v6 : Road to 300whp.... and beyond

marsha1l_v6

500 RPM

marsha1l_v6

500 RPM
Aug 1, 2013
666
130
543
Kuala Lumpur
Hahahahhaa whoops. Short term memory loss huhu. Yeah you pakai standalone, so I would say pretty confidently it's the problem with your tune. If you don't mind me asking, who was your tuner? Main api means what? You got launch control/flat shift enabled? If you do it occasionally it shouldn't cause much problem kot depending on how aggressive it is setup, but it CAN cause damage in certain scenario. My 4g18t grenaded pretty spectacularly while I was on my rolling launch control where the ignition went to like -20deg retard at 5000rpm full throttle 1.2bar, one of the pistons decided to say bye bye. But other than that self destructing piston, the other pistons were actually perfectly fine. What I mean by your tune problem is your ignition map, it may had been too aggressive(too much advance) at certain point of the map, either that or your 'distributor', more accurately known as a crank/cam sensor which can be adjusted on the earlier generation Mitsu engines, might had been advanced inadvertently which would throw your base timing off and advance the whole map in real life. How much boost you were running?

hahaha..i thought u know main api means wat..for now i assume it as ignition timing. No, i didnt have and launch control or flat shift enable. Tuner is from the shop calvin/Kevin iinm from ken racing. only 0.7(daily) and 1 bar (weekend). yea, the distributor can be adjust but wouldnt the tuner check that before tune?...i was busy video recording first 30min on dyno. hahaha
 

Nightstalker1993

Known Member
Senior Member

Nightstalker1993

Known Member
Senior Member
Aug 30, 2010
265
128
543
Subang Jaya
hahaha..i thought u know main api means wat..for now i assume it as ignition timing. No, i didnt have and launch control or flat shift enable. Tuner is from the shop calvin/Kevin iinm from ken racing. only 0.7(daily) and 1 bar (weekend). yea, the distributor can be adjust but wouldnt the tuner check that before tune?...i was busy video recording first 30min on dyno. hahaha
Yeah, that and the ECU should be adjusted together to make sure the base timing is correct, meaning if the ecu request 10deg it is actually 10deg. But it could be possible that AFTER the tune someone may had messed with it and altered the position and thus, the overall timing calibration, making the ecu thinking it's firing at 10deg but it might actually be firing at 15deg. I won't know what is 'main api' lorr god knows what rojak term is that, I only know proper English term saja but from his description yeah probably meaning too advance ignition timing causing knock. You're not running particularly high boost either, your piston ring lands really shouldn't had cracked so prematurely. Would definitely recommend to change tuner. Can recommend you try Rahmat @ RNR Autosport or Thomas @ GT Auto. These 2 tuners I trust them and they really know in depth on what they are doing. My 4g18t lasted for quite a decent amount of time before it self destructed, and survived Sepang, countless Genting trips and 1.2bar boost, occasionally hitting 1.3bar, with EGT occasionally hitting 950c as well.

And also, before the final version of my 4g18t, when I was running stock pistons, I cracked the ring lands and melted a small part of the piston as well due to using a crude reflash method to run the engine, which worked but wasn't really meant for high boost. And shortly after I rebuilt my engine after that, with a very rough base map tune, my friend took my car for a spin chasing Volkswagens and when he came back my breather hose was smoking, tore down the engine again and found out the ring lands had cracked as well, all of these was definitely due to knock. Would also suggest you go take your piston and go knock on the Ken Racing guy's head.
 

vr2turbo

Beyond 20,000 RPM!
Helmet Clan
Moderator

vr2turbo

Beyond 20,000 RPM!
Helmet Clan
Moderator
May 11, 2010
29,631
8,278
1,713
Petaling Jaya
hahaha..i thought u know main api means wat..for now i assume it as ignition timing. No, i didnt have and launch control or flat shift enable. Tuner is from the shop calvin/Kevin iinm from ken racing. only 0.7(daily) and 1 bar (weekend). yea, the distributor can be adjust but wouldnt the tuner check that before tune?...i was busy video recording first 30min on dyno. hahaha
I kept my standard boost at 0.6. My mechanic mentioned boosting higher like to 1 and 1 plus definitely more chance of higher wear rate......lol
 

marsha1l_v6

500 RPM

marsha1l_v6

500 RPM
Aug 1, 2013
666
130
543
Kuala Lumpur
Yeah, that and the ECU should be adjusted together to make sure the base timing is correct, meaning if the ecu request 10deg it is actually 10deg. But it could be possible that AFTER the tune someone may had messed with it and altered the position and thus, the overall timing calibration, making the ecu thinking it's firing at 10deg but it might actually be firing at 15deg. I won't know what is 'main api' lorr god knows what rojak term is that, I only know proper English term saja but from his description yeah probably meaning too advance ignition timing causing knock. You're not running particularly high boost either, your piston ring lands really shouldn't had cracked so prematurely. Would definitely recommend to change tuner. Can recommend you try Rahmat @ RNR Autosport or Thomas @ GT Auto. These 2 tuners I trust them and they really know in depth on what they are doing. My 4g18t lasted for quite a decent amount of time before it self destructed, and survived Sepang, countless Genting trips and 1.2bar boost, occasionally hitting 1.3bar, with EGT occasionally hitting 950c as well.

And also, before the final version of my 4g18t, when I was running stock pistons, I cracked the ring lands and melted a small part of the piston as well due to using a crude reflash method to run the engine, which worked but wasn't really meant for high boost. And shortly after I rebuilt my engine after that, with a very rough base map tune, my friend took my car for a spin chasing Volkswagens and when he came back my breather hose was smoking, tore down the engine again and found out the ring lands had cracked as well, all of these was definitely due to knock. Would also suggest you go take your piston and go knock on the Ken Racing guy's head.
main api in away ecu signal send to power tr and coil<<--ring any bell?

my mech adjust the distributor last time when using stock ecu and 1 bar setup...after tune, didnt touch the distributor. yea...found a tuner abg mie charade...not sure u know or not. hopefully all is well hahaha..feedback from machine shop, crank cant be use..hahaha..

I kept my standard boost at 0.6. My mechanic mentioned boosting higher like to 1 and 1 plus definitely more chance of higher wear rate......lol
yup.. anything beyond stock setup..there will be chain reaction.

30k or 300k?
3xk km. conversion was done about 1 year 8 month ago
 
Last edited:

^pomen_GTR^

7,000 RPM
Senior Member

^pomen_GTR^

7,000 RPM
Senior Member
May 13, 2010
7,510
1,689
1,713
The Mines
main api in away ecu signal send to power tr and coil<<--ring any bell?

my mech adjust the distributor last time when using stock ecu and 1 bar setup...after tune, didnt touch the distributor. yea...found a tuner abg mie charade...not sure u know or not. hopefully all is well hahaha..feedback from machine shop, crank cant be use..hahaha..



yup.. anything beyond stock setup..there will be chain reaction.



3xk km. conversion was done about 1 year 8 month ago

wow thats quick...

i would say most likely your ignition a.k.a api too advanced...
 

marsha1l_v6

500 RPM

marsha1l_v6

500 RPM
Aug 1, 2013
666
130
543
Kuala Lumpur
wow thats quick...

i would say most likely your ignition a.k.a api too advanced...
Yea...most mech i asked mention the same thing...hahaha

Probably gonna go to the same tuner because the shop will setup all trigger switch and wiring for the setup im interested in. Gonna advice him on setting distributor back to default.

Anyway, im pretty sure 70% my crank walk due to excessive clamping force of my pressure plate. Rated 250% more than oem :banghead:

will post up picture in comparison the spring between exed 3 puck pressure plate vs cc stage4 pressure plate. Spring mcm lori punya
 

^pomen_GTR^

7,000 RPM
Senior Member

^pomen_GTR^

7,000 RPM
Senior Member
May 13, 2010
7,510
1,689
1,713
The Mines
Yea...most mech i asked mention the same thing...hahaha

Probably gonna go to the same tuner because the shop will setup all trigger switch and wiring for the setup im interested in. Gonna advice him on setting distributor back to default.

Anyway, im pretty sure 70% my crank walk due to excessive clamping force of my pressure plate. Rated 250% more than oem :banghead:

will post up picture in comparison the spring between exed 3 puck pressure plate vs cc stage4 pressure plate. Spring mcm lori punya

why so hard clutch when u were driving on the street...

exedy heavy duty clutch cover with 3puck/4puck/semi metallic plate is enough for below 400whp application
 

marsha1l_v6

500 RPM

marsha1l_v6

500 RPM
Aug 1, 2013
666
130
543
Kuala Lumpur
why so hard clutch when u were driving on the street...

exedy heavy duty clutch cover with 3puck/4puck/semi metallic plate is enough for below 400whp application
Didn't expect rated that high.. Hahaha.. Looks black n shiny

Your mech control the bearing tolerances properly or not ?
It was stock to begin with.. Only top overhaul were done before transplant..

Anyway, sneak peak..rebuild is done . Waiting for final touch n running in for 1k km...

 
  • Like
Reactions: Izso and sweelt

marsha1l_v6

500 RPM

marsha1l_v6

500 RPM
Aug 1, 2013
666
130
543
Kuala Lumpur
Assalammualaikum, good day and good morning..hahaha

so yesterday was dyno day. Touchup tune after rebuild internal + add failsafe + add few switches + rewiring. Reached my target whp. Below are the result. apple to apple comparison with previous dyno run @0.77 bar boost, gain around 11hp / 1.02kg torque.



so above are the result post rebuild after running in. At high boost setting, turbo out of breath at higher rpm range. Still using stock evo3 turbo. Will change to 20g ball bearing setup once turbo kong.

This rebuild setup 100% machine shop build. no forge item. stock conrod/crank but upsize on the piston size due to damage on cylinder wall caused by piston ringland crack. able to support low 400hp on wheel.

For now, no more engine upgrade. Back to handling/braking department.

Its a long journey and finally reach my target :party::rock:
 

marsha1l_v6

500 RPM

marsha1l_v6

500 RPM
Aug 1, 2013
666
130
543
Kuala Lumpur
Congratulations on mission accomplished
thanks

thats a great well documented build. kudos to you!
thanks for going through..hope it helps in anyway to other forum members.

To sum up here few more picture

heart surgery success


sexy simple ass


New shoes!


With that new shoes, further mod on handling/traction will start next year. Now listing down mod needed to accomplish next target.

Next year target SIC under 2:50 and 201m drag under 9sec finish off with new ?? :listen:driveterrain ??

TBC next year...happy boosting :banana::burnout:
 

YellowFlash

Known Member
Senior Member

YellowFlash

Known Member
Senior Member
Sep 28, 2009
306
33
1,528
Jb
thanks


thanks for going through..hope it helps in anyway to other forum members.

To sum up here few more picture

heart surgery success


sexy simple ass


New shoes!


With that new shoes, further mod on handling/traction will start next year. Now listing down mod needed to accomplish next target.

Next year target SIC under 2:50 and 201m drag under 9sec finish off with new ?? :listen:driveterrain ??

TBC next year...happy boosting :banana::burnout:
Wow, very nice car, very nice build! Congrats on your 300whp. So far done any SIC lap before the build?
 

marsha1l_v6

500 RPM

marsha1l_v6

500 RPM
Aug 1, 2013
666
130
543
Kuala Lumpur
Need more poweeeeeeeeeerrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr......hhahhahahahha
hahaha..maybe abit more...squeeze out few more ponies after turbo change later

Wow, very nice car, very nice build! Congrats on your 300whp. So far done any SIC lap before the build?
Nope, not yet. Probably next year. After seeking advice from mech that maintain/handle rally car, need to buy adjustable chamber so that SIC run will be worth it.
 

YellowFlash

Known Member
Senior Member

YellowFlash

Known Member
Senior Member
Sep 28, 2009
306
33
1,528
Jb
hahaha..maybe abit more...squeeze out few more ponies after turbo change later



Nope, not yet. Probably next year. After seeking advice from mech that maintain/handle rally car, need to buy adjustable chamber so that SIC run will be worth it.
i guess you can always try out different set up at SIC, after each mod, you will be able to feel the difference in handling, in power... 300whp is pretty powerful car, next time see your perdana on the highway must faster give way :biggrin:
 

vr2turbo

Beyond 20,000 RPM!
Helmet Clan
Moderator

vr2turbo

Beyond 20,000 RPM!
Helmet Clan
Moderator
May 11, 2010
29,631
8,278
1,713
Petaling Jaya
With that new shoes, further mod on handling/traction will start next year. Now listing down mod needed to accomplish next target.

Next year target SIC under 2:50 and 201m drag under 9sec finish off with new ?? :listen:driveterrain ??

TBC next year...happy boosting :banana::burnout:
What tyres are you on now?
 

marsha1l_v6

500 RPM

marsha1l_v6

500 RPM
Aug 1, 2013
666
130
543
Kuala Lumpur
i guess you can always try out different set up at SIC, after each mod, you will be able to feel the difference in handling, in power... 300whp is pretty powerful car, next time see your perdana on the highway must faster give way :biggrin:
Yup.. Try and error ...Hahaha
No need give way.. Urs pun 3xxwhp... My car is good sprinter . Not marathon .. Hahaha

What tyres are you on now?
Ps3 215/45/17 all around.. Same as before.. Thread still around 60%