Eaton Trutrack 4.11s inbound. I was doubtfull of shifting to the 4.11s on a road car, based mostly on old skool cars that very quickly ran out of gears and reved to the moon at relatively moderate speed. My brother dropped 4.11s in his VZ ute, and its changed my view completely - with the factory gearbox ratios in the 6spd manual box - really not an issue for these cars now. Have a spreadsheet doing the math for me, taking into consideration wheel/tyre size (rolling diameter), gearbox and final drive ratios Im seeing the factory diff ratio for my VF S1 (3.45 factory final ratio ) pulling 110Ks @ 1576rmp in 6th. 4.11s increase the RPM to 1878 at the same 110 klicks. I can live with that. :-) Hell, 5th gear will actually be a functional gear around town again - and just might be a little more economical if the right boot can stay out of it (relatively heavy cam has made 5th unfriendly between 50 > 60 klicks lol)
Hi, Just wondering if you can help me, I have an 08 maloo, I've had OTR fitted, also 3" stainless exhaust, had a tune done on it, everything went well during tune, after leaving the mechanic I noticed a miss in the motor, that bad it creates a back fire, took it back to the mechanic in which he put it back on the dyno, it happened 3 more time at different speeds, then he took it for a drive, it missed again but as he said he could not get it to do the miss again, he suggested replacing the ECU saying it must be faulty, as the fault wasn't I my car before the tune, have you heard of this before , the miss is a complete loss of 12v power to cause the car to speed up, I can drive around at normal speed normal acceleration, but under heavy acceleration it will happen at some point, it doesn't happen constantly, only periodically
@angry9901 hahaha, good mechanic's are hard to find, buf this guy does the tun, the car never had a miss in it till he did the tune now i have this miss in my car, i have a new ECU, and ive priced the fitment of the ECU to my car (done by holden service center), I have a good regular mechanic who generally looks after my 2 cars normally
Ummm, fraid, not. This video doesn't just cover race car mods, but mods for the enthusiast on the street and occasional track day. Therefore, the mods, including rebuild of OEM, diff gears, truetrac etc. are all relevant.
The only race track the full spool might work better is the drag strip, anywhere you have to go around corners, you are going to be faster with a mechanical locker. People use spools because they are cheap not because they give you better times.
@@Low760 Clearly a loaded question as you obviously know they use a spool. You likely also know that the diff is another control part - used to save COST not because its the best performing option on the planet. Theyre undoubtably strong (AF) and cheap, relatively speaking - so a decent tradeoff, especially when trying to keep parity across the sport (Not suggesting that they have achieved parity, but they are apparently trying to lol). Where cost isnt an issue and performance is god - look to F1... In car tunable electro-hydraulic LSD.
It is a wonder you didn’t point out go karts use a solid rear end. Not the best solution but for simplicity it does the job. The first comment was that a locked diff was the only way to go, which it obviously is not. How many V8 Supercars would retain a spool if it was no longer mandated? Zero.
I thought the CIG locker was a must have mod for SV6. 😊
Eaton Trutrack 4.11s inbound. I was doubtfull of shifting to the 4.11s on a road car, based mostly on old skool cars that very quickly ran out of gears and reved to the moon at relatively moderate speed.
My brother dropped 4.11s in his VZ ute, and its changed my view completely - with the factory gearbox ratios in the 6spd manual box - really not an issue for these cars now.
Have a spreadsheet doing the math for me, taking into consideration wheel/tyre size (rolling diameter), gearbox and final drive ratios Im seeing the factory diff ratio for my VF S1 (3.45 factory final ratio ) pulling 110Ks @ 1576rmp in 6th. 4.11s increase the RPM to 1878 at the same 110 klicks. I can live with that. :-)
Hell, 5th gear will actually be a functional gear around town again - and just might be a little more economical if the right boot can stay out of it (relatively heavy cam has made 5th unfriendly between 50 > 60 klicks lol)
Ah yes slow speeds with a big cam = bucking good fun
what you said is spot on with the general advice, but when have you heard of a truetrak failing?
Truetrac or similar is on my cards as well as diff bush upgrade for my vf 6l and ratio change to 3.27 from 2.95.
So many tempting mods...I think I will make an appointment with my accountant!
Would you recommend changing the diff gears out at home?
Ah no, that job is best done by a diff specialist.
Wavetrac all the way.
Hi,
Just wondering if you can help me, I have an 08 maloo, I've had OTR fitted, also 3" stainless exhaust, had a tune done on it, everything went well during tune, after leaving the mechanic I noticed a miss in the motor, that bad it creates a back fire, took it back to the mechanic in which he put it back on the dyno, it happened 3 more time at different speeds, then he took it for a drive, it missed again but as he said he could not get it to do the miss again, he suggested replacing the ECU saying it must be faulty, as the fault wasn't I my car before the tune, have you heard of this before , the miss is a complete loss of 12v power to cause the car to speed up, I can drive around at normal speed normal acceleration, but under heavy acceleration it will happen at some point, it doesn't happen constantly, only periodically
Sounds like you need a new mechanic not a new ECU. You must have the only faulty ECU Holden put into a VE.
@angry9901 hahaha, good mechanic's are hard to find, buf this guy does the tun, the car never had a miss in it till he did the tune now i have this miss in my car, i have a new ECU, and ive priced the fitment of the ECU to my car (done by holden service center), I have a good
regular mechanic who generally looks
after my 2 cars normally
Can I have your old “rooted” ECU? Pretty please.
Still in my car bud need time to change out
Mate… love your videos… and have done for a long time…
But you have spoken some bullshit!!
Full spool is the only way to go on the race track
Ummm, fraid, not. This video doesn't just cover race car mods, but mods for the enthusiast on the street and occasional track day. Therefore, the mods, including rebuild of OEM, diff gears, truetrac etc. are all relevant.
The only race track the full spool might work better is the drag strip, anywhere you have to go around corners, you are going to be faster with a mechanical locker. People use spools because they are cheap not because they give you better times.
@@angry9901 what do v8 supercars use?
@@Low760 Clearly a loaded question as you obviously know they use a spool.
You likely also know that the diff is another control part - used to save COST not because its the best performing option on the planet.
Theyre undoubtably strong (AF) and cheap, relatively speaking - so a decent tradeoff, especially when trying to keep parity across the sport (Not suggesting that they have achieved parity, but they are apparently trying to lol).
Where cost isnt an issue and performance is god - look to F1... In car tunable electro-hydraulic LSD.
It is a wonder you didn’t point out go karts use a solid rear end. Not the best solution but for simplicity it does the job. The first comment was that a locked diff was the only way to go, which it obviously is not. How many V8 Supercars would retain a spool if it was no longer mandated? Zero.
The vf lsa 9.5" irs rear is stronger and has multiple 8 second irs vf gts's....