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VL Commodore
180rwhp from XF TB mod!
Started by joel · 20 Apr 2004 · 127 repliesPreserved from CalaisTurbo. Original authors and dates are shown; archived members are not current Holdcom accounts.
20-04-04, 08:57 GMT+10#4
Quote:
Originally Posted by Deano
Has it been down the quarter? What does it do?
Not yet.
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20-04-04, 12:16 GMT+10#5
is that just with exhaust, extractors, cold air, xf tb, ported plenum? if so that is awesome, seeing as turbos are 150 fwkw from factory. what tuning did they do?
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20-04-04, 12:23 GMT+10#6
dude i think its time somebody wrote up a tech article on how to perform this mod, with pictures?
Some original photos have not been recovered yet.
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20-04-04, 13:06 GMT+10#8
sounds pretty high! I wouldn't have thought the throttle body would make that much of a difference, most n/a's i've seen with similar mods make ~ 100rwkw.
Some original photos have not been recovered yet.
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20-04-04, 13:35 GMT+10#9
Quote:
Originally Posted by BrezzaVL
dude i think its time somebody wrote up a tech article on how to perform this mod, with pictures?
Yep i think someone (JOEL!!!) should write something up with pics!!!
Some original photos have not been recovered yet.
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20-04-04, 13:55 GMT+10#10
that's bloody good, I remember my old VLT on 10psi with a 2 1/2 cat back exhaust made 180 rwhp. ran a 14.2 like that. that'll be a quick N/A!! Well done Joel.
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20-04-04, 14:17 GMT+10#11
Quote:
Originally Posted by joel
Thus, realistic value is 171rwhp (127.6rwkw) and torque was 705lb/ft at the rear wheels.
705lb/ft = 955.8531 Nm of torque. Hmm.
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20-04-04, 14:33 GMT+10#12
Quote:
Originally Posted by Sin
705lb/ft = 955.8531 Nm of torque. Hmm.
there was a V12 twin turbo jag that made 1200 Nm of torque in one of the zoom mags i think bit too much torque there for some reason for a n/a 6
Some original photos have not been recovered yet.
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20-04-04, 15:43 GMT+10#13
did they just advance by one tooth for the cam timing? i have done that and it feels like i lose a bit at high revs now. what rpm did peak power occur at?
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20-04-04, 16:20 GMT+10#14
mate were not having a go at you, just think about it
your saying you have 955.85 Nm of torque from a few mods
the stock n/a 6 produces 247 Nm of torque, i believe with the mods you have you should have around the 290-310 Nm of torque not " 955.85 Nm "
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20-04-04, 16:41 GMT+10#15
87 devl the 955.85nm of torque is at the wheels.
remember the diff and gear ratios 'multiply' the torque rating.
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20-04-04, 16:46 GMT+10#16
Quote:
Originally Posted by natho
87 devl the 955.85nm of torque is at the wheels.
remember the diff and gear ratios 'multiply' the torque rating.
oh really? hmm learn somethin new every day, sorry joel my bad
i thought he was talkin bout flywheel :S
Some original photos have not been recovered yet.
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20-04-04, 16:53 GMT+10#17
true but, i think that someone starting with r ending in liffedyno may have altered the sheet so as to make all their hard work (pfft) in tuning and advancing the timing look alot better than it is if you get my drifting technique *wink wink* i personally and impersonally no of this someones idea of work. By the way i know this guy had a stock rex running a 80 shot of zex ^^. ps. my car had a broken cas, i went to a workshop (no names) told me my head was lifting off after extended driving... then charged me for dyno time without fixing it.. cough cough
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20-04-04, 16:55 GMT+10#18
ugh.....no. the engine obviously spins a *few* rpm higher than the rear wheels.
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20-04-04, 22:55 GMT+10#19
joel let us know when you go to willowbank, i'll give you a race maybe
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21-04-04, 00:06 GMT+10#20
Either you are wrong Joel or the general consensus on the stock-> slightly modded output of VL na's is way off the mark. I can maybe after a few vodkas believe your horsepower figure but the torque figure....you may as well tell me it has a million lbs/ft
I did all of the mods you have listed.....it might have had 185hp at the flywheel if it was lucky and an improved torque curve but certainly not a massive increase in peak torque. The mods you have listed will improve peak horsepower much more noticeably than peak torque.
Also I'm not a physics proffessor but every mod you have done (ignore advanced timing everybody can do that) is basically a breathing mod. And breathing mods do not significantly alter peak torque.
To raise peak torque that significantly you need to
(a.) raise compression
(b.) Increase capacity (stroke the motor)
(c.) Forced induction.
You have done (d.) none of the above buddy......
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