vn vers vr minor mods

[vks]

hey guys quick question, i have a vn commodore series 1 and my m8 has a vr series 2 both engines r standard apart from my vn has a cold air intake and a sports rear muffler, my m8's vr has a pod, air restrictor taken out of the intake and a straight pipe instead of a rear muffler both auto's. Im curious who would come in front out of my car and his, any comments would be appreciated

cheers chris

[stocky]

vn most likely

[vks]

thanx stocky much appreciated

[xcop5l]

the vn will because of the differnt ratios in the auto

[greenfoam]

The gearbox has the same ratios VN-VE, it's never changed apart from going electrotech in the VR .

Vks, if the VN isn't broken it should win, but the VR isn't as slow as some people would liek to think, him having a POD and you having a CAI will give you an extra handfull of KW so you should get there. The rear muffler wont matter since the air is allready cooled down and going slow by then

[holden007]

I agree greenfoam, why people think VR's are slow, I reckon Wheels magazine is to blame. I said in previous forums that I beat a BMW 528i 3 times, and looked like no one believed me.

I reckon for cars this age, the condition of the engine will matter the most!

[vks]

My vn has done 294 000 but the engine has been rebuilt , it drives like a dream i mentioned in another thread that i got into high 7's with a pod. Thanks guys for all ur help ill let u guys know 2morrow who wins.

cheers chris

[greenfoam]

There was a guy on the forums ages ago that had stock VR and run 15.65 on the 1/4 mile after he did a couple adjustments to make sure it was running perfectly. In theory a VN with a CAI should take that but in the real world 95% of the VN's on this forum are not running as well as they should and wouldn't do a 15.5. Then again I doubt most of the VR's on here would run a 15.65 either.

holden007 yep that wheels time is a shocker, I know a guy that fairly accuratly timed his VR wagon to a 7.9 0-100 about 5 years ago so they are pretty much on a par with the VN/P as you would expect since they have almost the exact same motor and are only slightly heavier

[stocky]

this reminds me greenfoam, your lexcen, have you got details about what youve done to it exactly? i wouldnt mind a 0-60 time of 7 seconds

[greenfoam]

Yeah, it has
Throttle body: chopped stopper and idle stopper so that it can open 100%, smoothened all the inside of the TB, cut down shaft, knife edged butterfly (still has a tiny flat section to seal properly).

Manifold-throttle adapter: matched to both ends and smothened.

Manifold: match ported, cut down injector lumps things

VS CAI: Been attacked with a heat gun to open much wider, all rubbers infront of it removed, sealed to the airbox with tape, airbox sealed. Matched up the alloy trumpet that leaves the airbox (it had the gasket hanging out in the airflow)

Memcal: Custom memcal

Everything else is stock, well really everything is stock, just been fixed to how it should have been, pity I never had the heads or exhaust off, it would have been faster then. You wouldn't think any of those things would make a difference but it all adds up. Also remember I was still running a 30kg or more towbar on the back.

I reckon I could get another .2 out of it now that I'm smarter with some smoothing in the exhaust let alone the heads

[stocky]

thanks for that writeup. i really gotta do some of that stuff to mine, but i reckon ill screw something up trying. i havent even modified my VS CAI yet

i also need to look at my throttle body. i dont think its opening up all the way. lately when ive been driving ive noticed absolutely no difference between 75% throttle and 100%

[dmitch]

the differences r so minor.. would depend on the driver

[1991_Vn2nV]

Nah the VN would take it. The changes to the VR were for the worse imo, and they dont have the torque curve of the VN/VP's as far as I know. Also the electronic auto isnt as quick compared to the old hydraulic ones we have, they sacrificed quicker shifts for smoothness.

The VR's I have driven dont compare to the VN VP down low, and the Wheels 0-100 time is not too far off. My mate in his mums stock as VP beat my mates VR with a stage 2 shift kit and 2.5 inch exhaust, removed restrictor and CAI. And the VR has only done 140,000km's as well. Up high the VR was just as quick, but down low the VP had it.

They are definitely considerably slower than our VS and the ones I have driven would be pretty close to our VT which seems to match up with the Wheels times for the mentioned cars.

[xcop5l]

i was told vns has a tall first gear and holden changed that in the vp because all the little old nannas were spinning out in the wet

[1991_Vn2nV]

i was told vns has a tall first gear and holden changed that in the vp because all the little old nannas were spinning out in the wet

VN S1 has more torque down low (92% of max torque from 1200rpm) and dies in the ass at 4000rpm, the VN S2 and VP (same engine) have slightly less down low torque (92% of max torque closer to 1500rpm I think) but it continues on a bit higher in the rev range.

[greenfoam]

They were spinning out in the wet, I was 18 or so at the time and remember it being quite news worthy, be sure the VN V6 was a weapon and a half back in 88'. But it was just because the VN has awesome wheelspin potential in the rain with cheap 185's on it , nothing to do with the gearbox, just the engine and the fairly sporting timing holden had in it but they managed to tone it down and bit for the VP and a bit more in the VR

[1991_Vn2nV]

They were spinning out in the wet, I was 18 or so at the time and remember it being quite news worthy, be sure the VN V6 was a weapon and a half back in 88'. But it was just because the VN has awesome wheelspin potential in the rain with cheap 185's on it , nothing to do with the gearbox, just the engine and the fairly sporting timing holden had in it but they managed to tone it down and bit for the VP and a bit more in the VR

lol... VN POWER

[xcop5l]

i might put a set of 185's on the back of my vn and take it for a drive in the wet,strictly for testing pourposes . just to see how hard it was for the little nannas to drive

NOT that its going to rain any time soon

[PaRaDoX]

i got taken by my mates VR, however i did have 5 people in the car + full tank of petrol on a stock tune and he had just himself and a passenger, only lost by 1 carlength (my front bumper was at his rear bumper) once i got my weight moving i caught up, ...