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jason88eh
P Plater
37 Posts
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 Posted - 06 Apr 2011 : 8:27:06 PM
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Anyone know the weights of a VN v6 and the V8. Trying to figure out what my Eh weighs now compared to the original 179. And if going to the V8 will make it much heavier.
Cheers Jason
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VNGRPA
Fully Licenced
426 Posts
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Posted - 06 Apr 2011 : 8:52:03 PM
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| the v6 is 188kg and the v8 is like 320kg thats the old 304 v8 i think dont quote me on that but |
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jason88eh
P Plater
37 Posts
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VNGRPA
Fully Licenced
426 Posts
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Posted - 06 Apr 2011 : 9:30:19 PM
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| not a problem mate i looked into it myself for the vn the newer v8 are lighter i have been told |
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jason88eh
P Plater
37 Posts
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Posted - 06 Apr 2011 : 9:46:35 PM
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| It's for the EH. Just looking for options of engine upgrade. Can't decide on supercharged v6, 304, or going to an alloy v8(Rover, Toyota, BMW, Audi) |
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VNGRPA
Fully Licenced
426 Posts
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Posted - 06 Apr 2011 : 9:52:28 PM
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| get the supercharged 6 and stroke it that would be cool, you always here people say there going to stroke 1 but you never seen it happen, and theres alot to change if your going v8 but it would look good with a blower sitting out of the bonnet |
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jason88eh
P Plater
37 Posts
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Posted - 06 Apr 2011 : 9:59:18 PM
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| there will be no blower sticking out the bonnet, the thing is a bit of a sleeper. lots of surprised faces when they see the V6 under the hood. I want to hear a stroked supercharger v6 with decent exhaust before i decide if i want to go with it. |
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Mechknight73
National Driver
1001 Posts
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Posted - 07 Apr 2011 : 5:23:49 PM
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| There is an "off the shelf" version of the Ecotec V6 that COME Racing build. It's a 200 kW V6, and the last time I saw one was in a '48 Ford Prefect ute. The cam is a little lumpy, but I'm sure they'd have the specs of it up on their website |
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jason88eh
P Plater
37 Posts
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Posted - 07 Apr 2011 : 7:34:25 PM
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| Will the later Ecotec V6 fit straight in or are they different. |
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VNGRPA
Fully Licenced
426 Posts
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Posted - 07 Apr 2011 : 8:05:11 PM
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| it should fit straight in the Buick and the ecotec are the same just different internals im pretty shore |
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VNGRPA
Fully Licenced
426 Posts
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Posted - 07 Apr 2011 : 8:08:09 PM
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| just called a mate who has a ecotec in a vr witch came out with a Buick and he didn't have to change a thing he said so they must be the same |
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jason88eh
P Plater
37 Posts
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Posted - 07 Apr 2011 : 8:37:16 PM
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| Will exhaust ports be the same as the headers are custom made. Still can't decide on a worked 6 or go to an 8. |
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jason88eh
P Plater
37 Posts
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Posted - 07 Apr 2011 : 8:38:23 PM
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| I'd have to change the computer going to an ecotec wouldn't I. |
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VNSVLE
Forum Moderator
1316 Posts
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Posted - 08 Apr 2011 : 09:11:34 AM
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| Yes ECM and possibly wiring will need to be changed over for an ecotec. Not 100% sure on the exhaust and as for the weight as an example the Kerb weight of the executive is 1310kg as opposed to the SS Kerb weight of 1403kg. There is not a great deal of difference between the SS and executive except for the wheels the V8 and the body kit. Taking into consideration these differences I cant see a great deal of difference in weight. |
What's the difference between understeer and oversteer?
Understeer is when the driver is scared.
Oversteer is when the passenger is scared. |
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VNGRPA
Fully Licenced
426 Posts
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Posted - 08 Apr 2011 : 3:27:30 PM
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| the exhaust ports are different between the two the Buick has a d shape ports were the ecotec have more of a perfect o shape and the ports are slightly off by a couple of mills ,and as for the wiring mate that's a hole wiring harness job for eg your engine in your car has no cam sensor but the ecotec do have one, there is a supercharger kit that you can buy for the Buick motor now for around the 2g mark but that covers everything from wiring, ecu, injectors, supercharger of course, the list goes on but for that price you could pick up a really good v8 or a cheap v8 and stroke it if you know someone to build it for you |
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VNGRPA
Fully Licenced
426 Posts
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Posted - 08 Apr 2011 : 3:46:27 PM
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| mate i had a vq statesman that i picked up for $80 no motor of corse got a 304 for 200 off ebay spent about $1300 on a 333 stroker kit the street torker motor, built it myself to save money and it would eat the 355 stroker easy 383 would catch me but i would still beat them off the line, all up it coasted around the 2g mark with rego after i did that i wonted the v6 back it was fun having the v8 but the supercharged v6 is just so much better well thats my opinion and i love v8's |
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jason88eh
P Plater
37 Posts
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Posted - 09 Apr 2011 : 07:58:13 AM
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| I'm thinking for the mean time get a supercharger got my motor and think more what I want to do can always sell the supercharger when I'm finished. |
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Mechknight73
National Driver
1001 Posts
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Posted - 14 Apr 2011 : 10:15:56 PM
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| The Ecotec had a supercharged version that pumped out 167kW, but is still good for more power with a few mods. The V6 in an engineering sense requires less work; takes up less space, weighs less, and has the advantage, in stock form anyway, of being more fuel efficient. In a lightweight car like the EH, it would make more sense. Sure everybody likes the idea of a V8 in a classic EH, but there's a lot more work involved in getting it right by comparison |
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jason88eh
P Plater
37 Posts
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Posted - 22 Apr 2011 : 2:10:53 PM
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| Pretty sure im going to stay with the v6 get a second v6 motor and work it up while still driving mine around. Anyone run a dual exhaust on a v6 at all. |
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Mechknight73
National Driver
1001 Posts
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Posted - 23 Apr 2011 : 5:11:17 PM
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| Haven't seen it on an EH before, but remember this if you do; run twin catalytic converters, and ask the exhaust shop what kind of mufflers you need for it to be "street legal" if you want headers. Also, tell them you want a "balance tube;" a pipe that joins the two sides of the exhaust up, usually behind the catalytic converters. This will not only improve the sound but help balance the exhaust |
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jason88eh
P Plater
37 Posts
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Posted - 26 Apr 2011 : 5:56:44 PM
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| Haven't seen what on an EH before mate. Won't be for a while before I do it just getting the perfect set up before I start buying things. |
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Mechknight73
National Driver
1001 Posts
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Posted - 27 Apr 2011 : 2:24:18 PM
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Haven't seen an EH running twin exhausts on a V6 before, but should be a relatively easy thing to do. At worst, it might require modifying the fuel tank, but otherwise there's nothing under there to get in the way. If possible, I'd get an early Holden crossmember (EH if possible) and put your buildup engine on it as an engine bench. Bolt some heavy duty castors to the back of it, and fit a "dummy shaft" at the back of the transmission to keep the oil in. As the Ecotec will likely need a different harness, use this to run your engine on the test bed. fit the headers, and the rest of the exhaust system you plan to fit to the car. Testing it out of the car will let you know whether it's any good before you bolt it on, and whether it will fit the way you want it to.
I hope to start in about 18 months from now building a Holden one tonner, likely to be WB based. Besides a lot of custom bodywork, it will be running a VP spec V6, likely worked, with twin truck style exhaust stacks. With the exception of the balance tube, both heads will be running completely separate exhausts. Genie headers, into high flow catalytic converters, to 2 1/2 inch freeflow mufflers, possibly two resonators to quieten it down, exiting via two 2 1/2 inch stainless steel stacks.
If you can build the engine yourself, Ecotecs are cheap to pick up, more or less the latter day Holden Red. If you can buy a whole car to wreck, you may even have the advantage of getting your money back by selling the parts you don't need e.g body panels, interior. It also means you can study how it goes together in its original form, which might give you some ideas of how to make it work on the EH.
Here's a place I thought you might find useful. The link is about the EH conversion specifically, but you could always ask them whether you can modify your existing harness to take an Ecotec:
http://www.v6conversions.com.au/EJ-EH%20V6.HTML |
Edited by - Mechknight73 on 27 Apr 2011 2:31:03 PM |
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gstreiny
Starting in the driveway
3 Posts
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Posted - 29 Apr 2011 : 8:25:01 PM
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quote:
Originally posted by jason88eh
Will exhaust ports be the same as the headers are custom made. Still can't decide on a worked 6 or go to an 8.
Buicks are tonnes better anyway there more rattley but they go faster |
GsTrEiNy |
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jason88eh
P Plater
37 Posts
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Mechknight73
National Driver
1001 Posts
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Posted - 30 Apr 2011 : 7:49:43 PM
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| The iron head V6 has one crucial advantage over the alloy headed Ecotec; strength. Yes, they're lighter, more fuel efficient and a little more powerful, but nothing that can't be fixed with some cam and head work, a good exhaust and the right diff ratio. The stock 3:08 isn't bad, but you do have some other options if you want them.Alloy heads are far more sensitive to overheating than iron heads, and they do tend to corrode a bit faster |
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VNGRPA
Fully Licenced
426 Posts
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Posted - 01 May 2011 : 5:46:46 PM
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| mate i have had head and cam work done on both engines both with exhaust systems and as for power wise i liked the buick rather then the ecotec only reasion ecotec is such a smoth running engine it feels like it take a while to get the gas to the engine and then only drops down 1 gear most of the time if your in a auto were the buick just drops down 2 gears and takes off like a bull out of a gate , |
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jason88eh
P Plater
37 Posts
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Posted - 01 May 2011 : 7:55:34 PM
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| Idea is a Stroker kit from Mace to 255ci, supercharger, head work, lifters, balance, hoping for about 350 to 400 hp, 6 speed manual or if it's too hard a 5 speed manual not a great fan of autos. 3.45 or taller LSD diff, upgrade brakes, all this in a granny spec 64 Eh that should weigh under 1200kg. I want the car for driving on the road still so don't want the car to rev at 4000 rpm at 100km/h. What will the rpm be at 100 with 3.45 and 3.7 diff gears. |
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Mechknight73
National Driver
1001 Posts
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Posted - 03 May 2011 : 12:14:28 PM
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| The formula for working out speed is engine rpm, divided by gearbox ratio, divided by diff ratio. To figure out the revs, you reverse the formula |
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jason88eh
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37 Posts
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Mechknight73
National Driver
1001 Posts
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Posted - 05 May 2011 : 9:00:53 PM
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Yes it does. If the diameter is bigger or smaller than factory spec, this will affect the ratio. When doing the calculations, assume you have the factory spec profile.
This can be adjusted. For example, the stock tyre profile for a VN V6 Commodore Executive was 195/75 R14. 195mm wide, 75mm tall sidewall, on a 14 inch rim. On the VN S Pack, the profile was 205/65 R15. These two profiles side by side are exactly the same diameter.
It's not 100% accurate, but you could calculate by adding or subtracting a parcentage from the diameter of the tyre and wheel. Won't give you an exact RPM or km/h figure, but will give you a good idea of what to expect.
A word of warning: whatever profile you settle for, check the calibration of your speedo. Tyre diameter will affect the accuracy. |
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Weight of V6 V V8
