Bore size - What?
- VW MAN
- Major
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HI guys
Ok hav e afreind thats redoin the motor...
What i need to knw is what diff bores u get??
I knw u get 20tho, 40tho and 60tho...
Ok he is thinkin of bigger pistons and stuff...
if he had to go with 2.5 pistons, what size will bore be..??
if he had to go or make it 2.3...wht size will bore be??
dnt knw if i make sense
Pls help...
thnx
Ok hav e afreind thats redoin the motor...
What i need to knw is what diff bores u get??
I knw u get 20tho, 40tho and 60tho...
Ok he is thinkin of bigger pistons and stuff...
if he had to go with 2.5 pistons, what size will bore be..??
if he had to go or make it 2.3...wht size will bore be??
dnt knw if i make sense
Pls help...
thnx
Current
'14 Golf 7 GTI DSG White
'09 Jetta 5 2.0TSI DSG, T/Red, DP, LED Lighting, HID kit
EX:
'12 Golf 6 GTI DSG, CW - Stock
'08 Golf 5 GTI T/Red - Revo2, 216HP, 409NM
'01 Golf 4 GTI - Dimsport, Koni, Powerflow
'08 Golf 5 1.9TDI T/Red
'05 Polo Classic 1.6i (written Off)
'01 Citi Golf Chico 1.4i
'85 Golf 2 GTI - 92.2HP, 138NM - K.A.R
'98 Jetta CLI Exec Full House
'83 Golf Mk1 1300 LS (First car)
'14 Golf 7 GTI DSG White
'09 Jetta 5 2.0TSI DSG, T/Red, DP, LED Lighting, HID kit
EX:
'12 Golf 6 GTI DSG, CW - Stock
'08 Golf 5 GTI T/Red - Revo2, 216HP, 409NM
'01 Golf 4 GTI - Dimsport, Koni, Powerflow
'08 Golf 5 1.9TDI T/Red
'05 Polo Classic 1.6i (written Off)
'01 Citi Golf Chico 1.4i
'85 Golf 2 GTI - 92.2HP, 138NM - K.A.R
'98 Jetta CLI Exec Full House
'83 Golf Mk1 1300 LS (First car)
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- Cadet
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You are right!!
It Doesnt make sense!! :p :O
What motor?? what car?? capasity??
What is the current size of piston (diameter)
What is he reboring to , what else is he diong on the motor.
and im sure there is a couple of more questions to ask before you can get an answer to your question.
Vra Maar die Groot menere.
:laugh:
It Doesnt make sense!! :p :O
What motor?? what car?? capasity??
What is the current size of piston (diameter)
What is he reboring to , what else is he diong on the motor.
and im sure there is a couple of more questions to ask before you can get an answer to your question.
Vra Maar die Groot menere.
:laugh:
Nezaam
'98 2.0 Polo-R 8v
'88 1.3 Fox (Foxy Cleopatra) - Project Trackcar
'98 2.0 Polo-R 8v
'88 1.3 Fox (Foxy Cleopatra) - Project Trackcar
- panic-mechanic
- Panic's Place
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- Location: Benoni, putfontein.
Ok. The 20,40,60 Thou refers to thousands of an inch above the standard bore. So in metric terms 0.5, 1, 1,5 mm more than standard. So if his car was a stock Gti it would have been 81mm. So he can Have 81.5 mm and 82 mm. Then Stock 2l would be 82.5 mm and then you get 83mm, 83.5mm and 84mm. From there you can work out what you want.
The 2.5 combi piston is 82.5mm and the 2.3 is the same but the piston deck height is different on the 2.5 and 2.3 because of the different stroke those engines came with. If you use the 2.5 combi piston you will have to deck the block as the piston deck height is shorter than the Golf pistons.
The 2.5 combi piston is 82.5mm and the 2.3 is the same but the piston deck height is different on the 2.5 and 2.3 because of the different stroke those engines came with. If you use the 2.5 combi piston you will have to deck the block as the piston deck height is shorter than the Golf pistons.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
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- Lieutenant
- Posts: 1924
- Registered for: 21 years 7 months
- Car Make: BMW
- Car Model: M3
- Membership No: 1197
- Location: JHB
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- Lieutenant
- Posts: 1924
- Registered for: 21 years 7 months
- Car Make: BMW
- Car Model: M3
- Membership No: 1197
- Location: JHB
- VW MAN
- Major
- Posts: 3759
- Registered for: 21 years 7 months
- Car Make: VW
- Membership No: missing
- Location: Gauteng
hey no prob..
all we doin is makin a 1.6l much faster ...
as for deckin a head..cld sumn one pls tell me wht
tht means???
all we doin is makin a 1.6l much faster ...
as for deckin a head..cld sumn one pls tell me wht
tht means???
Current
'14 Golf 7 GTI DSG White
'09 Jetta 5 2.0TSI DSG, T/Red, DP, LED Lighting, HID kit
EX:
'12 Golf 6 GTI DSG, CW - Stock
'08 Golf 5 GTI T/Red - Revo2, 216HP, 409NM
'01 Golf 4 GTI - Dimsport, Koni, Powerflow
'08 Golf 5 1.9TDI T/Red
'05 Polo Classic 1.6i (written Off)
'01 Citi Golf Chico 1.4i
'85 Golf 2 GTI - 92.2HP, 138NM - K.A.R
'98 Jetta CLI Exec Full House
'83 Golf Mk1 1300 LS (First car)
'14 Golf 7 GTI DSG White
'09 Jetta 5 2.0TSI DSG, T/Red, DP, LED Lighting, HID kit
EX:
'12 Golf 6 GTI DSG, CW - Stock
'08 Golf 5 GTI T/Red - Revo2, 216HP, 409NM
'01 Golf 4 GTI - Dimsport, Koni, Powerflow
'08 Golf 5 1.9TDI T/Red
'05 Polo Classic 1.6i (written Off)
'01 Citi Golf Chico 1.4i
'85 Golf 2 GTI - 92.2HP, 138NM - K.A.R
'98 Jetta CLI Exec Full House
'83 Golf Mk1 1300 LS (First car)
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- Lieutenant
- Posts: 1924
- Registered for: 21 years 7 months
- Car Make: BMW
- Car Model: M3
- Membership No: 1197
- Location: JHB
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 7 months
- Membership No: 79
- Location: Benoni, putfontein.
Sigh - I can swear we have been over all these questions before. The 1.6 and 1.8 block is not the same - the one has 1.6 cast on the back and the other has 1.8 cast on the back. But for all practical considerations they are identical. Yes you can bore it to the right size - yes it takes the cranks - as a matter of fact the 1.4 block is the same as well - yes it will take any of the current series polo heads and even most of the old ones. The bolt and water and oil channels are all common - yes even the 16v head. The valve sizes in the 1.6 and 1.8 is the same - The head is common to the 1.4, 1.6 and 1.8. The TB sizes differ slightly.
As for the pistons. The 2.6 combi is also 82.5mm. the stroke differed so the piston height above the gudgeon pin is shorter. If you fit those then the piston sits under the level of the block. So now to get the compression ratio right you have to cut the block shorter to get the piston up to the level of the block again - that is called decking the block - not the head. NO VR6 pistons will not work becuase they have a slanted side to give the correct squish in the VR motor due to the fact that the flat head creates a slanted chamber.
As for the pistons. The 2.6 combi is also 82.5mm. the stroke differed so the piston height above the gudgeon pin is shorter. If you fit those then the piston sits under the level of the block. So now to get the compression ratio right you have to cut the block shorter to get the piston up to the level of the block again - that is called decking the block - not the head. NO VR6 pistons will not work becuase they have a slanted side to give the correct squish in the VR motor due to the fact that the flat head creates a slanted chamber.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 7 months
- Membership No: 79
- Location: Benoni, putfontein.
Yes it would. It's not such a big thing. Get the pistons or one that you intend using. Fit the crank conrod and piston. Turn it to tdc and see where it ends up under the block. The amount that it is recessed different to your old pistons is how much you need to cut. Remember that the block is now shorter so a vernier pulley will be neede to get you cam timing right. This is the REAL reason for fitting those things.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
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- Cadet
- Posts: 572
- Registered for: 21 years 8 months
- Location: JHB
- VW MAN
- Major
- Posts: 3759
- Registered for: 21 years 7 months
- Car Make: VW
- Membership No: missing
- Location: Gauteng
Thanks Stephan...
all cool now..
cheers!!
all cool now..
cheers!!
Current
'14 Golf 7 GTI DSG White
'09 Jetta 5 2.0TSI DSG, T/Red, DP, LED Lighting, HID kit
EX:
'12 Golf 6 GTI DSG, CW - Stock
'08 Golf 5 GTI T/Red - Revo2, 216HP, 409NM
'01 Golf 4 GTI - Dimsport, Koni, Powerflow
'08 Golf 5 1.9TDI T/Red
'05 Polo Classic 1.6i (written Off)
'01 Citi Golf Chico 1.4i
'85 Golf 2 GTI - 92.2HP, 138NM - K.A.R
'98 Jetta CLI Exec Full House
'83 Golf Mk1 1300 LS (First car)
'14 Golf 7 GTI DSG White
'09 Jetta 5 2.0TSI DSG, T/Red, DP, LED Lighting, HID kit
EX:
'12 Golf 6 GTI DSG, CW - Stock
'08 Golf 5 GTI T/Red - Revo2, 216HP, 409NM
'01 Golf 4 GTI - Dimsport, Koni, Powerflow
'08 Golf 5 1.9TDI T/Red
'05 Polo Classic 1.6i (written Off)
'01 Citi Golf Chico 1.4i
'85 Golf 2 GTI - 92.2HP, 138NM - K.A.R
'98 Jetta CLI Exec Full House
'83 Golf Mk1 1300 LS (First car)
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- Cadet
- Posts: 446
- Registered for: 21 years 7 months
- Location: Cape Town
- Contact:
While we are on the subject......the 3.1 conversion on the VR6......is it just oversized pistons? And if so which size? Also, would the standard head gasket still be adequate? How reliable is it. What is the best make of pistons, rings and bearings available locally? ???
1994 Onyx Jetta VR6
"Induction...is....sooooo....sweeeeeet"
"I may not be THAT fast but I sure as #### will make you furious"
"Induction...is....sooooo....sweeeeeet"
"I may not be THAT fast but I sure as #### will make you furious"
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 7 months
- Membership No: 79
- Location: Benoni, putfontein.
For the 3.1 that SAC does it's a cranshaft change - they increase the bore and the stroke(cost I believe is around R26000 +). BUT you can keep the std crank and get slightly over 2.9 L. You have to use some 84mm pistons. The standard head gasket does not work there and you have to get one where the compression ring is made bigger to suit the size of the bore. Best bearings would be KS - piston's I'm not allowed to tell and you can have Zabka do this for you for less than what SAC charge for the capacity conversion. I'm not sure what Tony charges but I've seen some strong VR's come out that shop. See the dyno day results - and that one I believe is still on a stock bottom end last I heard.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
-
- Cadet
- Posts: 446
- Registered for: 21 years 7 months
- Location: Cape Town
- Contact:
Thanks Stephan.
Unfortunately.....
There is no Zabka in Cape Town.....unless you guys can twist Tony's arm into opening a branch here like Golfwagen did.
Who stocks KS bearings? The best known brand of bearing down here is ACL stocked by Masterparts. You did not mention a preferred brand of rings or did you mean KS as well? Where would I buy a non-standard gasket? Is it better then to resleeve and stick with std pistons?
When do you plan on rebuilding the VR6 motor? I currently am on 209 000km that's why I am looking at rebuilding costs.
Thanks
Unfortunately.....
There is no Zabka in Cape Town.....unless you guys can twist Tony's arm into opening a branch here like Golfwagen did.
Who stocks KS bearings? The best known brand of bearing down here is ACL stocked by Masterparts. You did not mention a preferred brand of rings or did you mean KS as well? Where would I buy a non-standard gasket? Is it better then to resleeve and stick with std pistons?
When do you plan on rebuilding the VR6 motor? I currently am on 209 000km that's why I am looking at rebuilding costs.
Thanks
1994 Onyx Jetta VR6
"Induction...is....sooooo....sweeeeeet"
"I may not be THAT fast but I sure as #### will make you furious"
"Induction...is....sooooo....sweeeeeet"
"I may not be THAT fast but I sure as #### will make you furious"
JETTA 3 VR6 PISTON
Dear vwclub
I am looking for 2 new or used standard piston for a 2.8 VR6 engine with engine code AAA
If anyone has, please call me on 0795007274 for pricing
I am looking for 2 new or used standard piston for a 2.8 VR6 engine with engine code AAA
If anyone has, please call me on 0795007274 for pricing
- Donavan
- Lieutenant
- Posts: 1921
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- Location: Ruimsig
Re: Bore size - What?
16 year old thread revival
Maybe add your post in here
https://www.vwclub.co.za/forum/viewforum.php?f=18
Maybe add your post in here
https://www.vwclub.co.za/forum/viewforum.php?f=18
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