1.8T rods the same as 07K rods???

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1.8T rods the same as 07K rods???

Postby RPNJ82 » Mon Feb 12, 2018 8:39 pm

i was just wondering if the rods on 07k are same as 1.8ts???? the both are 144mm and the deck height is 220 for both engines...only question is the wrist pin size
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Re: 1.8T rods the same as 07K rods???

Postby vt10vt » Tue Feb 13, 2018 9:07 am

RPNJ82 wrote:i was just wondering if the rods on 07k are same as 1.8ts???? the both are 144mm and the deck height is 220 for both engines...only question is the wrist pin size

I've actually been looking at the same thing. I believe the answer is yes, they are the same, and also the same as the 2.0T rods. The difference is that the 2.0T used several different wrist pin sizes (20, 21 AND 22) and many of the aftermarket piston offerings use these larger wrist pins. I believe 07K pistons are all 20mm wrist pins, but N/A application means they're probably not as strong as the 2.0T stuff.

For my budget/requirements it's looking like early 2.0T factory pistons w/ 20mm wrist pins and a set of AAN/3B rods are the ticket for a stronger-than-stock but budget friendly internals setup.
-Shawn C.
2001 S4 6spd Avant blk/blk - stock daily
2002 01E B6 A4 Built FYF, Built 1.8T, HX35 ~330whp
1989 MC-1 200 Avant- MS1 -Gone but will never forget her lessons
1987 5ktq Sedan - Best $500 beater ever
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Re: 1.8T rods the same as 07K rods???

Postby alxdgr8 » Tue Feb 13, 2018 6:12 pm

Hank has been machining FSI pistons for lower compression for use in non-FSI budget builds...might be worth reaching out to him. He seems to think he could make some decent power on them, but hasn't found someone to want to test really test the limits of them...customers usually just opt for forged pistsons :)
-Alex- @vexartmedia on Instagram
1992 Porsche 968 (07K transplant in progress)
1983 Aud UrQ (20vt swap in progress)
1986 Audi Coupe GT (7A swap and more)
2003 Audi S8 (Avus/Oxblood; DD)
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Re: 1.8T rods the same as 07K rods???

Postby vt10vt » Tue Feb 13, 2018 8:43 pm

alxdgr8 wrote:Hank has been machining FSI pistons for lower compression for use in non-FSI budget builds...might be worth reaching out to him. He seems to think he could make some decent power on them, but hasn't found someone to want to test really test the limits of them...customers usually just opt for forged pistsons :)

Integrated Engineering lists the same rod for 1.8T and 2.0T: https://www.performancebyie.com/integra ... 8v-audi-vw

I think you'd have to use 1.8t rod bearings because the 144x20 rods all have tangs. I can't see how they would be any different between an 07K.

Assuming 07K and 2.0T heads have a similar volume, you could use VW CCTA or CBFA (maybe any/all VW 2.0Ts are the same comp ratio? I'm just learning the newer stuff...) pistons as they're already 9.6:1. Even the higher compression pistons (10.3-10.5 factory) would end up around 9.5:1 with stacked headgaskets... which isn't bad.
-Shawn C.
2001 S4 6spd Avant blk/blk - stock daily
2002 01E B6 A4 Built FYF, Built 1.8T, HX35 ~330whp
1989 MC-1 200 Avant- MS1 -Gone but will never forget her lessons
1987 5ktq Sedan - Best $500 beater ever
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Re: 1.8T rods the same as 07K rods???

Postby alxdgr8 » Tue Feb 13, 2018 9:45 pm

I think the FSI pistsons he was refering to were TTRS 07k, so 10:1 and then he'd machine them to around 9:1. Supposedly a better/stronger design over the plane N/A 07k piston. I think I meant to post this in the other thread since we're talking about rods here haha.
-Alex- @vexartmedia on Instagram
1992 Porsche 968 (07K transplant in progress)
1983 Aud UrQ (20vt swap in progress)
1986 Audi Coupe GT (7A swap and more)
2003 Audi S8 (Avus/Oxblood; DD)
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Re: 1.8T rods the same as 07K rods???

Postby vt10vt » Wed Feb 14, 2018 5:07 pm

alxdgr8 wrote:I think the FSI pistsons he was refering to were TTRS 07k, so 10:1 and then he'd machine them to around 9:1. Supposedly a better/stronger design over the plane N/A 07k piston. I think I meant to post this in the other thread since we're talking about rods here haha.

I get that TTRS pistons are probably better, but if 2.0T VW pistons are even just as strong as 1.8T ones, there's a 125hp/cyl (so like 600hp in a 5cyl config) drop in 9.6:1 piston right there. Same bore and stroke as 07k, unless the combustion chamber/valve angles/something are wayyyy more different 2.0-07k than I'm assuming I see no reason it wouldn't be an ideal option.
-Shawn C.
2001 S4 6spd Avant blk/blk - stock daily
2002 01E B6 A4 Built FYF, Built 1.8T, HX35 ~330whp
1989 MC-1 200 Avant- MS1 -Gone but will never forget her lessons
1987 5ktq Sedan - Best $500 beater ever
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Re: 1.8T rods the same as 07K rods???

Postby versacehobo » Mon May 21, 2018 8:34 am

Was there any more headway on whether the 2.0 pistons will work in an 07K application?
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Re: 1.8T rods the same as 07K rods???

Postby vt10vt » Mon May 21, 2018 7:09 pm

Give me a month or two and I should be able to verify, just need to wrap up a few projects before I start tearing into a new one.
-Shawn C.
2001 S4 6spd Avant blk/blk - stock daily
2002 01E B6 A4 Built FYF, Built 1.8T, HX35 ~330whp
1989 MC-1 200 Avant- MS1 -Gone but will never forget her lessons
1987 5ktq Sedan - Best $500 beater ever
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