Fully Forged Internals

[USA]

I have been reading and researching this group. But cannot find a straight answer. Is out stock (2017 Golf R) fully forged? I saw a member of another group state that it is.

 

[Gawernator]

For sure the crank is

 

[USA]

For sure the crank is

Yes most cars are. Would be nice if the rods and pistons were. If not I need to add this to my list.

 

[The Fed]

From what I remember (right or wrong), the crank is forged, the pistons are cast, and the rods are forged but not as strong as aftermarket ones.

 

[Gawernator]

Yes most cars are. Would be nice if the rods and pistons were. If not I need to add this to my list.

Are you aiming for over 450 WHP?


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[USA]

From what I remember (right or wrong), the crank is forged, the pistons are cast, and the rods are forged but not as strong as aftermarket ones.

Thank you.

Are you aiming for over 450 WHP?


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Yes. I am looking at a CTS kit. Not sure where the $$ and power will end up. But I want the best kit and do this 1 time. So the limit is 450 WHP?

 

[Gawernator]

Thank you.

Yes. I am looking at a CTS kit. Not sure where the $$ and power will end up. But I want the best kit and do this 1 time. So the limit is 450 WHP?

no not at all, I just don't think you'll even need to build the motor for that power level on the R. But if you have the means why not. Heck shoot for 600.

 

[greggles]

Pistons appear to be the weak point in the bottom end. Generally when an engine goes (outside of a turbo problem), it generally shows up as piston related (hole in the piston most common).

Note: When I say common, I mean in terms of destroyed tuned cars making heaps of power. (That is a tiny population).

 

[Sir_Mk7r]

From what I have gathered it is tq that is killer for our R's. seems that the magic number is 420 ftlbs. Anything close to or over this number needs to be replaced with aftermarket rods and all. Also, look into fueling. Spark knock will tear up your piston heads.

 

[USA]

Pistons appear to be the weak point in the bottom end. Generally when an engine goes (outside of a turbo problem), it generally shows up as piston related (hole in the piston most common).

Note: When I say common, I mean in terms of destroyed tuned cars making heaps of power. (That is a tiny population).

Thanks for the heads up.

From what I have gathered it is tq that is killer for our R's. seems that the magic number is 420 ftlbs. Anything close to or over this number needs to be replaced with aftermarket rods and all. Also, look into fueling. Spark knock will tear up your piston heads.

Am wondering where a Stage 2 from APR would put me on 93 octane.

 

[Gawernator]

Thanks for the heads up.

Am wondering where a Stage 2 from APR would put me on 93 octane.

354 WHP/387 TQ http://www.goapr.com/products/ecu_upgrade_20tsi_gen3_mqb_r.html

 

[Sir_Mk7r]

Thanks for the heads up.

Am wondering where a Stage 2 from APR would put me on 93 octane.

its really the stage 3+ that requires internals. Stage 2 should be safe for stock

 

[Gawernator]

its really the stage 3+ that requires internals. Stage 2 should be safe for stock

He wants a Stage 3+ kit it sounds like. 500+ WHP

 

[breaking badly]

From what I have gathered it is tq that is killer for our R's. seems that the magic number is 420 ftlbs. Anything close to or over this number needs to be replaced with aftermarket rods and all. Also, look into fueling. Spark knock will tear up your piston heads.

Fueling is a good point. Ethanol kills pistons (and rods sometimes).
Ethanol burns with a much sharper pressure peak compared to gasoline.

Remember more power makes increased temperatures. Higher temperatures
at the same time mean a loss of strength of the piston's alloy.

 

[Crud_muffin]

Ethanol kills pistons (and rods sometimes). Ethanol burns with a much sharper pressure peak compared to gasoline.

Interesting. Can you share the source?