MK5 Golf GTI

All Things Mk5 => Modifications & Technical Area => Performance Modifications => Topic started by: Stooey on August 04, 2015, 06:53:36 pm

Title: r-tech pcv delete or catch can???
Post by: Stooey on August 04, 2015, 06:53:36 pm
I'm looking either fit a catch can on do a pcv delete but I'm unsure which is better? What are the pros and cons for each? I'm guessing the r-tech delete will be better as they know there stuff but just after finding out a bit more if anybody has any info.

Cheers
Title: Re: r-tech pcv delete or catch can???
Post by: th3_f15t on August 04, 2015, 09:25:18 pm
I've seen a lot of mixed views on this. A catch can is probably my choice, as deletes can cause excess pressure inside the engine. plus a catch can filters some stuff from passing through the engine.

Thing is you need to get a well designed catch can to make it worth while, think the Draft 42 Designs one was mentioned as a good one in the apst but don't quote me.
Title: Re: r-tech pcv delete or catch can???
Post by: Dan_FR on August 04, 2015, 09:31:18 pm
The catch cans are no better than the deletes, all (aside from the R-Tech setup) reduce the breathing capacity of the engine (both cam and crank) down to a 19mm hole (or less), which does cause excessive pressure and leads to smoking on overrun/idle.

The R-Tech kit runs a separate large bore breather for the cam and crank gases. No back pressure, no hot oil vapors making their way back in to the turbo intake etc.

Get the R-Tech kit - Cheaper than a decent catch can setup and does a better job
Title: Re: r-tech pcv delete or catch can???
Post by: th3_f15t on August 04, 2015, 09:37:33 pm
I may consider that myself actually, thanks for that.
Title: Re: r-tech pcv delete or catch can???
Post by: Stooey on August 04, 2015, 09:40:33 pm
Thanks for the reply lads, think the r-tech delete is the way to go then  :drinking:
Title: Re: r-tech pcv delete or catch can???
Post by: rich83 on April 02, 2019, 05:13:54 pm
Looks like R-tech have stopped selling this now  :confused:
Title: Re: r-tech pcv delete or catch can???
Post by: v4rley on April 02, 2019, 05:45:43 pm
Yes they have, but apparently AKS have started to make / develop this own now  :confused:
Title: Re: r-tech pcv delete or catch can???
Post by: rich83 on April 02, 2019, 06:01:14 pm
Wonder why they stopped making them?

I've just opted to replace the front and rear PCV with new OEM ones. The rear PCV is original so on 128k miles.  :scared:
Title: Re: r-tech pcv delete or catch can???
Post by: Dan_FR on April 03, 2019, 08:52:29 am
Because PCV deletes causes issues with crankcase pressure and burning oil/smoke. Mine was OK at first but started with age/time. I'm now back on the factory PCV and will be keeping it that way
Title: Re: r-tech pcv delete or catch can???
Post by: rich83 on April 03, 2019, 09:28:35 am
Quote from: Dan_FR on April 03, 2019, 08:52:29 am
Because PCV deletes causes issues with crankcase pressure and burning oil/smoke. Mine was OK at first but started with age/time. I'm now back on the factory PCV and will be keeping it that way

Thought so. Thanks dan.
Title: Re: r-tech pcv delete or catch can???
Post by: rich83 on April 03, 2019, 02:07:31 pm
Went to pick the stuff up today and the rear pcv doesn’t have s valve in it. Just a flexi metal hose and short rubber hose that attaches to the cam cover. Is that right?

Thought it had a valve in it.
Title: Re: r-tech pcv delete or catch can???
Post by: Dan_FR on April 03, 2019, 08:59:21 pm
As long as you don't have a P revision front PCV, then it doesn't need a checkvalve. I'm currently using an N and the latest is R - both are fine without a checkvalve in the rear pipe
Title: Re: r-tech pcv delete or catch can???
Post by: rich83 on April 04, 2019, 11:20:38 am
Quote from: Dan_FR on April 03, 2019, 08:59:21 pm
As long as you don't have a P revision front PCV, then it doesn't need a checkvalve. I'm currently using an N and the latest is R - both are fine without a checkvalve in the rear pipe

Lovely. Thanks agains. I’ll replace the pipe anyway as I am stripping it.