R3VLimited Forums

Go Back   R3VLimited Forums > E30 Technical Forums > Engine & Drivetrain > Forced Induction

Reply
 
Thread Tools Search this Thread
Old 12-17-2018, 07:37 PM   #1
Yuri
Member
 
Join Date: Aug 2017
Location: Minneapolis
Posts: 55
Cam sizing for a gt35

I found this company that makes custom cams for m20s and they seem extremely well priced. I just sent them a message regarding getting a regrind mimicking the vac cam. From what I gathered these were the cam specshttp://www.catcams.co.uk/acatalog/info_11.html


I was wondering what kind of cam sizing would work well for that large of a turbo. That being said ill probably set my redline relatively low because I have OEM springs...

Any feedback regarding cam sizing would be much appreciated.
Yuri is offline   Reply With Quote
Old 12-18-2018, 09:37 AM   #2
Yuri
Member
 
Join Date: Aug 2017
Location: Minneapolis
Posts: 55
Just an update these guys gave me a quote for $189 to regrind the above specs! They also hear treat it afterwards. So basically I can the same performance for $650 dollars cheaper. Am I living in a fairytale or did I just hit the jackpot?

This is the company I intend on using. I guess the question still remains... are these the best specs for this turbo size?

http://www.topendperformance.com/
Yuri is offline   Reply With Quote
Old 12-18-2018, 09:49 PM   #3
Yuri
Member
 
Join Date: Aug 2017
Location: Minneapolis
Posts: 55
Just pulled my cam, Iíll let you know how this goes! Turn around time is 2 weeks




Sent from my iPhone using Tapatalk
Yuri is offline   Reply With Quote
Old 12-18-2018, 10:26 PM   #4
ak-
R3V OG
 
ak-'s Avatar
 
Join Date: May 2009
Location: Hacienda Hts, CA
Posts: 12,406
Interested! Thanks for the info
__________________

1991 325iS turbo

ak- is offline   Reply With Quote
Old 01-08-2019, 08:56 PM   #5
Yuri
Member
 
Join Date: Aug 2017
Location: Minneapolis
Posts: 55
They just finished the cam yesterday and are shipping it back today. Total was $60 for shipping both ways and $185 for machine shop costs. Super knowledgeable guys, they seem to do a High rpm NA cam grind and the turbo grind. Iíll take a picture when I get it back. Also, if you donít want a regrind I think they do fresh cams for $325ish


Sent from my iPhone using Tapatalk
Yuri is offline   Reply With Quote
Old 01-11-2019, 07:26 PM   #6
digger
R3V Elite
 
Join Date: Nov 2005
Location: Sydney, Oz
Posts: 4,327
it would be more useful to install it in a head and plot it out the valve motion vs crank angle. all these companies offering m20 cams regrind or new cores and as a customer you have no idea of what youre actually going to get
__________________
89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...

new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

digger is online now   Reply With Quote
Old 01-14-2019, 09:45 AM   #7
Yuri
Member
 
Join Date: Aug 2017
Location: Minneapolis
Posts: 55
Just received the cam in the mail! Looks decent. The one thing I learned is that itís actually coated with something rather then reheated..

At the end of the day Iím happy I could near match other more expensive cams for much less money. If I have any further issues with the cam Iíll respond to this thread.

Customer service was awesome, took about 3 weeks to get it back. Enjoyable company to work with and it seems like they have some many a bmw m20 cam.

Cheers!







Sent from my iPhone using Tapatalk
Yuri is offline   Reply With Quote
Old 01-16-2019, 12:01 AM   #8
digger
R3V Elite
 
Join Date: Nov 2005
Location: Sydney, Oz
Posts: 4,327
What is it costed with ? Might just be parkerised
__________________
89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...

new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

digger is online now   Reply With Quote
Old 04-06-2019, 03:57 PM   #9
Yuri
Member
 
Join Date: Aug 2017
Location: Minneapolis
Posts: 55
Honestly I have no idea. If I were going to do this again I wouldnít get their regrind, but instead just get a custom one from them for like $350-$400


Sent from my iPhone using Tapatalk
Yuri is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 05:41 AM.


Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright 2004 - 2020 R3VLimited LLC