COMPLETE Coolant bypass mod - - Infiniti G35 & G37 Forum Discussion | rupromenergo.ru
Show Your Support Become A Premier Member

    > >
  • Reload this Page >
    • COMPLETE Coolant bypass mod


COMPLETE Coolant bypass mod

Thread Tools Rate Thread
Old 07-11-2010, 08:14 PM
Andrei's Avatar
Registered User
Thread Starter
iTrader: (12)
Join Date: Jan 2008
location: Lawrenceville, GA
Posts: 2,771
Thanked 19 Times in 16 Posts
COMPLETE Coolant bypass mod

This is the DM2 coolant bypass mod. http://rupromenergo.ru/forums/engine-...coolant+bypass I bought spare hardpipes and I cut them and [email protected] welded them shut. This deletes a bunch of coolant hoses that are there to improve emissions. This reduces clutter and also improves cooling to reduce heat soaking.

I will install this when I get 3 new gaskets. 2 for the heads and one for the driverside hardpipe.



















































Last edited by Andrei; 07-26-2010 at 03:53 AM.
Old 07-11-2010, 08:36 PM
Former rupromenergo.ru Vendor
iTrader: (32)
Join Date: Jan 2008
location: Vegas
Posts: 3,684
Thanks: 0
Thanked 19 Times in 13 Posts
I can't tell by the pictures exactly which coolant lines this is going to be removing. You don't think you can be more specific can ya?
Old 07-11-2010, 08:40 PM
Andrei's Avatar
Registered User
Thread Starter
iTrader: (12)
Join Date: Jan 2008
location: Lawrenceville, GA
Posts: 2,771
Thanked 19 Times in 16 Posts
Yes. I will take better pics. The DM2 thread has better pics BTW.
Old 07-11-2010, 09:00 PM
Andrei's Avatar
Registered User
Thread Starter
iTrader: (12)
Join Date: Jan 2008
location: Lawrenceville, GA
Posts: 2,771
Thanked 19 Times in 16 Posts
Ok here are some better pics maybe.










Old 07-11-2010, 11:05 PM
GreenGoblin's Avatar
The goblin resurrection
iTrader: (66)
Join Date: Oct 2006
location: In my garage
Posts: 25,862
Thanked 184 Times in 92 Posts
I would redo your rear cross over area. You threaded a pressed in tube, I would drill that out and retap for a npt plug, or just weld it shut.
Old 07-11-2010, 11:17 PM
Registered User
iTrader: (69)
Join Date: Feb 2006
location: Fort Lauderdale
Posts: 4,574
Thanks: 0
Thanked 3 Times in 3 Posts
As Danny mentioned, check out the 1st post on the link below. It shows the npt plug on my rear section.

http://rupromenergo.ru/forums/picture...pass-more.html
Old 07-11-2010, 11:19 PM
Registered User
iTrader: (69)
Join Date: Feb 2006
location: Fort Lauderdale
Posts: 4,574
Thanks: 0
Thanked 3 Times in 3 Posts
There's also another good pic of it in post #4.
Old 07-14-2010, 12:27 PM
Andrei's Avatar
Registered User
Thread Starter
iTrader: (12)
Join Date: Jan 2008
location: Lawrenceville, GA
Posts: 2,771
Thanked 19 Times in 16 Posts
The gaskets I ordered are on back order. I also bought the VQ35HR T-stat housing, HR oil filter stud to remove the oil warmer. The only emission related thing on the car that will be left is the open deck.

1 x [21200] THERMOSTAT ASSY - 350Z (Z33) 2007+ HR (21200-Z33002) = $19.86
2 x [13050N] GASKET-WATER INLET - 350Z (Z33) 2003-2006 (13050-Z33001) = $3.92
1 x [15213] STUD-OIL FILTER - 350Z (Z33) 2003-2008 (15213-Z33001) = $6.83
1 x [13050P] GASKET-WATER INLET - 350Z (Z33) 2003-2008 (13050-Z33003) = $3.58
2 x [13264A] BOLT-ROCKER COVER - 350Z (Z33) 2003-2006, 2007+ HR (13224-Z33003) = $7.20
2 x [11062] GASKET-WATER OUTLET - 350Z (Z33) 2003-2008 (11062-Z33001) = $5.04
------------------------------------------------------
Sub-Total: $46.43
United Parcel Service (UPS Ground): $9.85
Total: $56.28
Old 07-20-2010, 04:26 PM
Andrei's Avatar
Registered User
Thread Starter
iTrader: (12)
Join Date: Jan 2008
location: Lawrenceville, GA
Posts: 2,771
Thanked 19 Times in 16 Posts
Here are pics of the everything needed to remove the oil warmer. I need an air gun to take off the hard lines from the warmer.







Old 07-24-2010, 08:15 PM
Andrei's Avatar
Registered User
Thread Starter
iTrader: (12)
Join Date: Jan 2008
location: Lawrenceville, GA
Posts: 2,771
Thanked 19 Times in 16 Posts
Today I made some changes to the rear pipe. It's all complete now and I will install it tomorrow maybe. The tapping bit is an M10 standard so I had to use standard bolts instead of metric which I already had. I also bought gold ones because it was the only complete set of 3 and the silver ones had only 2 bolts per box.

























Old 07-25-2010, 12:40 AM
rpm06g35's Avatar
Registered User
iTrader: (20)
Join Date: Jun 2006
Posts: 1,629
Thanks: 0
Thanked 3 Times in 3 Posts
Damn bro. The past posts we have put up explain alot of things you are doing wrong here. The plugs in the back are npt fittings which means they wedge into seat the fitting. We made the first 3 side pipe sets by welding the holes shut like you did. Only one set didnt leak. Our guaranteed route was the plate set up (with pressure test). Let me know and please pm me if you need help.

Last edited by rpm06g35; 07-25-2010 at 12:42 AM. Reason: redo
Old 07-25-2010, 01:00 AM
Andrei's Avatar
Registered User
Thread Starter
iTrader: (12)
Join Date: Jan 2008
location: Lawrenceville, GA
Posts: 2,771
Thanked 19 Times in 16 Posts
If that sensor next to the bolts I used does not leak there is no reason why the bolts should. I'm going to install it as is.
Old 07-25-2010, 01:05 AM
rpm06g35's Avatar
Registered User
iTrader: (20)
Join Date: Jun 2006
Posts: 1,629
Thanks: 0
Thanked 3 Times in 3 Posts
those are taper seats on the sensors.Plus both of them have copper crush washers.

Last edited by rpm06g35; 07-25-2010 at 01:09 AM. Reason: forgot
Old 07-25-2010, 09:53 PM
Andrei's Avatar
Registered User
Thread Starter
iTrader: (12)
Join Date: Jan 2008
location: Lawrenceville, GA
Posts: 2,771
Thanked 19 Times in 16 Posts
You're right. I took out the sensor just to take a peek.

I took off the sealant tape and used liquid thread sealant on the bolts. Should hold. I didn't have time today to install it plus it was hot as hell outside but maybe tomorrow morning I'll begin.

Last edited by Andrei; 07-25-2010 at 10:02 PM.
Old 07-27-2010, 12:37 PM
Registered User
iTrader: (12)
Join Date: Mar 2010
location: Seneca, SC
Posts: 661
Thanked 105 Times in 74 Posts
I've just completed this mod also and used 1/8 pipe plugs for the rear pipe. relocated the heater supply fitting to the rear pipe to completely eliminate all the fittings on passenger pipe except for radiator hose.

Another method to remove pipe nipples because thier pressed in is to place them in vise and gently back them out by rotating pipe.

Not mentioned if you don't have an HR motor the thermostat housing needs to be modified or purchase the HR thermostat for a DE or Rev Up application.

Before welding on used coolant pipes thoroughly clean them and heat up the weld area to eliminate contamination otherwise you may experience pin hole size leaks.

Related Topics
Thread Thread Starter Forum Replies Last Post
Alignment advise needed migurus G35 Coupe V35 2003 - 07 3 09-05-2015 10:39 PM
P1239 Faulty Electric Throttle Control Actuator Freeman186 Engine, Drivetrain & Forced-Induction 0 09-05-2015 12:28 AM
2003 G35 4 Door Sedan Door Seals jbmw002 G35 Sedan V35 2003-06 2 09-03-2015 09:42 PM
G35 to g37 akebono conversion INVADER_6MT Brakes & Suspension 0 09-03-2015 02:47 AM
Car Died on Highway, Now Wont Start. Broken Flywheel? magnetism80 G35 Coupe V35 2003 - 07 2 09-02-2015 02:08 PM


Tags
350z, assembly, bypass, change, coolant, coolent, g35, gasket, inlet, number, rear, sensor, thermostat, upgrade, water
Thread Tools
Rate This Thread
Rate This Thread:

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 10:23 PM.


Copyright ©2002 - 2017, rupromenergo.ru All Rights Reserved. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in:

Related pages


2004 g35 for salecold air blows when heater is onsupercharger versus turbochargerxm nav trafficwork meister s2nissan gtr v spec for saleengine knocksseafoam vs lucasyokohama yk520 pricesglobal guts halloween costumenissan crush washer350z titanium shift knobprevent car door dingse30 xxrpics of athenapioneer avic d3 navigation disc free downloadmarsh road milpitascommcenter insightbbwheel refinishing vancouverturtle wax headlight lens restorer kit reviewcleaning engine bay simple greeninfiniti orange countyhow does vvt workcastrol edge syntecnissan murano oil leakbruin bashs2000 vs g35greddy twin turbo 350znissan 350z stud patternleaking differentialw505where can i get my car inspected in njoptima red top vs yellowtsunami amp kitrecalls and tsbtimken torque specsbronze te37bmw vs lexus maintenancemaf cleaner canadian tirework vs xx rimsg35 service engine soon1010tiregloss black vinyl roof wrapintake control solenoid valve370z nismo wheelscode po304can i get full coverage on a rebuilt titlekicker l7 10 for salelow profile car rampsjl 12w6v2 d4aggressive stance wheelsfind xm radio idsupercharger for 350z2006 infiniti i35antix oakley polarizedhow to remove air from coolant systemrc10 forumlexani n3000smolich nissaninfiniti replacement keyweds mavericktwin turbo 350z kitjwt ecuhow to change a shift bootsmoke coming out of exhaust when acceleratingxterra nismo exhaustllumar air 80 windshieldaftermarket hid2003 nissan altima throttle bodyhow do i reset my viper car alarmobd2 code 128350z snow tires2009 acura tl sh awd 0 60ripped cv boot2003 nissan altima spark plugsp0327 knock sensor