Fully built/sleeved VQ pics..
06-04-2006, 02:56 PM
#23
What do you think of this idea ?
The 2 screw in plugs in the top of the cylinder head (the ones that are utilised in the head strengting mod) are directly above probably the hotest spots in the cylinder head.
There is uninterupted access above these to the cam covers.
Now a suitably designed threaded hollow pipe could be used to strengthen the head as well as allow for water outlets (inlets?) at a known hot spot.
The cam covers would need to be modified to allow the pipes through but that would not be to difficult, just need to be sealed for oil. ( something simmiler to the the spark plug tube sealing)
The external plumbing ? I havn't thought that far ahead.
The 2 screw in plugs in the top of the cylinder head (the ones that are utilised in the head strengting mod) are directly above probably the hotest spots in the cylinder head.
There is uninterupted access above these to the cam covers.
Now a suitably designed threaded hollow pipe could be used to strengthen the head as well as allow for water outlets (inlets?) at a known hot spot.
The cam covers would need to be modified to allow the pipes through but that would not be to difficult, just need to be sealed for oil. ( something simmiler to the the spark plug tube sealing)
The external plumbing ? I havn't thought that far ahead.
06-06-2006, 12:54 AM
#26
Registered User
Thread Starter
iTrader: (2)
Join Date: Oct 2005
Location: Houma, LA
Posts: 171
Likes: 0
Received 0 Likes
on
0 Posts
Higher coolant system pressure was one of the options that we're looking at. I am going to go ahead and order the L19 studs from Sharif (pronounced: Shareef.. 
), and that should definately help us out.
Travis
), and that should definately help us out. Travis
06-06-2006, 07:36 AM
#27
i chased all the coolant passages yesterday on the VQ35. the only possible problem i saw was the water inlet going into the block is kinda small and near the deck of the block in the front. flow then runs to the rear with very small steam passages in the gasket to the head. then the water transfers back to the head at the rear where it exits again. the water inlet for the head is essentually the same passage as feeding the block, then it to flows front to rear. i did find there is room to drill for a fitting at the rear of each head to vent or evacuate steam. might give it a shot, but not sure it would help much.
06-06-2006, 01:04 PM
#28
Registered User
Join Date: May 2006
Location: England
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
06-06-2006, 04:39 PM
#30
Originally Posted by overZealous1
i chased all the coolant passages yesterday on the VQ35. the only possible problem i saw was the water inlet going into the block is kinda small and near the deck of the block in the front. flow then runs to the rear with very small steam passages in the gasket to the head. then the water transfers back to the head at the rear where it exits again. the water inlet for the head is essentually the same passage as feeding the block, then it to flows front to rear. i did find there is room to drill for a fitting at the rear of each head to vent or evacuate steam. might give it a shot, but not sure it would help much.
06-06-2006, 10:53 PM
#31
Registered User
Join Date: May 2006
Location: England
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
Apparently the 3 litre DE-K had a seperate thermostat for the head and the VQ35 castings still have the passages for that, it may need some machining though. Also Nissan designed the heads to run warm for emmissions purposes I believe. Its a problem with the SR20 engine, except for one guy who reversed the flow through the block, he can never get his engine warm enough on the racetrack in the tropics.
Mike
Mike
06-07-2006, 07:36 AM
#32
Originally Posted by mchapman
Did you read Nathans post above regarding something similar to that coolant manifold you showed in that picture but using the same area as the head strengthening mod.
i am researching a full 3" core dual pass radiator right now. there is room (with the greddy ic atleast) for 3" thick push fans in front of the radiator pack which you could prolly stuff 2 16" fans there. then still a little room to do a couple thin 10"ers on the backside still too. this set up prolly wouldn't work for s/c but fine for most turbo kits. add a good oil cooler in there also, and i could not imagine anyone overheating a cooling system like that.
06-07-2006, 08:17 AM
#34
Registered User
iTrader: (4)
Join Date: Mar 2005
Location: EveryWhere & yet... NoWhere
Posts: 2,880
Likes: 0
Received 3 Likes
on
3 Posts
Originally Posted by Sharif@Forged
You guys are killing me! Hold on...dont drill/modify/tap anything yet. I am about to post about an OEM solution that does exactly what you are guys are describing, with parts that anyone can pick up from the Nissan dealer! 
Let us know when/where you post this solution.
--B
06-07-2006, 08:23 AM
#35
Originally Posted by BamBam
Sharif, been lurking on this thread for a bit. Lots of good info. I am looking forward to this potential solution. Do you think it would be a good idea for my beefy Greddy setup? My engine should be completed this week, they already have the 1/2" ARP studs installed & the ceramic coatings were just finished) and I would be interested in anything that will keep the block cooler.
Let us know when/where you post this solution.
--B
Let us know when/where you post this solution.
--B
06-07-2006, 09:33 PM
#36
Registered User
Thread Starter
iTrader: (2)
Join Date: Oct 2005
Location: Houma, LA
Posts: 171
Likes: 0
Received 0 Likes
on
0 Posts
Just wanted to give a big thanks to Sharif.. He's been really helpful with our VQ project.. I ordered a set of L19 studs from him at 5pm yesterday, and recieved them at 9am this morning. Excellent service, and great to deal with! Thanks again man..
Travis
Travis
06-08-2006, 06:34 AM
#37
Originally Posted by Trav4011
Just wanted to give a big thanks to Sharif.. He's been really helpful with our VQ project.. I ordered a set of L19 studs from him at 5pm yesterday, and recieved them at 9am this morning. Excellent service, and great to deal with! Thanks again man..
Travis
Travis
06-08-2006, 11:54 AM
#40
Registered User
Thread Starter
iTrader: (2)
Join Date: Oct 2005
Location: Houma, LA
Posts: 171
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Apex2986
LMAO! what a waste. no offense, badd *** set-up though