RJM GTR Intake Lower Manifold...oh yes!

Elmo370z · 11-14-2016, 12:27 AM

Quote:

Originally Posted by Zbrah

Op- been waiting for some NA results...surely, it's installed by now. Where are the results, man?!

Didnt make power, sold it. Now he won't post about the subject anymore.

Rusty · 11-14-2016, 12:29 PM

Quote:

Originally Posted by Elmo370z

Didnt make power, sold it. Now he won't post about the subject anymore.

If that is what happened. He needs to come on here and say so. Then close the thread. Otherwise, people will be calling BS for a long time on him. Which is what I don't want to happen.

Spooler · 11-14-2016, 01:35 PM

Quote:

Originally Posted by Elmo370z

Didnt make power, sold it. Now he won't post about the subject anymore.

It would be nice to know for sure. If the only ones needing this upgrade are turbo cars pushing the HP up and increasing the boost to 25psi plus, it's all good.

Elmo370z · 11-14-2016, 02:19 PM

Quote:

Originally Posted by Spooler

It would be nice to know for sure. If the only ones needing this upgrade are turbo cars pushing the HP up and increasing the boost to 25psi plus, it's all good.

True. lot of single turbo guys are losing alot of top end power. My buddy twin set i think is the only one to make power with this conversion. ( None stroked vhr, moses and mike are stroked). He made 790whp.

Hotrodz · 11-14-2016, 03:50 PM

Hojo1078 made over 800whp at 30 psi with this setup. Most of what I know is that folks are having over heating issues with builds over 800 plus setups and I have only heard of one single turbo that reported losing power.

I think the learning curve on plus 800whp builds is still very steep. I don't believe there are that many and we keep hearing the same stories from different people with their twist.

Sent from my SM-N910P using Tapatalk

Elmo370z · 11-14-2016, 04:13 PM

I dunno, i talked to a guy at z nats who ran the same up at and lost 40whp up top, and seen a couple of guys here on the forum say the samething. There is a guy claiming he will make a,1000whp with a single, but won't post anything to back it up

Elmo370z · 11-14-2016, 04:19 PM

Heat issues come from stroking the motor. From what I've read

Elmo370z · 11-14-2016, 04:21 PM

Tt nismo hasn't ran into Any over heating issues but he is on E and running 300v 15 50 or 15 30

Rusty · 11-14-2016, 05:51 PM

Quote:

Originally Posted by Elmo370z

Heat issues come from stroking the motor. From what I've read

Also heard from someone who really knows his stuff. It's from running a closed deck. The closed deck supposing strengthens the top of the cylinder, but opens up another can of worms for cooling.

Hotrodz · 11-14-2016, 08:25 PM

Quote:

Originally Posted by Rusty

Also heard from someone who really knows his stuff. It's from running a closed deck. The closed deck supposing strengthens the top of the cylinder, but opens up another can of worms for cooling.

I really doesn't seem to matter closed deck or not as both setuups seem to have the same issue. I don't here of these issues with 700 or less horsepower. GTRs are closed from the factory and in theory there shouldn't be much of a difference.

Elmo370z · 11-15-2016, 12:04 AM

Quote:

Originally Posted by Rusty

Also heard from someone who really knows his stuff. It's from running a closed deck. The closed deck supposing strengthens the top of the cylinder, but opens up another can of worms for cooling.

SOOO many stories lol. My buddies 800whp Z had no over-heating issues while racing at road atlanta and no issues when running on full kill mode during mexico runs.

Elmo370z · 11-15-2016, 12:04 AM

Quote:

Originally Posted by Hotrodz

I really doesn't seem to matter closed deck or not as both setuups seem to have the same issue. I don't here of these issues with 700 or less horsepower. GTRs are closed from the factory and in theory there shouldn't be much of a difference.

ARe those issues with 3.7 block or stroker builds?

Rusty · 11-15-2016, 02:33 AM

Quote:

Originally Posted by Elmo370z

SOOO many stories lol. My buddies 800whp Z had no over-heating issues while racing at road atlanta and no issues when running on full kill mode during mexico runs.

You know the guy who told me this.

Hotrodz · 11-15-2016, 08:09 AM

Quote:

Originally Posted by Elmo370z

ARe those issues with 3.7 block or stroker builds?

Most are strokers as you have stated. I only know of a couple 3.7 blocks and a half dozen or so builds over 800whp. So if I am off by a half dozen then that still isn't that many. The cost is prohibitive for most to consider a build of this magnitude. Mike said he is done after this build.

bullitt5897 · 11-15-2016, 09:52 AM

ok let me clear some of this up... Since I have run stroker and non stroker.

Storker kits do generate more heat not a lot more but they do generate more heat due to a longer stroke.

There is no correlation between closed deck and open deck to heating issues. The closed deck while reinforcing the block does not hamper the cooling capabilities of the motor. All cooling channels remain intact and there is no obstruction.

However, a closed deck does allow the heat to transfer more easily to the outside of the block to dissipate. Now there are a few things people can do to help with that dissipation including thermal dispersal coating on the block, inter-cooler and intake tubes.

As most of you know the VVEL generates a good bit of heat and if you have taken VVEL apart you would see why. I know RJ MFG is looking into adding oil squirters in the heads to help with cooling but this is simply just in a testing phase at this point.

The Problem some people are seeing is a combination of elements leading to hotter than normal operating temperatures. Please remember when you are pushing a block past its recommended operating cycles you will face obstacles.

Items that will cause more heat in the block:
1. improper mix of coolant distilled water
2. Long Stroke (stroker kits)
3. VVEL
4. Large amounts of boost and no head work
5. Higher boost on lower octane
6. Inefficient turbo kits and hot IATs
7. Non Ceramic Coated or heat wrapped turbo manifolds
8. wrong headgaskets
9 wrong oil viscosity
10. not enough airflow to radiator
11. too small of an oil cooler.

These are just a few...

11-14-2016, 03:50 PM	#95 (permalink)
Hotrodz A True Z Fanatic Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684385	Hojo1078 made over 800whp at 30 psi with this setup. Most of what I know is that folks are having over heating issues with builds over 800 plus setups and I have only heard of one single turbo that reported losing power. I think the learning curve on plus 800whp builds is still very steep. I don't believe there are that many and we keep hearing the same stories from different people with their twist. Sent from my SM-N910P using Tapatalk Elmo370z likes this. __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

11-15-2016, 09:52 AM	#105 (permalink)
bullitt5897 Premium Member Join Date: Jan 2009 Location: North GA Posts: 6,831 Drives: Twin Turbo Z34 Rep Power: 3682	ok let me clear some of this up... Since I have run stroker and non stroker. Storker kits do generate more heat not a lot more but they do generate more heat due to a longer stroke. There is no correlation between closed deck and open deck to heating issues. The closed deck while reinforcing the block does not hamper the cooling capabilities of the motor. All cooling channels remain intact and there is no obstruction. However, a closed deck does allow the heat to transfer more easily to the outside of the block to dissipate. Now there are a few things people can do to help with that dissipation including thermal dispersal coating on the block, inter-cooler and intake tubes. As most of you know the VVEL generates a good bit of heat and if you have taken VVEL apart you would see why. I know RJ MFG is looking into adding oil squirters in the heads to help with cooling but this is simply just in a testing phase at this point. The Problem some people are seeing is a combination of elements leading to hotter than normal operating temperatures. Please remember when you are pushing a block past its recommended operating cycles you will face obstacles. Items that will cause more heat in the block: 1. improper mix of coolant distilled water 2. Long Stroke (stroker kits) 3. VVEL 4. Large amounts of boost and no head work 5. Higher boost on lower octane 6. Inefficient turbo kits and hot IATs 7. Non Ceramic Coated or heat wrapped turbo manifolds 8. wrong headgaskets 9 wrong oil viscosity 10. not enough airflow to radiator 11. too small of an oil cooler. These are just a few... Hotrodz and Elmo370z like this. __________________ *Shop Cars: 2013 318whp Nismo VspecII 370z SOLD, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054*

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11-14-2016, 04:13 PM	#96 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,709 Drives: 09 nissan 370z Sp M6 Rep Power: 295378	I dunno, i talked to a guy at z nats who ran the same up at and lost 40whp up top, and seen a couple of guys here on the forum say the samething. There is a guy claiming he will make a,1000whp with a single, but won't post anything to back it up

11-14-2016, 04:19 PM	#97 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,709 Drives: 09 nissan 370z Sp M6 Rep Power: 295378	Heat issues come from stroking the motor. From what I've read

11-14-2016, 04:21 PM	#98 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,709 Drives: 09 nissan 370z Sp M6 Rep Power: 295378	Tt nismo hasn't ran into Any over heating issues but he is on E and running 300v 15 50 or 15 30