“Flex Your Bottom Mount Setup” Thread - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

pacotaco345 · 08-21-2018, 11:06 AM

Shoot me if something like this already exists, but I’ve seen a GTX thread, a 2871r thread, I think an EFR thread somewhere, but this is for all that bottom mount, t25, “stock looking” 4 cyl goodness.

Really I just want to brag. Last Sunday My SR made 492 whp on a dynapack at 19 psi with the following mods:

CP 9.5:1 comp
Eagle rods
Tomei 256 poncams
Tomei expreme manifold
Custom 3” exhaust
CX fmic
EFR 6758
ID1050x
Walbro 485 @ 55 psi base fuel pressure
PowerFC D jetro
Oh, and e85

I had to do a handfull of stuff to get the efr to fit bottom-mount, like clearance a part of the block with a die grinder, but aside from that it wasn’t anything too groundbreaking. Also it will easily break 500 if I had a better fuel setup. Onto some pictures! The dyno graph shows wastegate (12 psi), low boost (14 psi), medium boost (17 psi), and high boost (19 psi).

Sent from my iPhone using Tapatalk

slider2828 · 08-21-2018, 11:35 AM

When I dynoed mine on Dynodynamics (similar to mustang)

CP 8.5:1 comp
Eagle rods
HKS 264 Step 1
Stock Intake and Exhaust
Blitz Nurspec
Blitz FMIC
GT2871R .86
Nismo 740cc
Walbro 255 @ 43 psi base fuel pressure
PowerFC D jetro
Cali Piss 91

360 WHP @ 5500..... Nothing spectacular.

KiDyNomiTe · 08-21-2018, 12:28 PM

When I was 2.2L SR
GTX2863
Poncams
ebay manifold modded for EWG, hopefully going to get a better manifold, finding good options is terribly difficult
Tial MVS
19 psi

398/390

RalliartRsX · 08-21-2018, 12:37 PM

Quote:

Originally Posted by pacotaco345

Shoot me if something like this already exists, but I’ve seen a GTX thread, a 2871r thread, I think an EFR thread somewhere, but this is for all that bottom mount, t25, “stock looking” 4 cyl goodness.

So YOU'RE the one who grenade 3rd gear on first drive!! Juan says hi

P.S
I did this install a few years ago. Have since moved on to bigger and better things

How-to/tutorial: Installation of EFR 6258, 6758 and 7163 on SR20DET

Made 300WHP on 12 psi with zero timing added. Essentially a cleaned up base map. Thing was a riot!
6758
Stock manifold
3"
Nismotronic
Decapped 850 side feed
Basic setup.

derass · 08-21-2018, 02:46 PM

damn. impressive. 492 whp is probably the highest I've ever seen from 2.0 L bottom mount SR.

425 whp was about the highest I'd seen before. I think your extra 70 whp came from the E85. And maybe some EFR efficiency.

bardabe · 08-21-2018, 03:41 PM

Quote:

Originally Posted by RalliartRsX

So YOU'RE the one who grenade 3rd gear on first drive!! Juan says hi

P.S
I did this install a few years ago. Have since moved on to bigger and better things

How-to/tutorial: Installation of EFR 6258, 6758 and 7163 on SR20DET

Made 300WHP on 12 psi with zero timing added. Essentially a cleaned up base map. Thing was a riot!
6758
Stock manifold
3"
Nismotronic
Decapped 850 side feed
Basic setup.

haha I seriously thought he missed a gear until he rolled past me and I heard all the crunchy not healthy noises. I'll have some video footage shortly.

slider2828 · 08-21-2018, 03:45 PM

Wait all you guys live in the same area?

zach3904 · 08-21-2018, 03:58 PM

Textbook low power KA-T setup. Kinda ghetto in spots, but it's been good to me.

T25 (bump to T28 soon)
SR injectors
Z32 MAF
Stock internals
RS Enthalpy OTS tune
CodyAce manifold
PBM mid mount intercooler
PBM cobra DP

jumpman2334 · 08-21-2018, 04:26 PM

do you guys not have to run scavenge pumps for the oil return on these setups?

RalliartRsX · 08-21-2018, 05:22 PM

Does a stock SR20 run a scavenge pump? Why would anyone need to run one jumpman?

xpinoyxmk · 08-21-2018, 05:26 PM

Awesome numbers paco!

Aiming for a similar setup but with a ve head. I know its not needed but i got it for cheap and it should be more reliable.

jumpman2334 · 08-21-2018, 05:39 PM

Quote:

Originally Posted by RalliartRsX

Does a stock SR20 run a scavenge pump? Why would anyone need to run one jumpman?

i have no idea, I don't own a 240 or a SR; that is why I am asking. Ive always figured that you would be fine due to the oil constantly pushing it out of the CHRA and as long as its not below the pan, gravity should take over.

HOWEVER, I have seen plenty of guys run scavenge pumps on bottom mount setups that were still above the pan; some even going as far to say it was an 'absolute must'. I think they were playing it safe. just curious.

derass · 08-21-2018, 07:26 PM

A Nissan bottom mount turbo setup doesn't put the turbo under the engine or anything.

The turbo is still half-way up the engine, and the oil drains into the block above the oil pan. So gravity just does it's thing.

Bottom mount:

Top mount:

feito · 08-21-2018, 07:39 PM

Quote:

Originally Posted by jumpman2334

do you guys not have to run scavenge pumps for the oil return on these setups?

fwiw, I ran this setup on one of my mr2's for a few months without any smoking or oil issues. As you can see, that was really low. The drain fitting on the turbo was just above the oil pan.
Tried looking for a better picture but it seems photobucket has stoled all of our pictures for ransom...

pacotaco345 · 08-21-2018, 10:10 PM

Wow haha this thread actually got some traffic.. I think it's awesome to see everybody's setups floating around here, and I think its exciting that just 5-10 years ago you had to go top mount to make big power with a relatively small displacement 4 cyl. Injectors, engine management, turbos, coatings, fuels, tuning, etc have all leapfrogged so quickly recently I wanted to see what kind of power a motor would make using an old recipe with modern components.

Quote:

Originally Posted by KiDyNomiTe

When I was 2.2L SR

What do you have now? I was under the impression that you've had the same motor since forever haha.

Quote:

Originally Posted by RalliartRsX

So YOU'RE the one who grenade 3rd gear on first drive!!

I am! Haha, I actually stole a bunch of ideas from your thread.

Quote:

Originally Posted by derass

damn. impressive. 492 whp is probably the highest I've ever seen from 2.0 L bottom mount SR.

425 whp was about the highest I'd seen before. I think your extra 70 whp came from the E85. And maybe some EFR efficiency.

Thanks! Yeah I'm sure a huge amount came from the E85. My last setup was an s15 turbo on 18 psi tuned on 91, and while it (320 wheel) was quick, its a night and day difference between that setup and my current one.

Quote:

Originally Posted by slider2828

Wait all you guys live in the same area?

SoCal-ish.. I'm actually moving up to the bay area in January

Quote:

Originally Posted by zach3904

Textbook low power KA-T setup. Kinda ghetto in spots, but it's been good to me.

If it works! I've always loved well set-up KA-Ts, but ever since going SR I haven't been able to convince myself to go back.

Quote:

Originally Posted by jumpman2334

do you guys not have to run scavenge pumps for the oil return on these setups?

No scavenge pump here, I'm sure on a massive turbo that requires an insane amount of oil feed it might be needed, but with only a -3 or -4 feed there's not too much volume to get backed up. My oil drain is weeping a little bit though.

slider2828 · 08-21-2018, 11:42 PM

cool pacotaco! do you know if you east bay or peninsula? Its expensive AF up here... Come by for a beer and check out my build... when you got time

***FaLKoN240*** · 08-22-2018, 09:44 AM

Quote:

Originally Posted by slider2828

cool pacotaco! do you know if you east bay or peninsula? Its expensive AF up here... Come by for a beer and check out my build... when you got time

He lives in Socal

pacotaco345 · 08-22-2018, 10:15 AM

Quote:

Originally Posted by slider2828

cool pacotaco! do you know if you east bay or peninsula? Its expensive AF up here... Come by for a beer and check out my build... when you got time

Quote:

Originally Posted by FaLKoN240

He lives in Socal

I got an assignment at Travis AFB, so I’m trying to find a place in Concord [emoji846]

Sent from my iPhone using Tapatalk

slider2828 · 08-22-2018, 10:18 AM

Quote:

Originally Posted by pacotaco345

I got an assignment at Travis AFB, so I’m trying to find a place in Concord [emoji846]

Sent from my iPhone using Tapatalk

Oh you in the AF.... I had a few friends out there at the base.... Vacaville isn't bad its pretty nice actually.... Dude you are like 40 minutes from Thunderhill. Its one of the premier tracks for drift and time attack.

bardabe · 08-22-2018, 10:30 AM

Quote:

Originally Posted by slider2828

Oh you in the AF.... I had a few friends out there at the base.... Vacaville isn't bad its pretty nice actually.... Dude you are like 40 minutes from Thunderhill. Its one of the premier tracks for drift and time attack.

He's currently 5 minutes from willow springs if he stops at all the lights and stop signs.

RalliartRsX · 08-22-2018, 10:47 AM

^^ Yeah, that's too far......

***FaLKoN240*** · 08-22-2018, 10:55 AM

Quote:

Originally Posted by pacotaco345

I got an assignment at Travis AFB, so I’m trying to find a place in Concord [emoji846]

Sent from my iPhone using Tapatalk

You bouta be a local.

KiDyNomiTe · 08-22-2018, 01:10 PM

Quote:

Originally Posted by pacotaco345

What do you have now? I was under the impression that you've had the same motor since forever haha.

Just a regular 2.0 S14 motor for the time being. It makes 380/370 (I think).

zach3904 · 08-22-2018, 05:37 PM

Quote:

Originally Posted by pacotaco345

If it works! I've always loved well set-up KA-Ts, but ever since going SR I haven't been able to convince myself to go back.

4 years strong! If/when this motor lets go, an SR will definitely be on the list. Grats on those numbers. That's insane for a bottom mount haha.

dev893 · 08-22-2018, 06:02 PM

is a stock manifold considered bottom mount?

dev893 · 08-22-2018, 06:04 PM

Quote:

Originally Posted by slider2828

When I dynoed mine on Dynodynamics (similar to mustang)

CP 8.5:1 comp
Eagle rods
HKS 264 Step 1
Stock Intake and Exhaust
Blitz Nurspec
Blitz FMIC
GT2871R .86
Nismo 740cc
Walbro 255 @ 43 psi base fuel pressure
PowerFC D jetro
Cali Piss 91

360 WHP @ 5500..... Nothing spectacular.

sounds like a decen set up, may of overlooked it how much boost?

slider2828 · 08-23-2018, 02:25 PM

Was running 17PSI.... needed it for more track duty so didn't want to run it 21 PSI which is closer to its sweet spot....

Then blew the motor cause of a coolant leak under the intake manifold..... Now went freddy to clean that up.

slider2828 · 08-23-2018, 03:05 PM

@paco, do the ATI dampers make that big of a difference? When should you add it?

Been debating for a long time.

Thanks for your insight.

Dboyizmlg · 08-23-2018, 07:50 PM

Was that Juan tuning your car?

RalliartRsX · 08-23-2018, 08:18 PM

^^^^^^^ Yep

08-21-2018, 11:06 AM	#1
pacotaco345 Zilvia FREAK! Join Date: Jan 2010 Location: SoCal/Ft Worth TX Age: 30 Posts: 1,563 Trader Rating: (5) Feedback Score: 5 reviews	“Flex Your Bottom Mount Setup” Thread Shoot me if something like this already exists, but I’ve seen a GTX thread, a 2871r thread, I think an EFR thread somewhere, but this is for all that bottom mount, t25, “stock looking” 4 cyl goodness. Really I just want to brag. Last Sunday My SR made 492 whp on a dynapack at 19 psi with the following mods: CP 9.5:1 comp Eagle rods Tomei 256 poncams Tomei expreme manifold Custom 3” exhaust CX fmic EFR 6758 ID1050x Walbro 485 @ 55 psi base fuel pressure PowerFC D jetro Oh, and e85 I had to do a handfull of stuff to get the efr to fit bottom-mount, like clearance a part of the block with a die grinder, but aside from that it wasn’t anything too groundbreaking. Also it will easily break 500 if I had a better fuel setup. Onto some pictures! The dyno graph shows wastegate (12 psi), low boost (14 psi), medium boost (17 psi), and high boost (19 psi). Sent from my iPhone using Tapatalk __________________

08-21-2018, 11:35 AM	#2
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 5,998 Trader Rating: (13) Feedback Score: 13 reviews	When I dynoed mine on Dynodynamics (similar to mustang) CP 8.5:1 comp Eagle rods HKS 264 Step 1 Stock Intake and Exhaust Blitz Nurspec Blitz FMIC GT2871R .86 Nismo 740cc Walbro 255 @ 43 psi base fuel pressure PowerFC D jetro Cali Piss 91 360 WHP @ 5500..... Nothing spectacular. __________________ Turn and Burn!

08-21-2018, 12:28 PM	#3
KiDyNomiTe Post Whore! Join Date: Mar 2002 Location: Chicago Age: 37 Posts: 6,296 Trader Rating: (0) Rides Gallery: KiDyNomiTe Feedback Score: 0 reviews	When I was 2.2L SR GTX2863 Poncams ebay manifold modded for EWG, hopefully going to get a better manifold, finding good options is terribly difficult Tial MVS 19 psi 398/390 __________________ PROCEED Grip Gambler

08-21-2018, 03:45 PM	#7
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 5,998 Trader Rating: (13) Feedback Score: 13 reviews	Wait all you guys live in the same area? __________________ Turn and Burn!

08-21-2018, 11:42 PM	#16
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 5,998 Trader Rating: (13) Feedback Score: 13 reviews	cool pacotaco! do you know if you east bay or peninsula? Its expensive AF up here... Come by for a beer and check out my build... when you got time __________________ Turn and Burn!

08-21-2018, 02:46 PM	#5
derass Zilvia FREAK! Join Date: Jun 2010 Location: Toronto, ON Age: 36 Posts: 1,182 Trader Rating: (0) Feedback Score: 0 reviews	damn. impressive. 492 whp is probably the highest I've ever seen from 2.0 L bottom mount SR. 425 whp was about the highest I'd seen before. I think your extra 70 whp came from the E85. And maybe some EFR efficiency.

08-21-2018, 03:58 PM	#8
zach3904 Join Date: Nov 2008 Location: washington Age: 38 Posts: 25 Trader Rating: (0) Feedback Score: 0 reviews	Textbook low power KA-T setup. Kinda ghetto in spots, but it's been good to me. T25 (bump to T28 soon) SR injectors Z32 MAF Stock internals RS Enthalpy OTS tune CodyAce manifold PBM mid mount intercooler PBM cobra DP

08-21-2018, 04:26 PM	#9
jumpman2334 Zilvia FREAK! Join Date: Jan 2010 Location: SHOW ME WHAT YOU GOT Posts: 1,115 Trader Rating: (1) Feedback Score: 1 reviews	do you guys not have to run scavenge pumps for the oil return on these setups?

08-21-2018, 05:22 PM	#10
RalliartRsX Post Whore! Join Date: Apr 2006 Location: Maryland Posts: 4,791 Trader Rating: (32) Feedback Score: 32 reviews	Does a stock SR20 run a scavenge pump? Why would anyone need to run one jumpman?

08-21-2018, 05:26 PM	#11
xpinoyxmk Zilvia Addict Join Date: Feb 2009 Location: FL Posts: 712 Trader Rating: (11) Feedback Score: 11 reviews	Awesome numbers paco! Aiming for a similar setup but with a ve head. I know its not needed but i got it for cheap and it should be more reliable.

08-21-2018, 07:26 PM	#13
derass Zilvia FREAK! Join Date: Jun 2010 Location: Toronto, ON Age: 36 Posts: 1,182 Trader Rating: (0) Feedback Score: 0 reviews	A Nissan bottom mount turbo setup doesn't put the turbo under the engine or anything. The turbo is still half-way up the engine, and the oil drains into the block above the oil pan. So gravity just does it's thing. Bottom mount: Top mount:

08-22-2018, 10:47 AM	#21
RalliartRsX Post Whore! Join Date: Apr 2006 Location: Maryland Posts: 4,791 Trader Rating: (32) Feedback Score: 32 reviews	^^ Yeah, that's too far......

08-22-2018, 06:02 PM	#25
dev893 Join Date: Feb 2018 Location: Utah Age: 28 Posts: 11 Trader Rating: (0) Feedback Score: 0 reviews	is a stock manifold considered bottom mount?

08-23-2018, 02:25 PM	#27
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 5,998 Trader Rating: (13) Feedback Score: 13 reviews	Was running 17PSI.... needed it for more track duty so didn't want to run it 21 PSI which is closer to its sweet spot.... Then blew the motor cause of a coolant leak under the intake manifold..... Now went freddy to clean that up. __________________ Turn and Burn!

08-23-2018, 03:05 PM	#28
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 5,998 Trader Rating: (13) Feedback Score: 13 reviews	@paco, do the ATI dampers make that big of a difference? When should you add it? Been debating for a long time. Thanks for your insight. __________________ Turn and Burn!

08-23-2018, 07:50 PM	#29
Dboyizmlg Nissanaholic! Join Date: Aug 2011 Location: SoCal (I.E.), San Berdino, Colton, Redlands Posts: 1,675 Trader Rating: (18) Feedback Score: 18 reviews	Was that Juan tuning your car?

08-23-2018, 08:18 PM	#30
RalliartRsX Post Whore! Join Date: Apr 2006 Location: Maryland Posts: 4,791 Trader Rating: (32) Feedback Score: 32 reviews	^^^^^^^ Yep