shooting for 300-350 whp on stock internal SR20 - Page 2 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Fuego · 01-23-2014, 10:56 AM

Quote:

Originally Posted by rob_240

I guess depends what your gonna use it for and if you plan on keeping it. What good is all those other parts when u spin a bearing?

I think you said it yourself, it's about what you use it for. That and how you maintain it.

Kingtal0n · 01-23-2014, 05:42 PM

Just because its "built" doesnt mean it wont spin a bearing.

Building an engine takes years of experience. You have had to have built several, perhaps even fifty of them, and beat them up, blown them up, torn them down, and examined the points of failure for each.
Do they all fail in the same way? What are the common points of failure?

Most people build their engines only to have them fail very quickly. Thats one reason why you see a majority of "part outs" in the for sale section, or "freshly rebuilt engines with just 80 miles". Those are motors that were built, failed quickly, then RE-built, and put up for sale before it happens again. No one wants to come on a public forum and admit they blew up their built engine in just 800 miles. People tend to leave that part out. notice you dont see a lot of built engines with 20,000+ miles. Why is that??

Mikester · 01-24-2014, 02:22 PM

Quote:

Originally Posted by Kingtal0n

notice you dont see a lot of built engines with 20,000+ miles. Why is that??

Because many people with fully built, high-dollar builds eventually come to the realization that their 240 has completely sucked the life out of them... Usually, long before 20K miles ever get clocked

Then that once-loved and cherished 'built' motor ends up getting passed from dumbass to dumbass... until it loses its will to go on with life, dies and ends up right back in the for sale section or Craigslist listed as non-running, horribly beaten or possibly FTGH.

Steveohoes · 01-24-2014, 02:52 PM

FP big t28. Its a t25 with a t28 compressor wheel. Flows more cfm then s14 and s15 t28's. And since its a pretty much a t25 it a DIRECT FIT.

Just pair it with a 550's, z32 maf, and a tune and youll be able to make 300+ easy.

Some guy just made 400hp off one. I kid you not

ultimateirving · 01-24-2014, 03:33 PM

I don't think they even make fp t28 anymore.. If so I haven't seem any websites selling when I was hunting for a new turbo a year or
Two ago

Steveohoes · 01-24-2014, 03:40 PM

Forced Performance Turbochargers: Turbo Upgrades
(2nd from bottom)

I don't think they have them in stock. Its categorized as a special request upgrade, such as a service. Send in your t25 and get it back as the big t28.

Fuego · 01-27-2014, 12:14 PM

Quote:

Originally Posted by Steveohoes

FP big t28
Some guy just made 400hp off one. I kid you not

I find that extremely hard to believe unless it was built and/or had some giggle juice.

Mikester · 01-27-2014, 03:34 PM

"Big T28" can mean a lot of things... so can "some guy."

Steveohoes · 01-28-2014, 09:23 PM

I thought the same, but after doing research on the companys website I found out other wise.

Garrett GT2871R flows around 580-600
Forced performance's modified Garrett t25 "big t28" flows 550 CFM
Garrett s15 T28 flows 448 CFM

Also it costs cheaper to get rebuilt because its still a journal bearing.

here is proof from a car domain:
http://www.cardomain.com/ride/536500
Guy has it maxed out at 20.5-21 on pump gas with a SR with a thicker head gasket and couple bolts on, nothing major done.

@Mikester Context Clues Song (Context Clues by Melissa) - YouTube before you post next time

*TheRealSy90* · 01-28-2014, 09:47 PM

DONT do rocker arm stoppers.

DO do dual rocker guides.

T28, 550's, z32 mafs, rom tune. Done.

Sent from my iPhone using Tapatalk

Mikester · 01-29-2014, 01:51 PM

Quote:

Originally Posted by Steveohoes

@Mikester Context Clues Song (Context Clues by Melissa) - YouTube before you post next time

Not sure what that means. I read FP's web info, which gave vague info at best... and although 409/338 at 20-21psi is respectable (and stealthy), it doesn't make it any less hard to believe that it's nothing more than a 'T25 with T28 compressor wheel.'

On that note, you may want to avoid using statements like:

"Flows more cfm then s14 and s15 t28's. And since its a pretty much a t25 it a DIRECT FIT. Just pair it with a 550's, z32 maf, and a tune and youll be able to make 300+ easy.

Some guy just made 400hp off one. I kid you not"

See where you fucked up yet? If not, you may want to re-check your own goddamned 'context clues' before posting.

Fuego · 01-29-2014, 01:55 PM

I'm going to side with Mikester on this one.

You're basically telling us a turbo that flows less is making the same power as a turbo that flows more at the same boost.

I'm sticking with the built/giggle juice or maybe the dyno being way off.

Tom N · 01-29-2014, 03:39 PM

Dyno numbers with out track times is worthless info.
I kid you not.

Mikester · 01-29-2014, 03:47 PM

^^LOL^^

That 'some guy's' cardomain site said 12.08ET @124mph. Pretty decent trap speed. But I still can't swallow a T25 fitted with a T28 compressor wheel doing anything but choking on itself- there has got to be more to it considering the compressor wheels (and housings) in our M8270's tower over the little T25/28's... yet we are lucky to see 420-ish to the wheels on fully built setups @25-26psi boost.

Tom N · 01-29-2014, 03:53 PM

Would need to know the weight if the car.
Weight plays a big factor.

I have a friend who went 10.8 @ 126 in a fwd eclipse with the stock motor and stock 14b turbo ( no nitrous ). Of coarse the car was extremely lightened.

I will say the FP big T28 is old school in DSM land and people have done well with then. Never heard of anyone breaking 400hp with it though. A few people have with a E316g but it flows a little more than the FP T28.

Hatemy7 · 01-29-2014, 04:11 PM

Quote:

Originally Posted by 89hatchman

I have a red top SR20DET that I'm hoping to get 300-350 whp out of without having to change up the bottom end and I have a few questions.

First has to do with my turbo. I would really like to keep the stock bottom mount style turbo manifold and use my existing megan elbow, so that leaves me with the T25 or T28 correct? I have heard good things about the ball bearing T28 but its a little out of my budget and perhaps a little more finicky with oil pressure. Not to mention it's difficulty to rebuild.

I'm looking at using Injector Dynamics 1000cc injectors and a circuit sport top mount fuel rail. Does it matter if the opening is 11 or 14? Or will it be a max of 1000cc of flow either way?

Looking at getting a MAP ecu set up since the tuner that everyone in my area suggests, suggests that method of tuning. Megasquirt works well?

Would rocker arm stoppers and ARP head studs be suggested as insurance? I'm taking my head off anyways to do a head gasket anyways. The stock head bolts are torque to yield right?

Any manual boost controllers you would suggest?

Would that be about it? I'm looking at spending around 2 to 2.5k on this whole thing. Doable?

I currently have an ebay front mount intercooler set up and a clutch good for 400 whp

expect rod knock.

Sr20's are ROD KNOCK KINGS! build that shit

Steveohoes · 01-29-2014, 09:16 PM

Decipher what you want from what I posted. Im not telling you guys a bunch of shit, and pulling numbers out of my ass. I gave you specs of the turbo and data from tests with the turbo.

The OP is looking for a turbo that will make 300-350 HP. This turbo is perfectly capable of doing that and being a direct bolt on. No different coolant lines, no different oil restrictor. DIRECT OEM FIT.

Quote:

Originally Posted by Mikester

On that note, you may want to avoid using statements like:

"FP big t28. Its a t25 with a t28 compressor wheel. Flows more cfm then s14 and s15 t28's. And since its a pretty much a t25 it a DIRECT FIT. Just pair it with a 550's, z32 maf, and a tune and youll be able to make 300+ easy.

Some guy just made 400hp off one. I kid you not"

See where you fucked up yet? If not, you may want to re-check your own goddamned 'context clues' before posting.

Well you didn't even quote me right, but I see nothing wrong with my statment

01-23-2014, 05:42 PM	#32
Kingtal0n Post Whore! Join Date: Jul 2005 Location: South Florida Age: 38 Posts: 4,649 Trader Rating: (17) Feedback Score: 17 reviews	Just because its "built" doesnt mean it wont spin a bearing. Building an engine takes years of experience. You have had to have built several, perhaps even fifty of them, and beat them up, blown them up, torn them down, and examined the points of failure for each. Do they all fail in the same way? What are the common points of failure? Most people build their engines only to have them fail very quickly. Thats one reason why you see a majority of "part outs" in the for sale section, or "freshly rebuilt engines with just 80 miles". Those are motors that were built, failed quickly, then RE-built, and put up for sale before it happens again. No one wants to come on a public forum and admit they blew up their built engine in just 800 miles. People tend to leave that part out. notice you dont see a lot of built engines with 20,000+ miles. Why is that?? __________________ 5.3/4l80e/turbo 240sx playthrough: https://tinyurl.com/turbo240

01-24-2014, 02:52 PM	#34
Steveohoes Zilvia Member Join Date: Mar 2007 Location: Springfield Posts: 211 Trader Rating: (3) Feedback Score: 3 reviews	FP big t28. Its a t25 with a t28 compressor wheel. Flows more cfm then s14 and s15 t28's. And since its a pretty much a t25 it a DIRECT FIT. Just pair it with a 550's, z32 maf, and a tune and youll be able to make 300+ easy. Some guy just made 400hp off one. I kid you not __________________ Driftfaction.com driftfaction.blogspot.com

01-24-2014, 03:33 PM	#35
ultimateirving Zilvia FREAK! Join Date: Nov 2010 Location: arizona Age: 33 Posts: 1,519 Trader Rating: (1) Feedback Score: 1 reviews	I don't think they even make fp t28 anymore.. If so I haven't seem any websites selling when I was hunting for a new turbo a year or Two ago __________________ Z32 with lq4 swap Desert Street Scene \|\| Dssevents.com

01-24-2014, 03:40 PM	#36
Steveohoes Zilvia Member Join Date: Mar 2007 Location: Springfield Posts: 211 Trader Rating: (3) Feedback Score: 3 reviews	Forced Performance Turbochargers: Turbo Upgrades (2nd from bottom) I don't think they have them in stock. Its categorized as a special request upgrade, such as a service. Send in your t25 and get it back as the big t28. __________________ Driftfaction.com driftfaction.blogspot.com

01-27-2014, 03:34 PM	#38
Mikester Nissanaholic! Join Date: Jun 2007 Location: Kathleen, GA Age: 50 Posts: 1,941 Trader Rating: (0) Feedback Score: 0 reviews	"Big T28" can mean a lot of things... so can "some guy." __________________

01-28-2014, 09:23 PM	#39
Steveohoes Zilvia Member Join Date: Mar 2007 Location: Springfield Posts: 211 Trader Rating: (3) Feedback Score: 3 reviews	I thought the same, but after doing research on the companys website I found out other wise. Garrett GT2871R flows around 580-600 Forced performance's modified Garrett t25 "big t28" flows 550 CFM Garrett s15 T28 flows 448 CFM Also it costs cheaper to get rebuilt because its still a journal bearing. here is proof from a car domain: http://www.cardomain.com/ride/536500 Guy has it maxed out at 20.5-21 on pump gas with a SR with a thicker head gasket and couple bolts on, nothing major done. @Mikester Context Clues Song (Context Clues by Melissa) - YouTube before you post next time __________________ Driftfaction.com driftfaction.blogspot.com

01-29-2014, 01:55 PM	#42
Fuego Zilvia Addict Join Date: Nov 2011 Location: Las Vegas Age: 31 Posts: 629 Trader Rating: (0) Feedback Score: 0 reviews	I'm going to side with Mikester on this one. You're basically telling us a turbo that flows less is making the same power as a turbo that flows more at the same boost. I'm sticking with the built/giggle juice or maybe the dyno being way off. __________________

01-29-2014, 03:39 PM	#43
Tom N Zilvia Addict Join Date: Oct 2012 Location: SW Florida Posts: 746 Trader Rating: (1) Feedback Score: 1 reviews	Dyno numbers with out track times is worthless info. I kid you not. __________________ 98 240sx w/ S15 SR20DET, T2 20g, 11.22 @ 124.98

01-29-2014, 03:47 PM	#44
Mikester Nissanaholic! Join Date: Jun 2007 Location: Kathleen, GA Age: 50 Posts: 1,941 Trader Rating: (0) Feedback Score: 0 reviews	^^LOL^^ That 'some guy's' cardomain site said 12.08ET @124mph. Pretty decent trap speed. But I still can't swallow a T25 fitted with a T28 compressor wheel doing anything but choking on itself- there has got to be more to it considering the compressor wheels (and housings) in our M8270's tower over the little T25/28's... yet we are lucky to see 420-ish to the wheels on fully built setups @25-26psi boost. __________________

01-29-2014, 03:53 PM	#45
Tom N Zilvia Addict Join Date: Oct 2012 Location: SW Florida Posts: 746 Trader Rating: (1) Feedback Score: 1 reviews	Would need to know the weight if the car. Weight plays a big factor. I have a friend who went 10.8 @ 126 in a fwd eclipse with the stock motor and stock 14b turbo ( no nitrous ). Of coarse the car was extremely lightened. I will say the FP big T28 is old school in DSM land and people have done well with then. Never heard of anyone breaking 400hp with it though. A few people have with a E316g but it flows a little more than the FP T28. __________________ 98 240sx w/ S15 SR20DET, T2 20g, 11.22 @ 124.98

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