GT2871 USERS. SR motor

[zombiewolf513]

Deck the head, deck the block, get the oil pump machined flat with the face of the block. No copper spray or rtv on the headgasket.

Tomei TYPE-L fpr

1000cc injectors are WAY to much. 550-750 is were you wanna be.

Stock intake manifold, stock tb

[Fatboy Garage]

Originally Posted by zombiewolf513

Deck the head, deck the block, get the oil pump machined flat with the face of the block. No copper spray or rtv on the headgasket.

Tomei TYPE-L fpr

1000cc injectors are WAY to much. 550-750 is were you wanna be.

Stock intake manifold, stock tb

What is your reasoning behind no copper spray on the headgasket?

On all the motors we have built we have never had an issue with the head gasket that has had copper sprayed onto it. Just wanted to see your opinion.

[Seraphim38]

550s will be near out of duty cycle at 350whp. It has been discussed here many times. 1000s on the other hand, on my car, max datalogged value was at 50% duty cycle. However, it is worth noting that duty cycle increases under load at lower rpms, so I max my 1000cs on the street at low rpm and as boost comes on they back down on duty cycle. My 1000s at 350hp ran smooth as silk and now that I am dishing out more hp I am glad I bought the right injectors once and don't have to upgrade now.

I say deck the head and do the right head gasket based on target compression ratio. I currently have running a 0.8mm HG, since I have low compression Greddy pistons

[zombiewolf513]

Thats good to know. I take my setup to get the haltech initially tuned today, 9:1 .02" over pistons, eagle rods, all arp studs, all acl race bearings, 750s, 1.5mm head gasket, .004" total decked, 2871r, jwt s3 cams, doc bottom mount, hmic, map setup, stock intake and tb, stock springs, full exhaust. With the tune being done by national speed in wilmington im hoping for 400 whp, some friends say 410-420 but im not so sure on that. Opinions? Estimates? Guesses? My only concern is the turbos internal gate, i ported it, but im still concerned it wont offer the performance i need.

Member sr20det510, notice he has low CR pistons with his .8 HG. IMO do not do that with your 9:1 pistons, unless you have a nice EMS and a REALLY good tuner. Your CR would be through the roof.

[chris_240sx]

Originally Posted by zombiewolf513

Opinions? Estimates? Guesses? My only concern is the turbos internal gate, i ported it, but im still concerned it wont offer the performance i need.

Sounds like a solid setup, very similar to what I want to do.
From my understanding the internal gates on those aren't very great and you would have an easier time using an external gate.

[zombiewolf513]

Originally Posted by chris_240sx

Sounds like a solid setup, very similar to what I want to do.
From my understanding the internal gates on those aren't very great and you would have an easier time using an external gate.

I bought it not expecting to do a build, blew the engine 2 weeks later. Had i known i was gonna build i would have gone external, but to help as much as possible i ported that bitch out.

[sr20det_510]

i have 9:1 86.5mm pistons with eagle rods

[sr20det_510]

yah i dont want high cp so i can run atleast decent boost

[zombiewolf513]

I called Apexi and that was what they told me...
No spray if the block and head have been decked. I figure it is sort of like when you take two panels of flat glass and twist them together, they create a tight seal. No need for a sealant between the two. Metal with a smooth surface finish acts in a similar fashion, and the apexi head gasket does appear to have some sort of very thin coating (maybe electro-plated?) on the two outer (the word escapse me right now but...) "sandwich plates."

I, personally, would be inclined to use copper spray if the surface finish was course or scratched somewhere though.

[sr20det_510]

because im afraid if i get my head and block deck they might shave too much

[sr20det_510]

thats it im getting a rb26dett lol

[EsChassisLove]

Block is sleeved, both head and block decked and my Apexi HG failed without any copper seal.

Fuck Apexi gaskets lol.

I went cosworth and put a bunch of spray on it, almost 3000 miles of abuse later it's perfect.

[zombiewolf513]

Originally Posted by EsChassisLove

Block is sleeved, both head and block decked and my Apexi HG failed without any copper seal.

Thats a first

[EsChassisLove]

Originally Posted by zombiewolf513

Thats a first

Nah it's not. Apexis fail with sleeved blocks. Darton failed to mention that until after wards.

[sr20det_510]

Like i said

[zombiewolf513]

Originally Posted by EsChassisLove

Nah it's not. Apexis fail with sleeved blocks. Darton failed to mention that until after wards.

If thats true, I wonder why that is

Originally Posted by sr20det_510

Like i said

What are you worried about? Just copy someone elses setup

[Seraphim38]

news to me: I have a sleeved block with an Apexi HG. I will have to ask my builder and ask Mazworx, who did my bottom end about this, but so far I have no evidence of an HG problem and my motor puts down some good power. Anyway, I can't think of why someone would ever want to sleeve a block for 350whp: it is completely unnecessary.

[EsChassisLove]

Who said my main goal was 350?

I'm slowly making my way to 600.

I'm not like most idiots that shoot for massive power right of the bat then come to realize they can't control the power for shit because they have driven anything near that powerful.

I sold the 2871 for a reason lol

[jamg]

what's the "codyace" set up?

[zombiewolf513]

Originally Posted by jamg

what's the "codyace" set up?

JWT s3 cams
Jwt ecu
2871r extrude honed and swaned
Stock manifold extrude honed and swaned

Uhhh theres something else i think but i forget, its something like that

[mattsil80wis]

Originally Posted by jamg

what's the "codyace" set up?

Originally Posted by zombiewolf513

JWT s3 cams
Jwt ecu
2871r
Stock manifold extrude honed and swaned

Uhhh theres something else i think but i forget, its something like that

greddy IM
stock ex mani converted to external WG

[BlackZenkiS14]

Meth. gotta have meth. I'm slowly working towards that setup as well.

Extrude honed, external wg, and GTX2867R coming over next winter.

[sr20det_510]

nice i guess ill just do the codyace

[BlackZenkiS14]

That's what I would do. But you can do pistons, .5 over, and deck head and block with apex head gasket. But only do that if you have it all taken apart. Don't disassemble if you have a complete stock engine right now.

[sr20det_510]

Originally Posted by BlackZenkiS14

That's what I would do. But you can do pistons, .5 over, and deck head and block with apex head gasket. But only do that if you have it all taken apart. Don't disassemble if you have a complete stock engine right now.

Well my engine is all together right now, on an engine stand, has not been cracked open, the only reason why i bought the rods and pistons to just have a good peice of mind, me coming from the high hp mustang engine world, u always want a strong bottom, so i just figure since i have the engine out of the car why not just build it, so bought rods pistons, still debatting arp mains, gonna buy (undecided) cams, gt2871r apexi 1.5 arp head studs .50bore 9:1 cp, (undecided) deck both save up for aem ems, stock springs and lifters stock chain and stock cam gears, am i missing anything? 255 pump 500-800cc injectors tomei frp

[zombiewolf513]

[QUOTE=sr20det_510;5250225](undecided) deck both[QUOTE]

You shouldnt be undecided on this. Deck both if youre gonna take it apart. At least have them measured for flatness.

[BlackZenkiS14]

Originally Posted by sr20det_510

Well my engine is all together right now, on an engine stand, has not been cracked open, the only reason why i bought the rods and pistons to just have a good peice of mind, me coming from the high hp mustang engine world, u always want a strong bottom, so i just figure since i have the engine out of the car why not just build it, so bought rods pistons, still debatting arp mains, gonna buy (undecided) cams, gt2871r apexi 1.5 arp head studs .50bore 9:1 cp, (undecided) deck both save up for aem ems, stock springs and lifters stock chain and stock cam gears, am i missing anything? 255 pump 500-800cc injectors tomei frp

If you have a factory engine sitting on a stand, don't fuck with it.

Run a 100% factory bottom end, these engines will handle up to 400whp on a good clean tune, so don't even worry about it until you need it.

If you have a STOCK 100% clean engine with good compression, then leave it alone and save your time/money/headache and purchase the following pieces:

Greddy style intake Manifold
Send the stock exhaust manifold off to Cody to get extrude honed
Garret GT2871R turbo
740cc injectors of your choice (nismo)
Adjustable fuel pressure regulator
Z32 N62 MAF
Jim Wolf Tech tuned ECU
Walbro 255lph fuel pump
+all the necessary bolt ons (fmic, exhaust, down pipe/o2 housing, intake, bov, clutch, etc...)

Run 93 octane and add a meth kit if you want.

But you'll be daily driver reliable and trap 114+ in the 1/4, and run with most anything on the road.

[sr20det_510]

Originally Posted by BlackZenkiS14

If you have a factory engine sitting on a stand, don't fuck with it.

Run a 100% factory bottom end, these engines will handle up to 400whp on a good clean tune, so don't even worry about it until you need it.

If you have a STOCK 100% clean engine with good compression, then leave it alone and save your time/money/headache and purchase the following pieces:

Greddy style intake Manifold
Send the stock exhaust manifold off to Cody to get extrude honed
Garret GT2871R turbo
740cc injectors of your choice (nismo)
Adjustable fuel pressure regulator
Z32 N62 MAF
Jim Wolf Tech tuned ECU
Walbro 255lph fuel pump
+all the necessary bolt ons (fmic, exhaust, down pipe/o2 housing, intake, bov, clutch, etc...)

Run 93 octane and add a meth kit if you want.

But you'll be daily driver reliable and trap 114+ in the 1/4, and run with most anything on the road.

10-4
copy that

[sr20det_510]

so should i even bother tearing this apart?

[sr20det_510]

BTW thanks for your input guys