high compression sr20det with 3582r? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

rxspeed7 · 11-24-2008, 03:04 PM

i was just given a new turbo and was wondering what you guys thought on possibly running this on my high compression sr20det. right now my mods are as follows
s14 sr20de bottom end(10:1 cr)
s13 sr20det turbo head
brian crower 264 cams
cosworth 1.8mm h/g
arp head studs
greddy intake manifold
gt2871rs
stock 370cc inj( going to go to 740's with this turbo)
sard fpr and -6 line
rs enthalpy tune(going to retune for this turbo)
now my main question is do you guys think at 10-14 pounds on this 3582r with a .82a/r t3 turbo my motor could handle this? thanks in advance

rxspeed7 · 11-24-2008, 07:36 PM

anyone....

480sx · 11-26-2008, 12:43 PM

You will need to at least run meth injection or E85 for this to be smart. E85 would be your best bet. It can be done, tuning will need to be perfect and done by a pro. You would be much better off if this was a daily driver to just go low comp.

vaughn4 · 11-27-2008, 08:43 PM

i dont see any problems with running this turbo.. the bigger injectors will be a MUST as well as a good tune as stated above. your motor will make quite a bit of power with that compression and turbo!! can wait to see the numbers. just make sure everything else is up to par...

pwr-adr · 11-28-2008, 02:02 PM

I would consider getting a smaller headgasket. Why so thick? From my experience the thicker the head gasket, the less lifetime it has and the more it loosens up the head bolts/studs. A thinner gasket will obviously raise the compression ratio but isn't that the point of your build anyways?

High compression turbo motors are unbeatable given a good tune. You can't run as much boost but you don't need to given the much much much better and streetable powerband and efficiency. I am currently building my sr (9.2:1 c.r.) in combo with a built p'n'p head and hks2540r. The biggest thing is having enough fuel and getting your timing right on.. High c.r. and boost FTW!

I would however consider getting a standalone. ROM tunes are good for the price but with a set up like you are planning on, I wouldn't go any route other than standalone. It pays to have the ability to FINE tune your car, high comp turbo motors can really benefit from a crisp smooth tune more so than N/A or low comp boosted applications.

Matman03 · 12-01-2008, 07:09 AM

I am running 18 psi on stock internals and daily drive my car Hard...have had no problem except some fouled plugs.

rxspeed7 · 12-04-2008, 07:34 PM

^^^^ on a high compression motor?

11-24-2008, 03:04 PM	#1
rxspeed7 Join Date: Aug 2007 Location: ocala,fl Age: 37 Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	high compression sr20det with 3582r? i was just given a new turbo and was wondering what you guys thought on possibly running this on my high compression sr20det. right now my mods are as follows s14 sr20de bottom end(10:1 cr) s13 sr20det turbo head brian crower 264 cams cosworth 1.8mm h/g arp head studs greddy intake manifold gt2871rs stock 370cc inj( going to go to 740's with this turbo) sard fpr and -6 line rs enthalpy tune(going to retune for this turbo) now my main question is do you guys think at 10-14 pounds on this 3582r with a .82a/r t3 turbo my motor could handle this? thanks in advance

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11-24-2008, 07:36 PM	#2
rxspeed7 Join Date: Aug 2007 Location: ocala,fl Age: 37 Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	anyone....

11-26-2008, 12:43 PM	#3
480sx Leaky Injector Join Date: May 2008 Location: NOVA Posts: 102 Trader Rating: (3) Feedback Score: 3 reviews	You will need to at least run meth injection or E85 for this to be smart. E85 would be your best bet. It can be done, tuning will need to be perfect and done by a pro. You would be much better off if this was a daily driver to just go low comp.

11-28-2008, 02:02 PM	#5
pwr-adr Leaky Injector Join Date: May 2008 Location: ABQ, NM Posts: 127 Trader Rating: (0) Feedback Score: 0 reviews	I would consider getting a smaller headgasket. Why so thick? From my experience the thicker the head gasket, the less lifetime it has and the more it loosens up the head bolts/studs. A thinner gasket will obviously raise the compression ratio but isn't that the point of your build anyways? High compression turbo motors are unbeatable given a good tune. You can't run as much boost but you don't need to given the much much much better and streetable powerband and efficiency. I am currently building my sr (9.2:1 c.r.) in combo with a built p'n'p head and hks2540r. The biggest thing is having enough fuel and getting your timing right on.. High c.r. and boost FTW! I would however consider getting a standalone. ROM tunes are good for the price but with a set up like you are planning on, I wouldn't go any route other than standalone. It pays to have the ability to FINE tune your car, high comp turbo motors can really benefit from a crisp smooth tune more so than N/A or low comp boosted applications.

12-01-2008, 07:09 AM	#6
Matman03 Leaky Injector Join Date: Sep 2008 Location: ATL, GA Age: 39 Posts: 129 Trader Rating: (1) Feedback Score: 1 reviews	I am running 18 psi on stock internals and daily drive my car Hard...have had no problem except some fouled plugs.

12-04-2008, 07:34 PM	#7
rxspeed7 Join Date: Aug 2007 Location: ocala,fl Age: 37 Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	^^^^ on a high compression motor?