gt2871r vs gt3071r - Page 3 - Hyundai Genesis Forum
Engine and Turbos This section is for discussing engine parts (for example, bottom or top end), turbos (upgrades, porting, etc), or other engine related parts or swaps.

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post #21 of 30 Old 04-29-2010, 10:34 PM Thread Starter
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read the post above yours, understand all the numbers and terms I posted, then all your questions will be answered
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post #22 of 30 Old 04-30-2010, 11:01 AM
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Quote:
Originally Posted by moejoe_989 View Post
I figured I would ask this question here so that I wouldn't have to start a new thread since its related to turbos.
I'm planning on getting a turbo kit for the 2.0 Track. I've been looking at the APT GT2871R and the GT3071. Obviously I'm a guy, so I want the most hp available. Sort of like Tim Allen on 'Home Improvement'.
I'm really glad I found this thread because it did answer some very important questions I had for these turbos anyway. Davisk6 had some good points made as well as everyone else.
I'm planning to use to car as a DD with very little to no track use. Mainly because I won't have good access to a decent track. Davisk6's points about the GT2871 being a little more 'streeable' seemed very valid and pointed me in the right direction.

One question I had was: On a stock 2.0T model, properly broken in, what other mods would compliment the GT2871? I'm not looking to break the bank, but I also don't want too much HP that I'll damage the engine from 'misuse',
I'm reading that 20 psi is a good gauge, but i'm curious as to what the gen coupe could handle with a turbo like this?
Obviously I would be getting the turbo professionally installed and then tuned from there.
Sorry I'm kind of all over the place...just really inexperienced with this whole thing.
Either turbo would probably suit my needs... but the 350+ hp sounds mighty tempting, but I won't be drag racing it or any track use. The car would just be street use with maybe a quick run from point A to B here and there and probably just bragging rights.
I kind of want a car with show AND go. But don't worry, I'm not going to 'rice' it out. Anything I do will be tastefully done.

Regards,

Joe
Either one of those turbo choices would do fine for a DD. If you are not tracking the car, <300whp should be fine for you & plenty of fun. You will need these supporting mods along with either turbo upgrade:

-Intake
-Exhaust
-FMIC & piping
-BOV
-Larger injectors
-Colder spark plugs
-MBC/EBC
-WGA
-Return fuel system upgrade
-Tune

I would also recommend forged internals if you are planning on going much over 300whp...

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post #23 of 30 Old 04-30-2010, 11:16 AM
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colder spark plugs?? I thought the stock ones were iridum already? this is the first time i've heard anything come up about spark plugs..

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post #24 of 30 Old 04-30-2010, 01:23 PM
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Quote:
Originally Posted by Split View Post
colder spark plugs?? I thought the stock ones were iridum already? this is the first time i've heard anything come up about spark plugs..
The stock ones are iridium & so will be the replacements, only one heat range colder for the additional added power. This is not a requirement & the vehicle would operate fine with the stock plugs, it would just help. The return fuel setup would not be necessary, but I would still recommend. In addition, I would probably add intake gasket upgrade to the short list.

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post #25 of 30 Old 04-30-2010, 02:11 PM
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lol ^ SPAM??? WTF??

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post #26 of 30 Old 04-30-2010, 02:53 PM
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Quote:
Originally Posted by Split View Post
lol ^ SPAM??? WTF??
Got'em...

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post #27 of 30 Old 05-04-2010, 12:59 PM
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Tufast's list is pretty good, but you won't need a Wastegate Actuator if you buy a full bolt on unit, as the new units come with an adjustable WGA. But at a minimum you will need:

Aftermarket Intake, as the stock air box will probably not fit anymore.
Turbo Back Exhast. (Catted or not, your choice)
FMIC
550cc injectors (minimum)
Replacement BPV/BOV, since the new unit won't have one.
Full Engine Management (preferably something fuel, boost and ignition).

That the minimum. If you have some extra cash...

Aftermarket Boost Control Solenoid (Grimspeed BCS)
Return Fuel system with External Regulator. (Nice to have but not completely necessary for your power goals).
Upgraded Clutch/Flywheel as the stock unit will slip when you really get on it.

That should be plenty to hit around 250rwhp easily. A fully tuned GT28 should reach closer to 275rwhp, which may be close to 300+ crank HP/Tq, which is the generally accepted torque limit of the stock bottom end. Again, with a proper tune, the bottom end should hold up just fine to that power. Just watch the torque curve. Good luck!
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post #28 of 30 Old 05-04-2010, 07:19 PM
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gt2876 will make 350hp no problem. My 14g 7ism kit made 338whp.

7ism td05 turbo, 7ism equal length tubular manifold, 7ism FMIC and hard pipes, 7ism catless race downpipe, Tial 50mm BOV, Poweraxel flash module (7500rpm redline) and custom tune, Grimmspeed BCS, Grimmspeed manifold spacer, Grimmspeed 160 degree thermo, water weter replacement, Agency Power 3" exhaust, Electric cutout, Rc750cc injectors, autometer boost gauge, HID fog lights, tinted fogs and tail lights, wieght reduction stg1.

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post #29 of 30 Old 05-04-2010, 08:42 PM Thread Starter
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Dyno numbers vary soo much and should be used as a tuning device.When picking turbos cfm rating is what you look for.14g tdo5 and the gt2876 flow about the same but the gt2876 spools faster,
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post #30 of 30 Old 05-01-2012, 05:53 PM
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Gt3071r requirements

I was thinking of the gt3071r turbo upgrade but i don't know what I need to complement it with. I already have a 3" exhaust, CAI, BOV. I was wondering what the minimum fuel injectors I would need and the management system. Sorry this was kinda answered but also kinda not. I am also on a tight budget so i don't need anything extreme. Just so i don't blow my engine or anything like that. I also plan to get it tuned
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