gt2876r turbo kit but worried about Laggg.
03-01-2012, 03:16 AM
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gt2876r turbo kit but worried about Laggg.
Hey wazzup guys my name is Gabe and i been a viewer for the past couple of
years. I been wanting to put a turbo kit together for the past few months. and after
doing a few research and looking and looking at the setups of other people i been
thinking that this could be an ok set up; but like the title says i'm a little worried
about lag. I'm open to every opinion and will greatly appreciate your comments.
Car: 06 SS/SC with 115k
Engine Rebuild with: Commetic Head Gasket, ARP Head Studs, GM Rod and Main
Bearings, GM Piston Rings. and Ecotec Main Girdle Bolt. also new seals and
gaskets.. No more rebuild I'll just hold on to that and build like its suppose to in the future.
turbo alternator kit
Garret Manifold and turbo elbow. Replaced with a synaps tubular manyfold.
ZZP LSJ Turbo Adapter plate replaced with saab intake manifold
ZZP Oil Feed And return line kit
ZZP Turbo Oil Pan
Intercooler (For now i plan to lower IAT2s with the air to water s3 HE already installed. Not no more Lol this is beeng replaced by an ETS DSM air to air intercooler.(courtesy of BLAIZIN07SS)
All this powered by a gt2876r with a .63 a/r turbine housing.
And if budget is enough Dimond pistons 10-1 and zzp 82# Ecotec Valve Springs for
future Camshafts install.
Thank You all for looking.
years. I been wanting to put a turbo kit together for the past few months. and after
doing a few research and looking and looking at the setups of other people i been
thinking that this could be an ok set up; but like the title says i'm a little worried
about lag. I'm open to every opinion and will greatly appreciate your comments.
Car: 06 SS/SC with 115k
Engine Rebuild with: Commetic Head Gasket, ARP Head Studs, GM Rod and Main
Bearings, GM Piston Rings. and Ecotec Main Girdle Bolt. also new seals and
gaskets.. No more rebuild I'll just hold on to that and build like its suppose to in the future.
turbo alternator kit
Garret Manifold and turbo elbow. Replaced with a synaps tubular manyfold.
ZZP LSJ Turbo Adapter plate replaced with saab intake manifold
ZZP Oil Feed And return line kit
ZZP Turbo Oil Pan
Intercooler (For now i plan to lower IAT2s with the air to water s3 HE already installed. Not no more Lol this is beeng replaced by an ETS DSM air to air intercooler.(courtesy of BLAIZIN07SS)
All this powered by a gt2876r with a .63 a/r turbine housing.
And if budget is enough Dimond pistons 10-1 and zzp 82# Ecotec Valve Springs for
future Camshafts install.
Thank You all for looking.
Last edited by Diablo; 04-26-2012 at 11:26 PM.
03-02-2012, 11:38 AM
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Lag? With a GT28? LOL you'll probably be fully spooled by 3,000 rpm.
Stock pistons will be fine. 10:1 will be fine with pump+meth or E85. Hell, you could even go 10.5:1 or 11:1 with E85.
Stock pistons will be fine. 10:1 will be fine with pump+meth or E85. Hell, you could even go 10.5:1 or 11:1 with E85.
03-03-2012, 10:44 PM
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"The turbine is the limiting factor on the 2871 anyways, so adding a larger compressor (2876) is counter productive." 4xle Zilvia.net
"2876 is too laggy as has been said above. Go with either a 2871 or go to a top feed GT3071R with external 44mm wastegate if you want response and more power than a 2871 can deliver", Seraphim38 Zilvia.net
I know that is SR people and that is why I made the thread to see what lsj people thought about the gt2876r.
On the other topic. Unfortunately E85 for now is not an option; the closest E85 pump is about an hour away
and i know i could just store some but just to go get it is quit difficult as well.Methanol sounds like a better option here...
but What do you think the best set up would be?
03-03-2012, 10:48 PM
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I would just leave the motor alone. Most people haven't felt 300, 350, 400+ hp in a fwd car, all areas where the stock motor will take you. If you want more after the build, save up and do it right. Putting forged pistons in stock block sleeves is stupid to me..You removed one weak point, which one is next? Your sleeves, and sleeves are more expensive than pistons lol, especially if you crack the block etc.
I know you probably want to keep this cheap, but imo you should do it right the first time, using the stock manifold will work, but it'll be garbage ultimately.
Look into ZZP's full turbo kits, s252et, which has very little lag also, you will be much happier.
I know you probably want to keep this cheap, but imo you should do it right the first time, using the stock manifold will work, but it'll be garbage ultimately.
Look into ZZP's full turbo kits, s252et, which has very little lag also, you will be much happier.
03-07-2012, 04:01 PM
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Yup Lag. I am not worried about the turbine housing, I know its quit responsive with the 71 compressor, but with the 76 compressor i been reading its somewhat of a different story. here are some quotes i got from the sr20 people; i got them from there cus there is not much about the gt2876r here.
"The turbine is the limiting factor on the 2871 anyways, so adding a larger compressor (2876) is counter productive." 4xle Zilvia.net
"2876 is too laggy as has been said above. Go with either a 2871 or go to a top feed GT3071R with external 44mm wastegate if you want response and more power than a 2871 can deliver", Seraphim38 Zilvia.net
I know that is SR people and that is why I made the thread to see what lsj people thought about the gt2876r.
On the other topic. Unfortunately E85 for now is not an option; the closest E85 pump is about an hour away and i know i could just store some but just to go get it is quit difficult as well.
Methanol sounds like a better option here...
but What do you think the best set up would be?
"The turbine is the limiting factor on the 2871 anyways, so adding a larger compressor (2876) is counter productive." 4xle Zilvia.net
"2876 is too laggy as has been said above. Go with either a 2871 or go to a top feed GT3071R with external 44mm wastegate if you want response and more power than a 2871 can deliver", Seraphim38 Zilvia.net
I know that is SR people and that is why I made the thread to see what lsj people thought about the gt2876r.
On the other topic. Unfortunately E85 for now is not an option; the closest E85 pump is about an hour away
and i know i could just store some but just to go get it is quit difficult as well.Methanol sounds like a better option here...
but What do you think the best set up would be?
If it was my car, I would run a billet PTE 6262. Full boost by 4500 rpm, and power to 8500 rpm. Only $900 and make over 650hp. The Bullseye (BW copy) S362 ET is another good option. These are both bigger than the current turbo you are looking at, and comparable to a GT35 if you were to go with a dinosaur turbo.
If you want something with a little less power, look into the 50mm billet turbos by PTE. They have some in the 56mm range that would be good for 450-500hp with decent spool.
How much do you want to put up with? Laggy is an ambiguous term. Some people think 4,000 rpm spool is laggy. My drag car doesn't reach full boost until 8,000 rpm without the bottle. It's all relative.
03-07-2012, 05:55 PM
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Methanol is not for a street car, unless you are talking about methanol injection? If so, then it will work out, but I would rather have more boost than compression.
If it was my car, I would run a billet PTE 6262. Full boost by 4500 rpm, and power to 8500 rpm. Only $900 and make over 650hp. The Bullseye (BW copy) S362 ET is another good option. These are both bigger than the current turbo you are looking at, and comparable to a GT35 if you were to go with a dinosaur turbo.
If you want something with a little less power, look into the 50mm billet turbos by PTE. They have some in the 56mm range that would be good for 450-500hp with decent spool.
How much do you want to put up with? Laggy is an ambiguous term. Some people think 4,000 rpm spool is laggy. My drag car doesn't reach full boost until 8,000 rpm without the bottle. It's all relative.
If it was my car, I would run a billet PTE 6262. Full boost by 4500 rpm, and power to 8500 rpm. Only $900 and make over 650hp. The Bullseye (BW copy) S362 ET is another good option. These are both bigger than the current turbo you are looking at, and comparable to a GT35 if you were to go with a dinosaur turbo.
If you want something with a little less power, look into the 50mm billet turbos by PTE. They have some in the 56mm range that would be good for 450-500hp with decent spool.
How much do you want to put up with? Laggy is an ambiguous term. Some people think 4,000 rpm spool is laggy. My drag car doesn't reach full boost until 8,000 rpm without the bottle. It's all relative.
If your drag car is the gsx, thats a whole different ball game haha.
03-07-2012, 06:43 PM
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Yup i was talking about the 4500 rpm lag. i wanna kip my car as street able as possible. I already have the turbo, it came in yesterday. I did not bought it new but almost it has no more than 300 miles. I love the condition. it just looks great and would love to use it, but if it is not good for my application i would rader sell it and get something else affordable but that would go with my expectations. here is a pic from previews owner.
http://i16.photobucket.com/albums/b1...216_234402.jpg
Unfortunately there is another issue the compressor doesn't clear the manifold. Last night i mounted the turbo into manifold and the flanges do not make full contact because the compressor hits the manifold. That is no big deal i could just buy a 1/2 inch t25 flange, double gasket it, and use it as a spacer. I also plan to weld an electrical cutout onto the down pipe so the dp issues will be solve at the weld on moment. What I'm scared of is of the compressor hitting the firewall, I'm going to have to do some measurements and estimates before buying more pieces.
http://i16.photobucket.com/albums/b1...216_234402.jpg
Unfortunately there is another issue the compressor doesn't clear the manifold. Last night i mounted the turbo into manifold and the flanges do not make full contact because the compressor hits the manifold. That is no big deal i could just buy a 1/2 inch t25 flange, double gasket it, and use it as a spacer. I also plan to weld an electrical cutout onto the down pipe so the dp issues will be solve at the weld on moment. What I'm scared of is of the compressor hitting the firewall, I'm going to have to do some measurements and estimates before buying more pieces.
03-07-2012, 06:59 PM
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03-07-2012, 07:16 PM
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. but It is genuine here is the link.Garrett GT2876R (aka GT25/40R) Ball Bearing Turbo : atpturbo.com
I have the garret t25 manifold, here is the other link
GARRETT T25 Flanged CAST Manifold 2005+ 2.2L Ecotec | eBay
ohhh and the a/r is .64
03-07-2012, 07:27 PM
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I changed my mind on the pistons, i think I'm just going to go stock. I have done some research, and I wouldn't like to live one of those horror stories other people have lived, because they did not upgraded their sleeves.
On the lag, that is what my research has told me, not on here but on sr forums, they appear to be the ones with more info about the topic. I would like to hear something from someone that has experience with this turbo, but no one has came across, it all has been from third parties or from personal opinions.
On the lag, that is what my research has told me, not on here but on sr forums, they appear to be the ones with more info about the topic. I would like to hear something from someone that has experience with this turbo, but no one has came across, it all has been from third parties or from personal opinions.
03-08-2012, 08:48 AM
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I really want to avoid that, a wile back i read that it can really damage the frame of the car, and that in case of an accident some issues with insurance companies may arise.
03-08-2012, 08:52 AM
#21
I highly doubt a few whacks with a rubber mallet would have significant effects on your cars safety.
Insurance shouldn't give u **** either. The turbo could easily hit the firewall in an accident. How would they know it wasn't that?
Unless its super obvious. Lol. Like you really went to town on it.
Insurance shouldn't give u **** either. The turbo could easily hit the firewall in an accident. How would they know it wasn't that?
Unless its super obvious. Lol. Like you really went to town on it.
03-08-2012, 11:38 AM
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I highly doubt a few whacks with a rubber mallet would have significant effects on your cars safety.
Insurance shouldn't give u **** either. The turbo could easily hit the firewall in an accident. How would they know it wasn't that?
Unless its super obvious. Lol. Like you really went to town on it.
Insurance shouldn't give u **** either. The turbo could easily hit the firewall in an accident. How would they know it wasn't that?
Unless its super obvious. Lol. Like you really went to town on it.
Looks like i can't get pics to show, but here is a link to the pic folder if u wanna see.
0308120856.jpg picture by Diabolt - Photobucket
Last edited by Diablo; 03-08-2012 at 11:45 AM.
03-08-2012, 04:00 PM
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yup ur right, **** it let the part gathering continue. Lol
here are some pics of the turbo contact with mani.
Looks like i can't get pics to show, but here is a link to the pic folder if u wanna see.
0308120856.jpg picture by Diabolt - Photobucket
here are some pics of the turbo contact with mani.
Looks like i can't get pics to show, but here is a link to the pic folder if u wanna see.
0308120856.jpg picture by Diabolt - Photobucket
btw, just use the last box of codes to post the pics, one that has [IMG]
