daryl337
08-03-2007, 06:41 PM
ok, first before I go into a parts list, please feel free to offer substitutions based on personal experience with certain products...
What I am shooting for is 500+ HP and around mid-high 400's on pump gas.
I have only seen a couple of people play with the turbo I picked out, all with higher HP results, but a couple were playing with nitrous so I am not expecting to go to the extent that they did.
The turbo I am planning on playing with is a Garrett Gt3582R probably either the .63 or .82 AR turbine, and definately the .70 AR compressor...
Here is a compressor map: http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT35/GT3582R_714568_3.htm
If you can't read a compressor map, go ahead and skip this section due to the fact that you probably will not be able to understand what it is I am asking: What do you guys think of that surge line? would you recommend that I port the compressor housing to help eliminate that surge? I know it isnt too large in retrospect, but I just wanted someone else's opinion. Second question: what do you think of this turbo as an all around turbo for my needs? I personally think that with a flow rate of about 40-55 (I believe to be close to the need for around 500 hp) this turbo keeps a pretty solid efficiency. Now I know that there are other turbos such as t66's with a larger amount of flow, but I feel that they will be more prone to a surge than this motor, as well as a worse spool. Also, ive noticed that this compressor holds a peak efficiency fairly well across the board which is also a plus for me. What are your thoughts? Are there any other turbochargers you would recommend?
Keep in mind that I have already alotted alot of money for this project, so dont be shy in making recommendations.
My internal parts list will include:
A full T-sleeving of the block (I used to work for a machine shop that did block work for AEBS, and can get the sleeves at a cheaper rate)
87mm 8.1:1 compression pistons... probably CP.
Pauter Titanium Rods.
Jun 270 dur. solid lifter camshaft setup
JWT bronze valve guides and JWT stem seals
BC springs, retainers
port/polished head (courtesy of me).
HKS 1.2mm head gasket
Power Enterprises "black metal" main and rod bearings
Now for my bolt ons:
3" apexi N1 exhaust
3" megan racing flow through test pipe/dump pipe
Peak boost top mount manifold with tial wastegate.
godspeed (ebay for the woot) FMIC with piping
Meziere electric water pump (to get rid of that crappy stock water pump)
Greddy oil cooler kit
Greddy intake manifold
Greddy oil pan
Koyo radiator with the necessary electric fans
Deatschwerks 810cc injectors
Walbro 255lph fuel pump (I've seen people double these up... do you think I will require more fuel?)
splitfire DIS-04 system.
nismo/sard/*insert reputable company here* FPR.
*insert BOV type here* (im not picky about what "sound I have"
For engine management I was at a crosswalk between the power FC and AEM with a wideband uego controller as well as a 2 or 3 bar map sensor setup to eliminate this whole MAFS problem.
Now, if you guys are skeptical about my build, let me tell you what I was planning for it.
The reason I dropped the compression ratio that much is not because I wanted to produce large amounts of boost, but because I am going to have a fairly high rev on this motor (probably around 8500-9). Some might ask "then why have such a large turbo if you arent going to boost too high?".. well my answer is simple, I need the efficiency at higher RPM's that big turbo's provide as well as the airflow required for a motor to rev that high. I dont need a whole lot of boost to produce the high torque numbers, I need the revs.
I drove a skip and a hop over to JWT to inquire about the build I was planning and they gave me a few pointers and were sort of skeptical that I would be able to pull off 500hp on pump gas, but they seemed fairly optimistic as well. They assured me that 450+ would be easily attained simply because I wont have to worry about lowering my efficiency at high RPMS because I am dropping my combustion chamber pressures due to going with 8.1:1 comrpession pistons. The nice thing about building something like this is that since my spool will be fairly late in the rpm range, with some proper tuning I should be able to put around with decent mileage... and when I really want to go I just have to shift down and get her into higher RPMs.
Anyways, let me know what you guys think as far as what I have sort of compiled so far.. I know that I had more on my list.. but I left it at work so im sorta outta luck until then.
What I am shooting for is 500+ HP and around mid-high 400's on pump gas.
I have only seen a couple of people play with the turbo I picked out, all with higher HP results, but a couple were playing with nitrous so I am not expecting to go to the extent that they did.
The turbo I am planning on playing with is a Garrett Gt3582R probably either the .63 or .82 AR turbine, and definately the .70 AR compressor...
Here is a compressor map: http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT35/GT3582R_714568_3.htm
If you can't read a compressor map, go ahead and skip this section due to the fact that you probably will not be able to understand what it is I am asking: What do you guys think of that surge line? would you recommend that I port the compressor housing to help eliminate that surge? I know it isnt too large in retrospect, but I just wanted someone else's opinion. Second question: what do you think of this turbo as an all around turbo for my needs? I personally think that with a flow rate of about 40-55 (I believe to be close to the need for around 500 hp) this turbo keeps a pretty solid efficiency. Now I know that there are other turbos such as t66's with a larger amount of flow, but I feel that they will be more prone to a surge than this motor, as well as a worse spool. Also, ive noticed that this compressor holds a peak efficiency fairly well across the board which is also a plus for me. What are your thoughts? Are there any other turbochargers you would recommend?
Keep in mind that I have already alotted alot of money for this project, so dont be shy in making recommendations.
My internal parts list will include:
A full T-sleeving of the block (I used to work for a machine shop that did block work for AEBS, and can get the sleeves at a cheaper rate)
87mm 8.1:1 compression pistons... probably CP.
Pauter Titanium Rods.
Jun 270 dur. solid lifter camshaft setup
JWT bronze valve guides and JWT stem seals
BC springs, retainers
port/polished head (courtesy of me).
HKS 1.2mm head gasket
Power Enterprises "black metal" main and rod bearings
Now for my bolt ons:
3" apexi N1 exhaust
3" megan racing flow through test pipe/dump pipe
Peak boost top mount manifold with tial wastegate.
godspeed (ebay for the woot) FMIC with piping
Meziere electric water pump (to get rid of that crappy stock water pump)
Greddy oil cooler kit
Greddy intake manifold
Greddy oil pan
Koyo radiator with the necessary electric fans
Deatschwerks 810cc injectors
Walbro 255lph fuel pump (I've seen people double these up... do you think I will require more fuel?)
splitfire DIS-04 system.
nismo/sard/*insert reputable company here* FPR.
*insert BOV type here* (im not picky about what "sound I have"
For engine management I was at a crosswalk between the power FC and AEM with a wideband uego controller as well as a 2 or 3 bar map sensor setup to eliminate this whole MAFS problem.
Now, if you guys are skeptical about my build, let me tell you what I was planning for it.
The reason I dropped the compression ratio that much is not because I wanted to produce large amounts of boost, but because I am going to have a fairly high rev on this motor (probably around 8500-9). Some might ask "then why have such a large turbo if you arent going to boost too high?".. well my answer is simple, I need the efficiency at higher RPM's that big turbo's provide as well as the airflow required for a motor to rev that high. I dont need a whole lot of boost to produce the high torque numbers, I need the revs.
I drove a skip and a hop over to JWT to inquire about the build I was planning and they gave me a few pointers and were sort of skeptical that I would be able to pull off 500hp on pump gas, but they seemed fairly optimistic as well. They assured me that 450+ would be easily attained simply because I wont have to worry about lowering my efficiency at high RPMS because I am dropping my combustion chamber pressures due to going with 8.1:1 comrpession pistons. The nice thing about building something like this is that since my spool will be fairly late in the rpm range, with some proper tuning I should be able to put around with decent mileage... and when I really want to go I just have to shift down and get her into higher RPMs.
Anyways, let me know what you guys think as far as what I have sort of compiled so far.. I know that I had more on my list.. but I left it at work so im sorta outta luck until then.