preludedude2001

HI,
I'm building a turbo setup for my stock 01 Lude. I want to keep the AC. Spoke with Garrett about 2860vs3071 and they recommend 2860RS w/ 0.64 AR. Any opinions? I just want to be able to drive around and hwy with some extra juice but want to keep some mileage when cruizing on hwy on Sunday.

Does anyone know if I can get the 2860 with a T3 flange? or are they only T2
I want to order a log exh mani, but not sure if the T3 mani will fit a 2860RS.

I'm going for 7lbs, meth inj, FMIC, AEM FI/C w/370 injectors. Any suggestions? BOVs?

Thanks

Hidenplanvew

way to small... do a precision Pt61 or PT6268 T4 are what will make your prelude really flow.... Meth injection is a waste of money and dumb... Just spend the money from the meth for larger injectors like 1000cc... the 370 injectors is a waste of cash. Tial wastegate/ Tial BOV are the best... the set up you have now is going to get you no where and your going to have to spend money on everything again ust to gain any kind of power above 250whp. What I just told you will atleast yield you enuff room for 350 to 400whp.

Dont speak in PSI that isnt correct or the correct way to ask a question because PSI dosent mean crap. Diffrent turbos flow diffrent CFM's so each turbo will produce diffrent WHP on a set PSI. Talk in how much power your looking to make then we can help you out more..

viper_boy403

iTrader: (1)

lol water/meth injection is a waste? not in the least bit, but he doesnt need it on this setup.

You can get 300whp out of a gt2860, but honestly I'd go with the 3071. It will spool a little slower, but you'll have way more potential. I'm running a small T3 on my car thats nearly identical to a 2860 and the response is amazing. Pulls to redline without tapering off.

I agree that 370's are too small though. 440 or larger if you want any more than ~270whp. What are your power goals, anyways?

preludedude2001

HI Viperboy,

My goal is to produce as much as I safely can, engine is stock and fuel supply tends to be limited to 92 octane(but I can always keep some octane boost on hand). That's one reason for meth injection. I also read that it keeps the internals carbon-free, so ensuring stock comp ratio, and the water(flashing to steam) in it helps a little to spool the turbo a little earlier. So, I was thinking around 260whp. I think the stock engine produces around 160whp. A 100hp gain sounds really nice. I just want to be able to bomb around and pull with some of my friends with mustangs, for a few hundred feet. The meth inj sounds like a really good idea, from everything I've read. It also works to raise apparent octane and acts as a fuel substitute, so less demand from my fuel system under boost. Looks like it would be great to be able to inject it into the intake of the turbo(improve the turbo efficiency), but I think that would be ideal on big, low boost engines without intercoolers.

You're running a small T3 in a 5th gen prelude? Were you able to keep the A/C? Or are you racing it? What type of manifold are you using? 2.5 inch exhaust? Do you think I need to have it draw fresh air, or can I just draw at the intake of the turbo?

The thing is I don't want to have too much backpressure from the turbo, so I spoke with Garrett and wanted the 0.82 housing, but they still recommend the 0.63 saying it spools 20% earlier and works on engines up to around 2.4L.

The other guy is right about different turbos acting different, but it really has to do with the backpressure created by the turbo and manifold against the engine exhaust. If the backpressure is lower, engine differential is better and so flow is better and so power is better. I talked of the intake pressure because it does dictate how much compression the cylinder will see and thus how close we are to detonation. Of course there are many factors, but holding them all the same, lower intake pressure, further from detonation. The stock engine is 10 to 1 comp, so I think I have to be careful how much I try to push it. Cold charges and slightly rich will help keep it from blowing up, I hope.

So, does anyone have any experience with the disco potato? Can I get it ordered to have a T3 exhaust flange? Does a 3071 fit in a 5th gen lude while keeping A/C?

Also, does anyone have issue with 2inch charge piping? Under 300hp shouldn't need any more? The car is tight, so smaller is better for fitting. Also, downpipes, should I just buy one from Drag? Or are there better suggestions? 2.5 inch exhaust with larger cat is a must? I think the stock cat will cause backpressure problems(less power). Anyone with experience on this?

Thanks again, I know it was a long set of paragraphs...

viper_boy403

iTrader: (1)

here is my build thread: http://www.************.com/forums/s...d.php?t=301815

replace the *** with "p reludepower", minus the space in "prelude"

I did keep both AC and power steering. Spoolin Performance made my downpipe, so it fit perfectly.

If you're running a 2.5" exhaust, I highly recommend against a cat. If you look at my dyno chart, it caused power to die at 6500rpm, and also caused the turbo to spool slower. I have since removed the cat, and am going to the dyno again. The car pulls hard to redline now, so I'm shooting for 250whp.

I'm also running 91 california crap gas so 92 will be fine. Water/meth will help cool things down, but I dont see it as necessary. people run these engines above 300whp on a good tune and they last for years. I race my car regularly and its been over a year since I boosted it. Still has perfect compression as I discovered yesterday. If you want the extra insurance though, go for it

here is an H22 with a 28rs just to give you an idea: http://dynos.evans-tuning.com/2010/1...whp245tq-8psi/

Hidenplanvew

Back pressure has nothing to do with how many CFM's a turbo flows. Back pressure will effect spool time and up top performance. The size turbo your going to get is going to strugle up high and if ur running no intercooler your just going to have a mass amount of problems even with a good tune. I would run a intercooler and scrap the meth kit, its not worth it at 250whp... You might run into issues with the FRP cracking...

My set up is..
H22
Eagle rods
Aries pistons
LA Sleeves
Rc1200cc
Walbro 255.... (You should get this)
Tial WG/BOV
Crower Stg 1 cams
Small ram Turbo manifold
PT6268
FMIC
Tuned for E85... 675 whp
91 oct 350 whp DD