Starting a TT rear mount build and need to start a parts list. My plan is to keep my LS1 motor almost as is. I am aiming for a DD running 4-6psi. I I have 2 precision sc61 ar70 intake, 81 exhaust, BOVs, waste-gates, piping. So now need to make sure I have the rest of the list.... so my questions are... what size injectors (80?) and a moderately priced brand? oil options and fuel pump options? boost controller, 3 bar MAF? Anything I missed?

 

Arun has a good deal on some of the Bosch Motorsport injectors...
http://forums.corvetteforum.com/c5-f...injectors.html

If you're only planning on 6psi, are the .81 turbine housing going to be too big for rear mounts?? You're stock displacement or larger? Current mods?

Don't see any reason for 3 bar sensor unless you plan on going over 15psi in the future. You could stick with a 2 bar. If you end up wanting a 3 bar, I have an extra sensor and harness I can send you for cheap . It's the larger one that has to be mounted.

With only 6psi, I imagine you could get away with only a LPE in tank and KB BAP. Or, ECS and UPP have kits at a decent price and take the guess work out of it.

Superman09 (Jon @ HuronSpeed) can set you up with a Turbosmart or other boost controller.

Really it all comes down to how much $$$ you want to spend on all of this stuff. i.e. manual vs. electronic boost controller, etc.


Good luck on the project!

 

Thanks for the reply. I will be at stock displacement. The .81 i have been told by a few places will be great and SHOULD expect really fast spool and no back pressure. unfortunately I have learned anyone will say that if you are discussing spending money on them. cant trust them as far as I can throw them. I had them on my SRT 10 Ram before so I am trying to use what I have.... i have done business with Huron an was pleased so I will give them a call for sure.

 

I think 80# inj and a 3 bar is overkill for your boost level... but trust me, you will end up running more.
I run a stock pump and KB BAP, 10# boost and 40# inj but with meth. No fuel psi issues at 534WHP
I run a manual controler for now.
Get a turbowerx pump and mount it in the back.
Agree that the turbos may be too big for a rearmount app esp for your boost goal.

 

Yea, I certainly agree that you won't have backpressure issues! Wouldn't hurt to run them since you have them already, but would anticipate a future order for smaller a/r housings. Boost may come in later than you like. Might use STS for turbine housing size reference.

 

[QUOTE=StatmanRN;1583208832]I think 80# inj and a 3 bar is overkill for your boost level... but trust me, you will end up running more.
I run a stock pump and KB BAP, 10# boost and 40# inj but with meth. No fuel psi issues at 534WHP
I run a manual controler for now.
Get a turbowerx pump and mount it in the back.
Agree that the turbos may be too big for a rearmount app esp for your boost goal.[/QUOTE

Are you running a intercooler and meth or just meth? I have concidered a single mount with one of these but one I have been told is too small and two is too big so I am sort of in a pickle. I have tried to trade a guy but the deal fell through. so I wanna try to make what I have work.

 

You have them. Run them.

 

 

I have both. Went for the meth for insurance with the heat here in central Fl. Also, the tune is fairly conservative.

 

I planned on doing this as well.

 

for a TT w/ .81 turbines you will not see boost till the top end of the RPM band, I had .63 and they took forever to spin up. I'm running .38 on the turbine side and I'm hitting boost in the 3.5-4k range and maxing 5# before 5k. If you are running strip only then you might be alright, but a DD as you say will be a 0 fun factor. Also wrap your pipes, jeggs sells an entire kit with silicone sealant spray. I wrapped both headers and pipes with wrap to spare. Those rear turbos run cool, and don't allow for much thermal expansion. I used a blanket too. LOL.

The turbowerx pump will suck oil out of the ground, so 1 with a T off each turbo should be sufficient to return to the engine. Run nothing less than an -8AN hose off each turbo, and a -10 to -12 back to the engine. If you can dump into your timing cover, the valve covers will seep oil badly with that style return. (ask me how I know). Also, how are you planning on getting oil to the turbo's? You need to regulate the pressure as well, the stock pump throws out more oil than they can handle and you'll get leaks.

You shouldn't need anything more than a 60# injectors, but I'd get an 255 in-tank fuel pump. Something about running the stock pump past limitations bothers me, and you will be pushing it with 80#. Better for reliability too.

Meth is a must for good numbers and intake temps. Heat is the enemy. (esp. in Florida)

A single bar will work per my tuner, who is an awesome guy, but a 2 Bar is better and will allow a SD tune. Contact Matt @ FSP. He's actually in Tampa and owns a shop. Best informaiton you will get, and could tune the chloraphyll in a tree. Guy know's his stuff.

I can send you some pics of my STS set-up if you want some inspiration. Just let me know.

 

Thanks for your insite!!! to answer a few questions.... I actually have a .70 compressor. I know its not .63 but I am under a rock in a hard spot... I tried to do a single with one of these and was told that was too small its a 61mm with a .70 compressor and .81 hotside. So I went with TT setup. They are Sport compact series and was TOLD... these would be amazing... we will have to see I guess. I planned on doing a inline oil system or possibly a stand alone. fuel I will be doing a new pump I have a issue with my stock pump so I figured what the hell. Funny enough I met matt this weekend. We had a dyno day there and did a fundraiser. Good guys at FSP. And your right prob could tune the chloraphyll in a tree LMAO.

 

Yeah, Matt is excellent at what he does. That .81 hotside is going to be laggy, and I think you will be unhappy with it as a TT car. The .70 out is good, it's the same thing I've got, provides enough CFM with two. I'd think anything smaller would be choking off the car. (but I'm not an expert) I have 2 .63 hot sides sitting in my garage if you want to pay shipping. I'll sent you pics. They might not fit your turbine blade, but it's not to hard to take measurements. You can also search for a smaller turbine housing, you want to maximize that pressure.

I want to do the same with the oil, the issue I'm running into is space and gain vs. cost. I really like the dry sump tanks for racing, my concerns would be oil break down, heat, and volume. It's easier and cheaper to run a big turbowerx pump back to the engine. Since you dont have that scavenge plate to fit on the sending unit, getting oil to the turbos will be fun for you. STS will sell them if you call tho.

Grab that Walborro 255 and throw it in your tank. Give you an excuse to drive the crap out of the car to drain the tank too. The total install took me about 2-3 hours, and I was moving slow.

Good luck with your build, not a lot of remote turbo guys on here. Glad to feel part of the club.

 

I would like to check out your .63. I have been looking into different pipe sizing to maximize my potential if anyone has any input. I have been reading that 2.25 piping is producing better results

 

How many amp is you BAP also found this link on ls1

http://ls1tech.com/forums/forced-ind...stem-qs-2.html

 

http://www.flickr.com/photos/7326786...7629258865837/

Here's my turbo. The hot side is what i replaced. So the one in the picture is the one I have lying around.

 

sweet I will let you know .

 

does anyone know about an oil filter sandwich plate? can this be a good alternative to tapping into the engine? I started engineering a stand alone oil system and it makes everything so complicated

 

Not sure what the BAP draws. Ill see if I can find it in the directions. I plan on a Racetronix harness and upgraded pump in stage two.
If I remember correctly there was a plug to tap the oil feed near the filter.

 

I am going to continue trying to engineer a stand alone oil system until i am sick of it lol. I ran into a wall though today when I went to get some parts I had at a friends garage.... I had two TIAL 50mm BOV's and two TIAL wastegates i think 44mm, but now I only have one of each. So my question is.... should I run 2 wastegates or is one good/better? I have read that using one will keep the turbos in sync. easier/better. If I run one should I sell the one I have and get a bigger one?