jdbaugh1

iTrader: (1)

I'm close to sealing the deal on a used harrop TVS1320 and was wondering if anyone here with an L61 is running one and what your thoughts are.

riceburner

iTrader: (66)

Some do and it seems to yield positive results.

blueLNFftw

iTrader: (16)

Hope you do not have a 05 or 06.

Ukchilll

yes i run one with vx220
makes around 350 constant hp but does suffer with heat issues probably because of the engine being in the rear

it has made 380 hp peak power WITH COOL INLET TEMPS
running a 3.1 pulley

jdbaugh1

iTrader: (1)

I do have an 06. Why do you say that?

Slowbalt2000

iTrader: (1)

because trifecta doesnt tune 06-06 cobalts anymore

jdbaugh1

iTrader: (1)

What heat exchangers are you 2 running?

I am only really shooting for around 300 whp when I get built. I wouldn't think I would have heat problems running it that easy? Is there a bigger pulley available for it?

Am I crazy to think I can run this de-tuned (highly retarded timing) before I go built?

jdbaugh1

iTrader: (1)

I have been a long time customer with Trifecta. I have already spoke with them to make sure they would get me running right again. When did this become a thing?

blueLNFftw

iTrader: (16)

A few weeks ago.

jdbaugh1

iTrader: (1)

Well that sucks. Has anyone here done an ECM swap so they can have something that is supported?

blueLNFftw

iTrader: (16)

You can swap to an 07 2.2 harness and PCM.

Slowbalt2000

iTrader: (1)

you have to swap the head too

everyone says "yeah you can do this"

theoretically it will work but ive never seen it done.

jdbaugh1

iTrader: (1)

Is that pretty involved? Is there a thread somewhere on this?

jdbaugh1

iTrader: (1)

Because of the cam sensor?

Slowbalt2000

iTrader: (1)

yeah. i dont think theres a thread on it because i dont think its ever been done. I know i could do it but it comes down to trial and error when little **** goes wrong because no one will be able to help you. I have an LE5 swapped into my l61 car, but it was originally 07. Idk if the 05-06 bcm/internal car electronics are the same or not.

blueLNFftw

iTrader: (16)

Maybe he can swap to LSJ stuff?

jdbaugh1

iTrader: (1)

It's looking like my best bet is going to be going built and installing TVS all in one shot. It is going to hurt the bank but I would rather do that then have to fool around with swapping ECMs if I can get away with it.

To build the bottom end do I need any special tools or fabrication? Is it easiest just to go stock bore? Do I just swap the parts out or is it more involved than that?

What all do I need?
-Valve springs
-Head studs?
-Con rods
-Pistons

Anything else?

Slowbalt2000

iTrader: (1)

if you dont have experience building an engine id say have a machine shop do it.

Slowbalt2000

iTrader: (1)

https://www.cobaltss.net/forums/2-2l...thread-208355/

jdbaugh1

iTrader: (1)

No faith man. I'm never going to get any experience building an engine if I let a machine shop do it.

Slowbalt2000

iTrader: (1)

well definitely do a lot of research on what you need and what it takes before jumping into it. look through that thread i posted, maybe take a class at community college.

expect to be buying a lot of tools

07blackg5

iTrader: (8)

I'm not understanding what you mean here. How does building the engine remove the need to swap ecm? or am I misunderstanding what you mean?

Slowbalt2000

iTrader: (1)

i kinda wondered that too

07blackg5

iTrader: (8)

I saw in your other thread that you are currently m62. Did trifecta originally tune you? You may be able to talk them into re-tuning, but that would be the first step. You are dead in the water without lining up a tune or exploring ecu swap/standalone options

blueLNFftw

iTrader: (16)

He is talking about multiple things at once now that he discovered his tuner no longer supports his car.