T61 Bolt on Turbo by Cx Racing

[paradox616]

Looks pretty good in there... I see ya had to slightly mod the heat shield lol. I can't wait till income tax time!

Nice sheepdog prof, I got one too, is yours really quiet? sorry little off topic but i guess i'll wait for videos

is that the bov ? it came with my car, yeah its pretty loud and im not using it till it vents back into the intake system need to get a fitting for it and some hose., slows the car down due to venting measured air.

I didn't have to modify the heatshield, previous owner made a mess of it trying to remove it. i simply painted it with hightemp paint after removing all the surface rust for a cleaner look

ONLY things that need to be modified are
Oil lines
Coolant lines for CT26 (loop them)
inducer tube wont fit nicely over the T61

you will want a new turbo elbow as well.

Its spooling very slowly, 1st gear only builds 1-2psi and in 2-3rd gear 4psi... the controller has no issues adding boost so i think its a wastegate adjustment issue. ill take some video's once its done. It will be a few weeks to months before i get this going at full steam all thats left is a 3 channel ignitor, fuel pump and injectors

I'm not good at driving a manual and filming btw,

 

[carter]

is that the bov ? it came with my car, yeah its pretty loud and im not using it till it vents back into the intake system need to get a fitting for it and some hose., slows the car down due to venting measured air.

I didn't have to modify the heatshield, previous owner made a mess of it trying to remove it. i simply painted it with hightemp paint after removing all the surface rust for a cleaner look

ONLY things that need to be modified are
Oil lines
Coolant lines for CT26 (loop them)
inducer tube wont fit nicely over the T61

you will want a new turbo elbow as well.

Its spooling very slowly, 1st gear only builds 1-2psi and in 2-3rd gear 4psi... the controller has no issues adding boost so i think its a wastegate adjustment issue. ill take some video's once its done. It will be a few weeks to months before i get this going at full steam all thats left is a 3 channel ignitor, fuel pump and injectors

I'm not good at driving a manual and filming btw,

Gotta love what some prev. owners have done lol but that bov is easy to recirculate and the outlet is the same size as the hoses that goes to the according hose. but I'll be around to check back in and see whats going on.

 

[Heavy D]

damn looks good, keep it up, would like to see the videos.

 

[paradox616]

like i said yesterday somethings not right with the actuator, i can only build 1-3psi in 1st.

at 8psi i cannot even hear it spool/doubt its working very hard. i've got a few other cars to work on in the next few days so not sure when ill get a chance to fix the actuator issue (plan to remove it and test at what pressure it actually opens)

935motorsports/stay.tuned did you have any issues like this?


one other thing that isn't bolt on, the oil dipstick will not bolt up to the turbo.

 

[radicalskater]

i have had that turbo in my car for about 4 months now its seems to be firing fine if that helps anyone.

 

[WhtMa71]

^ How many miles have you put on it in that time?

 

[Heavy D]

paradox616, just wondering if the ct26 actuator would fit the new turbo? just wondering to see if that will solve your problem till you find a adjustable, just seeing even tho you guys are busy, just would like to know since this is a very nice mod.

 

[WhtMa71]

It looks like the actuator linkage is adjustable..Or is it just me?..

 

[paradox616]

It looks like the actuator linkage is adjustable..Or is it just me?..

you are correct, if i determine that the actuator opens at 8psi using a pump & pressure gauge then ill fiddle with the linkage, when i pulled it apart initially the wastegate was shut, but how tight is the question, perhaps 1 or 2 turns would correct it. it warrants more testing before i go "fiddling" with anything.

I'm sure you could modify the ct26 waste gate to fit but you'd need to weld a new bracket onto it and maybe extend the linkage? not worth it unless there is no other option, the hole that the linkage connects to on the waste gate flapper arm is a different size as well.

id love some feedback from anyone running this turbo, do they see 8psi on the actuator?

 

[paradox616]

removed my actuator hose and went for a quick drive, turbo spools a little quicker but not great, maybe its just a big turbo? a tune should help, might try adjusting the linkage anyway to see if it makes any difference.

 

[WhtMa71]

Could be just that the turbo is larger. It probably would have been good to test the flappers opening with the elbow off to see how it reacts to boost. With a little compressed air of course. Could be that it's adjusted too far out and reacts to full open a little earlier than it needs to.

 

[IwantMKIII]

Could be just that the turbo is larger. It probably would have been good to test the flappers opening with the elbow off to see how it reacts to boost. With a little compressed air of course. Could be that it's adjusted too far out and reacts to full open a little earlier than it needs to.

Good point, not to mention it is an ebay turbo after-all, its not going to be perfect.

 

[paradox616]

Good point, not to mention it is an ebay turbo after-all, its not going to be perfect.

yeah, i had a fiddle and i get 5psi in first, im thinking my gear ratio has something to do with it ive got a W58 & god knows what gears but they're short! i think with a tune it should spool up a bit better, im going to try and adjust the actuator anyway /test it with boost

 

[IJ.]

You want about half a hole of preload on the actuator rod 2Ducks, If you need a stiffer actuator let me know I have a few different ones here.

 

[paradox616]

You want about half a hole of preload on the actuator rod 2Ducks, If you need a stiffer actuator let me know I have a few different ones here.

What does half a hole of preload mean IJ?

 

[IJ.]

The hole in the actuator rod needs to be adjusted half way before the pin on the flapper arm so you then have to pull the rod against the spring to get it on the rod.

This sets a preload on the spring a bit like shimming a CT26.

If you set it to 0 it will be laggy as the gate will blow open as soon as the turbo goes +

 

[paradox616]

makes sense Thanks for the clarification, wasn't sure which hole you were referring to,

this actuator/linkage was set to +0 which might explain a little!

ill adjust it shortly.

 

[WhtMa71]

Yea IJ clarified what I was trying to say. You got the point though..

 

[IwantMKIII]

IIRC someone sent the turbo in for an inspection a while back? Am i wrong? I really don't feel like reading through 26 pages to find out for sure. I'd like to know the results...

 

[projectpanda]

sooo quick question, are you going to be running this thing all year? like i wanna see how long it lasts on a car thats kinda pushin it