Performance torque converters?

[Car Cannibal]

Hit us back later on of it's the same size as 1Cleangsx and then did the Spragless mod cost more?

6466 is hard to stall up on any 2.0L even if twin scroll and if the converter is like the 8" Sinister it's still hard. 2.3L with high compression and if FTC stator mods that could definitely work.

 

[awd4g63turbo]

Hit us back later on of it's the same size as 1Cleangsx and then did the Spragless mod cost more?

6466 is hard to stall up on any 2.0L even if twin scroll and if the converter is like the 8" Sinister it's still hard. 2.3L with high compression and if FTC stator mods that could definitely work.

At this point, we are hoping for the best. The car is already setup for nitrous, and we have been using it to stall the past year. We also may go 2.3 over the winter ...

 

[awd4g63turbo]

They received the converter Monday, just got the message it was finished already and should be shipped out today..

 

[awd4g63turbo]

Converter arrived today.
Pics are beside a ipt restall converter

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[CrackedDSM]

Converter arrived today.
Pics are beside a ipt restall converter

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Are you gonna have to double up on the flexplates? It looks like it's not gonna fully seat into the pump or bolt up to the flexplate properly because it's more shallow. Maybe my eyes are playing tricks on me.

 

[Galant665]

Have three 1g auto cars. Found a Sinister nitrous converter near new. Using that on one. Another using a stock restall no idea who made it. Someplace near Ontario Ca. Works well. Little loose in the midrange can see it on the dyno. But footbrakes 10 psi like clockwork with an FP black. 530 tq at 3200 flashing in 3rd on Dyno run. Have another restall stock I’ve never used. It’s for backup.

 

[awd4g63turbo]

Are you gonna have to double up on the flexplates? It looks like it's not gonna fully seat into the pump or bolt up to the flexplate properly because it's more shallow. Maybe my eyes are playing tricks on me.

I had to do a quick check also...

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[CrackedDSM]

I had to do a quick check also...

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Damn the eyes are deceiving. Lol. Good stuff though.

 

[awd4g63turbo]

Finally got the converter in a few nights ago. Today we made a few trips down the road today to check fluids and make sure everything is working correctly. Everything looked good so we decided to see if this thing would actually stall up without using the nitrous.
Rolling into the throttle it felt like it almost instantly went to 4500 rpm where the Dynatek was set for the 2 step. Bounced off the limiter it started building boost and creeping forward (cold brakes/vacuum pump not on).
I have the Forced Four shift box to stall up in 2nd gear, and noticed it didn't shift up when stalling up like it was supposed to. Went to grab laptop to check over some things, but it died while I left it on in shop months ago, and it said it needed a few hrs for me to be able to log back in. So I decided to just shift the car into 2nd gear myself till I can see what was going on with the shift box.
Car went to 4500rpm easily, and in what felt like less than 2 seconds, it had built @ 14-15psi.
I was hoping to get a actual log of everything so I can give exact boost and how long it takes to get there, but i can say...things look promising. This is with the same tune i had used on the car while using nitrous to stall. Because of the laptop issues, i couldn't make any changes. I hope to have some actual results logged soon as I can get back into my laptop, and then some passes after getting a new alignment on car after changing some suspension parts.

 

[awd4g63turbo]

Didn't have much time, but was able to get a quick log done.
Hitting 13.5 psi in just over 2 seconds. Playing with the timing i should be able to get more boost out of it if needed.
Next on list is getting a new wideband sensor as this one seems to have went bad since it's been sitting

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[Brandon Mau]

Didn't have much time, but was able to get a quick log done.
Hitting 13.5 psi in just over 2 seconds. Playing with the timing i should be able to get more boost out of it if needed.
Next on list is getting a new wideband sensor as this one seems to have went bad since it's been sitting

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Pretty interested in seeing how this pans out. I read through most of this thread but Noonen set the course in the phoenix for what is. They worked the design off of Sinister speed since they sold the business in July of 2019 which is when I went to the JB 1G precision setup. Noonen went bottom 8's on one of these and Tony Marx I know used one for the tail end of 25' season and went low 8's. With that said they seem to hold the power well and the flash off the brake release is what I always like about the original sinister speeds. I'll have to get Kevin on one of these for your old car (I'm the guy who was tuning when it blew up) but to my defense I wasn't done and told him to NOT go WOT until the fuel pump was upgraded hahaha. Live and learn.

 

[awd4g63turbo]

Pretty interested in seeing how this pans out. I read through most of this thread but Noonen set the course in the phoenix for what is. They worked the design off of Sinister speed since they sold the business in July of 2019 which is when I went to the JB 1G precision setup. Noonen went bottom 8's on one of these and Tony Marx I know used one for the tail end of 25' season and went low 8's. With that said they seem to hold the power well and the flash off the brake release is what I always like about the original sinister speeds. I'll have to get Kevin on one of these for your old car (I'm the guy who was tuning when it blew up) but to my defense I wasn't done and told him to NOT go WOT until the fuel pump was upgraded hahaha. Live and learn.

Alignment is scheduled for tomorrow afternoon, then hopefully we will get some testing done. Sucks that Fayetteville shut down bc they were a lot better track than our local 1/4 mile track (Kinston), but we still have Jacksonville and a bunch of 1/8 miles tracks.
And yea, Kevin said it wasn't your fault . When he told me he was on 45 psi, I told him he was prob past where he needed to be on a Eagle rod .
That motor had already been together for 14 yrs and was always in the low/mid 30 psi range.
And that's where we are at on this car also. We are at 34psi now on the same eagle/je piston combo...and I don't wanna go much higher. It went 10.1 @ 142 with a 1.77 60ft with the baffles converter, so we hoping for 9.7-9.8 in the 1/4 and just enjoy the car. Not fast enough to be really competitive, but in a good spot to not have to worry about breaking the car and always working on it.

 

[Car Cannibal]

Looks like we have a winner, it's clearly the Sinister converter and is plenty for 99% of us, price is right and turn around. I like the spragless welded aspect and then it's plenty small to spool these new and bigger turbos without juice.

They said they need your core though, that's the long term issue as stock cores dry up and dudes sold there's if they went to the Precision thinking they'll never need it.

All that's gonna happen at low 8s with one of these is it starts to slip more but if you 60ft you can argue it's a trade for the better. Thanks for the update.

 

[Brandon Mau]

Looks like we have a winner, it's clearly the Sinister converter and is plenty for 99% of us, price is right and turn around. I like the spragless welded aspect and then it's plenty small to spool these new and bigger turbos without juice.

They said they need your core though, that's the long term issue as stock cores dry up and dudes sold there's if they went to the Precision thinking they'll never need it.

All that's gonna happen at low 8s with one of these is it starts to slip more but if you 60ft you can argue it's a trade for the better. Thanks for the update.

That’s about right, the only thing I wish was different is a billet backplate to accommodate 8 bolts instead of the factory 4. Outside of checking that religiously on something high hp FTC is the new golden ticket for the 1G autos. I should probably reach out to them about a 2G version to fill the gap for now. Circle D is not making a run anytime soon from a conversation had at SEMA. Precisions rarely come up for sale, IPT I haven’t seen anything bad throughout all the years with breaking.

 

[Dbisk87]

That’s about right, the only thing I wish was different is a billet backplate to accommodate 8 bolts instead of the factory 4. Outside of checking that religiously on something high hp FTC is the new golden ticket for the 1G autos. I should probably reach out to them about a 2G version to fill the gap for now. Circle D is not making a run anytime soon from a conversation had at SEMA. Precisions rarely come up for sale, IPT I haven’t seen anything bad throughout all the years with breaking.

Definitely interested if they can do a 2g version for sure. What was the cost in all?

 

[Brandon Mau]

Definitely interested if they can do a 2g version for sure. What was the cost in all?

It’s around $950 for a 1G with your core to work with. A 2G variation should be the same.

 

[1cleangsx]

Mine was around $870 out the door with a supplied core, I won’t have any results until late spring/summer, but I sure am excited

 

[awd4g63turbo]

I also reached back out to them bc i have another converter i will be sending them. I asked if I sent my kiggly flexplate in with the converter, could they add the extra 4 bolt hole to make it accommodate all 8 in the kiggly plate, and they said they weren't gonna offer that option at this time.

 

[1fastcolt]

I also reached back out to them bc i have another converter i will be sending them. I asked if I sent my kiggly flexplate in with the converter, could they add the extra 4 bolt hole to make it accommodate all 8 in the kiggly plate, and they said they weren't gonna offer that option at this time.

well they better hurry and get that option implemented soon cause im sure there are alot who want the 8 over 4 bolts.

Also were still on the Florida Torque Converter place correct?

mine is a ipt restall but I cant get it over 2200 rpms.. just starting to work on the tune to see if we can get that issue fixed.. if not i will be in need of a diff converter.. so im loving the info on this thread.

 

[Car Cannibal]

We tack weld a tab on each converter bolt, it's not going anywhere.

Since they reverse engineered the Sinister 1g they should get their 2g and do the same because the Dsm converter business is a road with few lanes.

 

[Brandon Mau]

well they better hurry and get that option implemented soon cause im sure there are alot who want the 8 over 4 bolts.

Also were still on the Florida Torque Converter place correct?

mine is a ipt restall but I cant get it over 2200 rpms.. just starting to work on the tune to see if we can get that issue fixed.. if not i will be in need of a diff converter.. so im loving the info on this thread.

I’ve messed with a couple IPT cars, they all needed some NOS to spool up on FP black- zero size turbos. It can 100% be achieved without but it’s going to take hours tweaking cam gears, timing table and afrs to find the sweet spot. You can contact Jon and tell him you need yours loosened up some down low and he would probably modify the stator to suit. That’s the biggest catch is finding what works down low without being extremely loose up top.

I’m not sure what way we’re talking in this thread as far as usage goes but if we’re talking stalling without NOS I’ll assume drag sprinkled with some normal cruising. I could stall my old sinister c2 up with a 35-50 shot almost instant. My precision number 8 is the same on E85 and this is on a 6785 sized turbo.

 

[awd4g63turbo]

Finally got a chance to take the car out for a test pass last night in Mexico. Turned the boost down a little bit and lowered the 2 step since we haven't made a pass in the last 3-4 months so I could go over everything.
I knew the rd was gonna be bad bc we just had snow last week and the road had been covered with salt also.
Car went up on the converter great, spun a little on the launch, and made a pass. Issue is, the converter is too loose. The rpms only dropped @ 80 rpm between both shifts. Honestly it sounded like it was a 1 speed transmission the entire time until I looked at the log. Next step is to throw some different fluid in it to see if it will tighten any, if not I will have to send it back in to see if they can tighten it up some. The car did make it's fastest pass on the street on the pass though, even though he let out early.
Will get the fluid changed this weekend and see how it goes from there.

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[Brandon Mau]

That's pretty solid results. The no drop on shifts does sound a little concerning though, maybe something broke internally on the converter during shipping?

 

[TerminalTalon]

Sounds like a suped up cvt.

 

[awd4g63turbo]

That's pretty solid results. The no drop on shifts does sound a little concerning though, maybe something broke internally on the converter during shipping?

It shift through every gear fine manually shift and just normal driving conditions, only happens in wot/high rpm situations.
This was the first/only full pass we have done on the car yet. Imma turn the boost down to low 20s psi and see if it does the same thing. Prob go ahead and go with thicker fluid also. If that doesn't work, we will just have it tighten up some and hopefully it won't lose the ability to stall up without the nitrous.