Rebuilding Ty #284

[BMFB]

Re: Rebuilding Ty #284

Noise was a thrust bearing. builder thinks it was caused by a balooned TC


Well, I have taken my TC to Phils, and they inspected it and said that it was fine, but that i could have an issue with my front pump. After an extensive talk with my builder, he is 100% positive upon inspection of the motor, that it was nothing internal that cause the thrust bearing to go out. With this in mind I see to only have 1 option, which is to pull the trans and have it rebuilt. I got a quote from phils for 1050, and if i want to go to a 5 gear planetary, 1200. Which, isn't to bad for a performance trans with a warranty. he said he had a turb around time of about 4 to 5 days, so I'm gonna take the trans out this weekend and have it run out there next monday.

I took the heads in but no word on if they are usable or not, I was gonna call tomorrow afternoon.

 

[Beavis]

Re: Rebuilding Ty #284

Don't let them talk you into a shift kit. You don't need it, the stock vb is good to go. Since you are not going for an all out build, I would suggest the best clutches, bands, steels, and the Beast sunshell. That should do you just fine. The rest can stay stock.

 

[BMFB]

Re: Rebuilding Ty #284

Well, it seems I have some thinking to do.

I need to get a TC, I've been thinking about getting a nice one, or go the cheap route and get a new covette converter from a member on here who's selling reasonible. I was thinking about swapping the trans out and going another way, such as the 4l80, or Th400 route, but I came to the conclusion that I'm not making enough power to really justify going that way. The 4l80 is expencive no matter how you do it, its gonna be at least 2 grand, even when your using a junk trans and converter. a TH400 is great if your making the power and just driving it on the track, but I don;t think I'm making enough to do that.
My other option is to go with a 700r rebuild from say rossler, theres a few guys on here running their 700's in the 10's on his trannies, and they're about 2500 bucks with a full stage 3 setup and the 'super sprag' forged in hell, by the devel himself.

with all of that being said, I still have a fully functional 700r4, I havn;t blown it yet, but I have a feeling i will. I can do it now or do it when it goes. I can afford to do it now, but it seems like it might be a bit extreme.

My other thoughts go along with the motor. let me start with the full build to date. Scat crank, probe 8.7:1 forged pistons, h beam rods, arp bolts though out, l-35 heads, port matched intake, walbro pump, alky control, walbro pump, code 59.

I am trying to get my hands on a 20 g turbo, prefer 12cm, but I can make a 14 spool just fine I think. I am also thinking of either going with a comp 412 cam, or at least a set of 1.6 rockers to healp it make use of the new heads, and the flow they make.

My thoughts are that if I can get a 412 cam, and a 20g, it will help my truck make power a bit higher in the rpm band, which will help me with the issues I'm having with all of the TC's I look at, and the high stall i'm stuck with. By the way, every TC shop i;ve talked to tells be that their stalls are rated as flash, and that brake stalling WILL BE, without a doubt, lower. I talked to precision today and they told me a 2800 stall that they sell would brake stall around 2400, and I told them about the ride I took in bevis's truck, which had that vary converter in it from them and stalled at 3600. they told me that that was impossible, and must have been a 4k stall.

so, in conclusion, I'm a bit lost. I can leave the cam, put the cheaper converter in it (stock vette) and not be to bad, hell, I can even get a cam, and the turbo and converter for about 600 bucks, and that would prolly work pretty well together. but then the thought of adding 3500 onto that for a trans is spooky. I kinda wanna do the cheaper 600 dollar route and hope it lasts teh summer and attack it next winter, maybe in the process scoring some parts. Hopefully this 16 pass electric cooler can keep it going if i take it easy...

any thoughts?

 

[Beavis]

Re: Rebuilding Ty #284

Ill sell ya my old 700 to use as a core to rebuild. It started to slip a little and the shifts were just starting to soften up slightly. Who did you talk to at PI? Your best bet is to talk to the owner. He is the one that got mine straight after Vicki and I had some miss communication on stall speeds.....

Hell give them my name and they can pull up what they gave me.....or 269428-5lt1 is my part #.

Alot of people forget how much torque these little motors make, and they always seem to underestimate that. Tell them it's makes around 500# of torque or more when the boost goes up.

 

[BMFB]

Re: Rebuilding Ty #284

I'll have to talk to you about that core, also about that TC we had talked about.

Vicky was the one I talked with. I told her I was making 650 peak at about 3400rpm, which might be a bit on the dream side, but I figured better safe than sorry, she said she had a 2400rpm stall, but recommended the 2800 with a single disk lockup for 808 out the door, i kinda am thinking the 2400 myself, although, I'm not a pro. I did however watch a 2800 stall get pushed 800rpm past its flash...which she said was impossible...

 

[Beavis]

Re: Rebuilding Ty #284

I'll have to talk to you about that core, also about that TC we had talked about.

Vicky was the one I talked with. I told her I was making 650 peak at about 3400rpm, which might be a bit on the dream side, but I figured better safe than sorry, she said she had a 2400rpm stall, but recommended the 2800 with a single disk lockup for 808 out the door, i kinda am thinking the 2400 myself, although, I'm not a pro. I did however watch a 2800 stall get pushed 800rpm past its flash...which she said was impossible...

She was the one i talked too and placed my order with. That is the reason i had to pull it back out and send it to get re-stalled. I told her in the begining I wanted a 3000, she did it to 3600. Was horribale to drive, called them talk to her husband (the owner can't remember his name) he said pull it and send it back. Thats when it was adjusted to 2800. You saw and felt what that is like on a stock motor with no real tune. I was told by a couple of tc biulders that when more power is added it will stall higher than rated. Not sure why she would say that cause I believe she said it also or it could of been her husband (i wish i could remember his name)......

 

[BMFB]

The new hope

The new hope

Heads are done, and somehow not cracked , pretty good considering that they were totally f'd and pulled off a motor with no intake thats been sitting next to a school bus for most of my life. Only problem is I'm gonna have to pull them back apart to replace the springs with some ones that will work for the comp 412 cam I just bought off a member here.

I'm not sure of the rpm band that the cam is truly good for, summit says 1500-4500, which sounds pretty stock, but with alot more lift, I was thinking of going to a 1.6 rocker, but I don;t think I'll get much more out of it with unported l-35's.

I decided I'm going to hold off on the tranny rebuild and super TC until this winter, I'm hoping the tranny will hold up until then. I'm hoping I can keep enough heat off of it to keep it together, autox is gonna destroy it...

The crank machined and the blocks ready to put back together though, I was surprised the crank was ok, I figured it was gonna be screwed and need to be replaced. said I could have it by the first week of may if I could get him the cam in time.

I'm in fear I'm going to run out of injector, I know that at about 18 psi on the build I just had that I was at about 142% injector duty cycle. I've read on here that once your at 90 you need new injectors, although I never had a problem with leaning out ever, it still is spooky. These heads and cam are gonna breath a bit better I think. I'm kinda hoping that i can compensated with alky, but we shall see.

This beings me to my next issue, which is a turbo. I know that with the work I've done the motor is deserving of a larger one. I think the 20g can do everything I need to do, and still spool quickly. qbnkiller had some really good advice, but finding a turbo like what he runs is about 3 times the price of a 20g, and I think I will spend the summer trying to find one like what he was talking about.

I decided that when my trans going out I;ll have it rebuilt by rossler, as they seem to be the only people in america within driving distance that can rebuild it to do what I wanna do. as far as a good tc, I have no idea what to do, everyone has huge stall converters, 3200 brake stall is way to high, and that seems to be the lowest anyone has, people run the 2800s and still push that high (or higher) but for now, a vette converter is in order I think.

The solution to the TC problem is to raise my engines powerband, but I would really need some good rods to do that, and a good 4 bolt block, as well as a crazy turbo, cam, and fuel system. I think I'll stay below 5k for now...

 

[dgoodhue]

Re: The new hope

Re: The new hope

I'm not sure of the rpm band that the cam is truly good for, summit says 1500-4500, which sounds pretty stock, but with alot more lift, I was thinking of going to a 1.6 rocker, but I don;t think I'll get much more out of it with unported l-35's.

It has a lot more lift and duration. Boost will change the rpm range of a motor, you should atleast 5000rpm (my guess would be 5200-5500)

I'm in fear I'm going to run out of injector, I know that at about 18 psi on the build I just had that I was at about 142% injector duty cycle....

You can increase your fuel pressure to help get the duty cycle down. Since it seems like you want to upgade your turbo, I would get some 60# injectors if you can afford it. It will save time tuning in the future.

 

[BMFB]

Re: Rebuilding Ty #284

I forget, can i change my shift points with Code59 or is that something inside the trans?

It does look as though a upgrade on injectors may be happening in the near future, Like I said I wasn;t maxed out before, but with the addition of .1000 lift and a few degrees of duration coupled with better flowing heads and a turbo, it might just need some more fuel.

 

[dgoodhue]

Re: Rebuilding Ty #284

I forget, can i change my shift points with Code59 or is that something inside the trans?

For the stock trans, its in the transmission governor. As you make more hp/tq, the rpm will shift upward a little.

 

[TYTILIDIE]

Re: Rebuilding Ty #284

Im not sure if you guys know this but, giving dream numbers or even guesses will not get you an accurate stall. I used to think, oh yeah sure stall is stall dont give me that but, its true. I ordered a 3600 stall converter for a truck I have been working on. When the builder asked me for numbers, I guessed and said 400tq at around 4k. I got it back, installed it and we got 2400rpm and 0 lbs of boost. I gave him those numbers from which he used to look at his chart. He said according to the numbers I gave him we were producing 225hp and 300tq. He told me he can restall it so I said go for it. We got it back and re-installed it and guess what, spot on stall speed. We launched the truck at 10psi 3650 RPM.

So dream numbers and guesses really wont get your far. For your build, you are no where close to 650tq. No offense or anything.

 

[BMFB]

Re: Rebuilding Ty #284

I'm really not sure what I'm going to make for power, but the 600ish is what other people said I would i could be making at the crank when i'm done, and it seems possible from what Ive seen on here. l-35, 412 cam, forged pistions with a bit higher compression that stock, port matched intake, 20g at 20+psi, tuned, with alky.

but for stall I agree, it seems like its a crap shoot

 

[TYTILIDIE]

Re: Rebuilding Ty #284

Yeah with out real life numbers it will be what it is, a guess, which could make or break you. I have a 20g on the wifes ty and we have a 2800 9/11. For whatever reason, when we launch at 10psi it will get all the way up to 3600. It will launch VERY hard though and spools super fast. I cut a 1.7 60' regularly.

 

[BMFB]

Re: Rebuilding Ty #284

I watched beavis's truck do the same thing on a precision converter, 2800 stall pushed all the way up to 3600, what kinda flash stall does yours do, and how is it on the highway?

 

[TYTILIDIE]

Re: Rebuilding Ty #284

By flash stall, if you mean when when I initially give it gas, it will go to about 3k. On the highway I have to downshift to 3rd but it will still pull good. At highway cruise, 75mph, I am at 2600RPM. When my wife drives for a full tank of gas it gets about 14-16mpg. When I drive its get 12-14mpg. That is in town. I have never checked highway mpg.

 

[Beavis]

Re: Rebuilding Ty #284

On the highway it should be the same, the converter is locked. It shouldn't be slipping or coupling when locked in cruise mode. Mine feels alittle different because of the gear ratio change in forth on an 80 vs 700.

 

[TYTILIDIE]

Re: Rebuilding Ty #284

On the highway it should be the same, the converter is locked. It shouldn't be slipping or coupling when locked in cruise mode. Mine feels alittle different because of the gear ratio change in forth on an 80 vs 700.

I'm not sure what you mean. All I can say is ours feels pretty good I think.

 

[Beavis]

Re: Rebuilding Ty #284

He asked how it was on the highway, I gave my input. They should all feel basicly the same on the highway.

 

[BMFB]

Re: Rebuilding Ty #284

thats a good flash stall for what i'm doing, its so weird, ever TC guy I talk to says its impossible to have your brake torque be higher than your flash, but every truck I look at proves otherwise. I don;t want a super high brake stall, but i still want a somewhat high flash, 3k-3.2k is right about prefect, maybe Ill just have to live with the crazy higher stall on the launch :roll:

 

[TYTILIDIE]

Re: Rebuilding Ty #284

maybe Ill just have to live with the crazy higher stall on the launch :roll:

I don't mind it personally. If I feel like spinning all four I launch with 10+, if I need to take care of business I can cut 1.7 60' with 2-5psi.