TE-61 then what?

[Sleeper-6]

Just out of curiousity, Where would you go after a TE-61. I know I'm not even close to the limit of mine, but I was wondering when I eventually get there what would be the next step up on the turbo food chain. How would a BB-70 or 72 act with a 3400-3600 RPM converter

 

[jetmech]

You could upgrade that turbo to a pt-67

 

[c&cgn]

Once you rip off a few 11.0's or 10.x's then you may want to think about upgrading. At that point you'll have to decide how fast you really wanna go.

FWIW, I went from a PTE52 to a TE45A and it's a pretty big jump.

 

[tyrod]

Originally posted by Sleeper-6
Just out of curiousity, Where would you go after a TE-61. I know I'm not even close to the limit of mine, but I was wondering when I eventually get there what would be the next step up on the turbo food chain. How would a BB-70 or 72 act with a 3400-3600 RPM converter

S-6, just out of curiosity, in your sig you list a big neck int. Is that the stocker with the big neck? If so with the other parts you already have find a better int. That 61 will scream if you tune tight and turn up the boost. I havent run a 70's turbo but I dont think that int ( if its a stocker with the large neck) will let those big boys breathe. I realize this wasnt your question but there is a lot of GO between low 20's and high 20's with your turbo.

 

[Sleeper-6]

I hear ya. I do believe that my stock IC is the bottleneck in my current combo. I have a post in General Tech going about what hardware I should replace next. I'm stuck between the proper stall converter and an aftermarket IC.
I do plan on adding alky injection sometime this winter, so that will let me crank the boost into the sweet spot of my turbo.

Don't worrey, I diddn't plan on bolting a 70 series up to my current combo. By the time I get arount to that I will have both a converter and real IC. Prob should girdle the bottom end too. I was more or less thinking if I put a 3400-3600 stall comverter in it now, would I still be able to keep the same converter with a ball bearing 70 series. I hate doing things twice, especially expensive stuff.

 

[tim87tr]

Consider 20 row stock loc IC, progressive alky running methanol, slicks, 22 to 24 lb boost, track time and 10 lb launch on good tune, and you could have the numbers you want.

 

[trading t/a]

May wanna think about the fuel system after the 61. A double pumper may cut it, but you're gonna be getting close to the max volume of fuel the 3/8 line can send the injectors when you go big turbo and high boost!

As for the converter I'm using a CPT-65BB with a restalled D5 for now and even with an .82 housing it still spools the turbo fairly well. 3200/3400 would be plenty stall for 66-70BB turbo

 

[tyrod]

Originally posted by tim87tr
Consider 20 row stock loc IC, progressive alky running methanol, slicks, 22 to 24 lb boost, track time and 10 lb launch on good tune, and you could have the numbers you want.

Tim, couldnt help but comment on your times in your sig. Your about 3lbs. from 6.90's/100mph=10.99 quarter with good weather. That 61 will do it with ease. Turn up the boost.

 

[tyrod]

Originally posted by Sleeper-6
I hear ya. I do believe that my stock IC is the bottleneck in my current combo. I have a post in General Tech going about what hardware I should replace next. I'm stuck between the proper stall converter and an aftermarket IC.
I do plan on adding alky injection sometime this winter, so that will let me crank the boost into the sweet spot of my turbo.

Don't worrey, I diddn't plan on bolting a 70 series up to my current combo. By the time I get arount to that I will have both a converter and real IC. Prob should girdle the bottom end too. I was more or less thinking if I put a 3400-3600 stall comverter in it now, would I still be able to keep the same converter with a ball bearing 70 series. I hate doing things twice, especially expensive stuff.

Definately get the int. first. I have read over the years that stock core was only rated 350 cfm. I have heard of scattered mid and low 11 runs but why not run those times with less boost and air charge heat/risk? I have a red stripe 2800 on mine right now. THe .85 and it dont g-ha when it comes to kickdowns without a second or two of spool up. I can boost as much as anybody on the line. It leaves and builds boost quickly on takeoff. GM High Tech took "old gray" to the track and swapped stock for stretch and picked up 3or 4 lbs without any other changes using a 60-1bb. Spool up was noticebly quicker.