Spool up Time 67/71

[slo-joe55]

Hey Guys,

Just like to get some feed back from the buick community on spooling time between the 67HPQH Billet and the 71HPQH Billet. All things being equal if the car is setup properly (right convertor, etc.) to run above mentioned turbos would their be a noticable differents in spool time between the two? I hope i stated that correctly.

 

[Dusty Bradford]

Hey Guys,

Just like to get some feed back from the buick community on spooling time between the 67HPQH Billet and the 71HPQH Billet. All things being equal if the car is setup properly (right convertor, etc.) to run above mentioned turbos would their be a noticable differents in spool time between the two? I hope i stated that correctly.

Yes there will be a noticeable difference.

Setting a car up properly includes choosing the right size turbo. If you don't intend to run bottom nine's, the 71 is too big.

 

[slo-joe55]

Dusty,

Thanks for the reply.

 

[slo-joe55]

Dusty,

Orginally when this engine (DLS power plant) and trans package was put together the turbo to make this thing work was the PT70gtq. So what do you think would be the best replacement turbo now?

 

[slo-joe55]

Dusty,

Forgot: one reason I was leaning towards the 67 or 71 is because the convertor is a 3800 n/l 9" and the motor is 231cu.in. Open for suggestions.

 

[bison]

Dusty,

Forgot: one reason I was leaning towards the 67 or 71 is because the convertor is a 3800 n/l 9" and the motor is 231cu.in. Open for suggestions.

My suggestion would be to determine how much power i want to make and how much i want to spend doing it. If your looking for only mid to high 9's id be all over a 6765 or 6768. You may need a converter too. Dont buy a turbo that will support 900hp if you plan on making 750hp.

 

[slo-joe55]

Binson,

Thanks for the info. 6768 sound like the way to go.

 

[Dusty Bradford]

Like Bison said. It ultimately comes down to how fast you want to go.

 

[slo-joe55]

Thanks Guys.

 

[Boost231]

ok since its kind of on topic and im trying to learn, so you can spool and make enough power to take a 235 CI into the 9's with the 6765 and the 6768 with the right combo correct?

this can be done on ported irons as well or better off going with a nice set of alum?

What stall to spool those bad boys up? 3200 PTC 9 n/l?

just trying to learn

 

[2QUICK2B6]

6768 spools easy .... i just dont have the reast of the combo

 

[Boost231]

6768 spools easy .... i just dont have the reast of the combo

what converter and heads do you have?

 

[2QUICK2B6]

had stock everysht ... upgrading a few things now. had a 3200-4 911 converter was sliping like crazy

 

[Dusty Bradford]

ok since its kind of on topic and im trying to learn, so you can spool and make enough power to take a 235 CI into the 9's with the 6765 and the 6768 with the right combo correct?

this can be done on ported irons as well or better off going with a nice set of alum?

What stall to spool those bad boys up? 3200 PTC 9 n/l?

just trying to learn

Yes either of these 67's will go 9's on a 235. Ported irons will take you there but of course you'll do it on less boost with the higher flowing aluminum heads.

They will spool with one of my 9.5 with's a stall of 3000-3200.

 

[Boost231]

Really dusty, you can spool that 6768 with one of your 3000k. Must be the dbb right. What stall for the 6765 and the 6768 journal bearing?

 

[forcefed3.8's]

A friend of mine is running a 6765JB with a 10" 2800 stall. It spools great, comes up on boost at part throttle. It does however overpower the converter at the track. He is planning on switching to a 9.5 PTC.

 

[Boost231]

Wow, so how about a 6768JB on a 235 with ported irons and a ptc 9 n/l 3000?

 

[GNBRETT]

Next go around I will go with a 67 or similar for a street car. That 67 will make more power then you will ever use in ur wildest wet dreams

 

[Otto J]

Next go around I will go with a 67 or similar for a street car. That 67 will make more power then you will ever use in ur wildest wet dreams

LOL, Bison and I tried to beat that in your head since you started building your last car.

 

[bison]

Next go around I will go with a 67 or similar for a street car. That 67 will make more power then you will ever use in ur wildest wet dreams

Ill buy you a bottle of Jack Daniels so you can continually pour it on your right hand.