Spool Time?

[INJCTED]

have a 347 9.5.1

I plan to spin the motor to 7000 and im looking for a spool time around
3500ish

I found these turbos im a buddies garage and he said i could have them they have Garrett on them but there isnt a part number or serial number. My buddy grinded the housings smooth for a finished look. Would these turbo work as twins for what im looking for?

The specs i measured today
4" Inlet
3" V Band
Divided T3 Flange
Compressor Wheel
.68 A/R
Ind: 52.76 mm
Exd: 75.46 mm

Turbiner Wheel
.82 A/R
Ind: 57.75 mm
Exd: 73.35 mm

Thanks
Dominic

 

[Sean]

Those are 60 trim t3's IIRC. They should spool up fiarly fast on a 347ci SBF.

 

[INJCTED]

So would the spool time be close to my 3500ish mark

 

[siLversLeigh]

auto or stick? rear end gear? weight of car?

Probably fully spooled before that is my guess.
I'm not an expert by any stretch though.

twin 61's on 281ci w/8.5 to 1 is at full boost around 4300

don't think you'd want to spin them to 7k

 

[Sean]

So would the spool time be close to my 3500ish mark

in the vicinty would be my geuss. most likely going to choke out around 6500 though. maybe sooner.

 

[MystryGuy]

in the vicinty would be my geuss. most likely going to choke out around 6500 though. maybe sooner.

x2
nice part is if the .82 exh. housing spooled too late for your stick car you could easily switch to a .63