how do you tell what size turbo - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 14 Old 01-10-2006, 01:34 AM Thread Starter
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how do you tell what size turbo

ok i am new too this turbo stuff. i am wantin to swap from nos to a turbo. a friend of mine has one on his car(eagle talon)that i can get for a good deal. the compressor side is polished and i don't see any numbers. the exhaust is a .96 a/r. he says' it a 70 sumthin but he cant remember for sure. he is goin smaller, and wants to do sum trading for some stuff for another project. i am wondering how to find out what size it is, and how well would it work on the combo in my sig. thanks mike


93 coupe,331,nasty hyd.fti cam,vic jr's,vic jr intake,750 carb,fogger,powerglide,4.30's.still slow as hell.
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post #2 of 14 Old 01-10-2006, 06:01 PM
 
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the 4.10s will have to go. as for the size, look on the compressor housing and see what the a/r ratio is. Then measure the exhaust and compressor wheels, inlet on the compressor, outlet, etc and get back to us

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post #3 of 14 Old 01-10-2006, 07:30 PM
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As stated above, to really know what it is, you'll have to pull the compressor and turbine housing and measure the wheels at both the inducer and exducer (smallest and largest diameter). Post up the numbers you get and someone will be able to tell you what it is.
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post #4 of 14 Old 01-11-2006, 01:53 AM Thread Starter
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we called the guy who had it originally today. he said that it has around 300 miles on it since the rebuild. it is a 76mm turbo with an a.r of .96 on the exhaust. i traded him a motor i had $275 in so i guess i didn't go wrong. the next thing is the list is headers. my motor is 9.5 to 1. would 1 5/8's do and who do ya recomend for headers? one more ?, with this turbo when should it start buildin good boost? as far as the 4.10's i new they would have ta go. i was thinkin bout 3.55's. sorry for all the ?'s just want to do this one time and do something diffrent. thanks mike

93 coupe,331,nasty hyd.fti cam,vic jr's,vic jr intake,750 carb,fogger,powerglide,4.30's.still slow as hell.
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post #5 of 14 Old 01-11-2006, 01:29 PM
 
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i'm putting 3.27s with my T67. Depending on your setup, ie. heads, intake, porting(if any), it should spool around 4k due to that larger exhaust A/R. i'd go w/ 3.27s, IMO. and the 1 5/8 primaries will do fine unless you want 900+rwhp
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post #6 of 14 Old 01-13-2006, 07:07 AM
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Try and drop compression if you can ??? Under 9 to 1....

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post #7 of 14 Old 01-14-2006, 01:32 AM Thread Starter
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i was thinkin about maybe doing that. my block is already o-ringed and compression should be 9.3 to 9.5. so all i'ld have to do is put a little thicker head gasket on it. does anyone have any idea of when it should should make good or full boost with the .96 a/r on the exhaust side or should i look into swappin to an .81?

93 coupe,331,nasty hyd.fti cam,vic jr's,vic jr intake,750 carb,fogger,powerglide,4.30's.still slow as hell.
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post #8 of 14 Old 01-14-2006, 04:59 PM
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I find it difficult to believe he had a T76 on a 2L engine...

That thing wouldn't spool till ~7k rpm on a 2L.

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post #9 of 14 Old 01-14-2006, 06:47 PM
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Quote:
Originally Posted by Cld12pk2go
I find it difficult to believe he had a T76 on a 2L engine...

That thing wouldn't spool till ~7k rpm on a 2L.
Ha? More a time thing rather than rpm????
Alittle N20 would help heaps.....

1991 XR8 Australian Falcon TFS induction
2014 Falcon GTE Supercharged Coyote

85 Lb inj Custom cam ,P 2000 Haltech ecu...4x's 2 coil wasted spark ignition.Twin SC 61-2s with Dart block, 330/4340 Crank, Oliver rods,7.9/ comp c C.P pistons.. 482 rwkw/ 646 rwhp..A.P 4 pot brakes...TKO
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post #10 of 14 Old 01-15-2006, 08:49 PM Thread Starter
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i am sopossed to get it off his car(all whl drive talon) tuesday evening after work since the car is at our shop. i told him too leave it on there till he got the smaller one for it this weekend. i went up to work today and took some of his inlet piping of to see if i could see any numbers on the compressor side, but everything is pollished smooth. it does have a 3 inch inlet/ 3 inch on center exhaust. the bolt pattern where it mounts to his header from bolt center to center is 3 1/4 by 2 3/4 if i remember correctly. when i get it i am gonna take it to the local place that rebuilds all the turbos here to see what it is before i order my headers since i am a nos guy tryin to go turbo. thanks mike


93 coupe,331,nasty hyd.fti cam,vic jr's,vic jr intake,750 carb,fogger,powerglide,4.30's.still slow as hell.
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post #11 of 14 Old 01-18-2006, 04:24 PM
 
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Measure DP and DG then post it for both the compressor and turbine side.

This link will help understand.... http://www.forcedinductions.com/help.htm

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post #12 of 14 Old 01-21-2006, 05:41 PM Thread Starter
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measured the comp. wheel and came up with 2 7/8 and just a nudge past the 4 inch line. the micrometer that used didn't want to work right. so i used it then measured what i had with a tape measure. from what i am gettin is that it is somwhere along the lines of 72, or 74. but i am prolly wrong.anyone with better info please chim in. thanks mike

93 coupe,331,nasty hyd.fti cam,vic jr's,vic jr intake,750 carb,fogger,powerglide,4.30's.still slow as hell.
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post #13 of 14 Old 01-25-2006, 01:06 PM
 
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Sounds like a typical 72mm/102 mm exducer wheel.

Jose
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post #14 of 14 Old 01-26-2006, 12:52 AM Thread Starter
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thanks jose. that's what i was thinking. that'll be enough turbo for me... for now. thanks mike

93 coupe,331,nasty hyd.fti cam,vic jr's,vic jr intake,750 carb,fogger,powerglide,4.30's.still slow as hell.
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