becools
Boosting 25 psi
Addicted to boost..
Posts: 110
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Post by becools on May 23, 2012 9:09:49 GMT -5
Well, Here's my other 2.3t, Which is also a Project.. But alot closer than my 85. As soon as I get my cyl. head back from Bo-port, I am driving it to the dyno for a tune. The Goods: -Built shortblock - wiseco forged 8:1 cr pistons, crower sportsman rods, billet intermediate shaft, Studded and strapped. -Bo-port stage 3 iron head, 2.5 cam kit, solid lifters, and cam tower straps. -Bo-port Twin Scroll Header -Boport Stage 3 Knife edge'd lower intake, Gutted and rotated upper. -Precision 6262 Billet BB Turbo -Sds Em-4 Engine management. -Tremec T56 -5.0 bell housing adapter -Aluminum "swap" Flywheel -Mcleod RST Twin disk clutch -Autometer guage retrofit -Custom sumped tank -13" Cobra front Brakes -Flaming river Manual 15:1 Rack -Turbo joe fuel rail -Stinger FMIC kit. -Battery box mounted in rear -Aeromotive A1000 with billet controller, 8 an feed. 10 an return. -AFCO Alum radiator -Line lock -Gizzmo Electronic boost controller -8.8 with 3.73/ Upr upper and lower control arms(03 cobra Irs swap possible) -Eibach Drop Springs all around -MM Caster camber plates. -Weld in torque boxes and sub-frame connectors Here are a few pics before i took it all apart again:
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svslow
Boosting 25 psi
Posts: 209
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Post by svslow on May 23, 2012 11:10:37 GMT -5
What turbo is that?
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Post by bobbarker on May 23, 2012 12:27:04 GMT -5
That's your daily driver? suhweet!
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becools
Boosting 25 psi
Addicted to boost..
Posts: 110
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Post by becools on May 23, 2012 14:32:11 GMT -5
Its a 56 trim garrett/precision hybrid.
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Post by Matt Culpepper 2300gearjammer on Jun 3, 2012 8:08:32 GMT -5
Ha With those mods and then a head from Bo thats a 10sec DD. Very nice ride.
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Post by Carl on Jun 3, 2012 10:45:48 GMT -5
Very nice, wish my car was that clean.
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becools
Boosting 25 psi
Addicted to boost..
Posts: 110
|
Post by becools on Jun 25, 2012 14:17:22 GMT -5
Okay, so I have been researching alot about turbo's, and found out that the Garrett I have isn't going to get me to my goals. I have a Turbonetics 60-1 stage 5, ball bearing turbo sitting on my bench. .70 ar compressor and .76 turbine. I measured the compressor wheel and calculated it to be a 54 trim. I looked at Turbonetics sizing graph, and for the 2.3 displacement and 500HP, it says 60-1 stage V .63 a/r exhaust housing(go figure). If I change the exhaust housing to a .63, will this support my goals of 400rwhp and leave room to grow? Being new to the turbo group, I am having a hard time reading compressor maps. I figured out that my pressure ratio at 20 psi of boost is 2.26. I am not entirely sure how to calculate airflow, other than that it takes 1lb of air to make 10hp. Is this accurate?
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Post by Stinger on Jun 25, 2012 16:19:54 GMT -5
What turbo is on the car now? The 60-1 is an OK compressor but the main issue I have is it maxes out at about 25psi (just under 2.8 pressure ratio): 22returbo.net/compressormaps/med/to4-60-1.jpgThe 1lb/10hp will get you in the ballpark for figuring out a "max hp" for a given turbo. With that said, the turbo should allow you to reach your goals (with either exhaust housing) but for a more "ideal" turbo, you'd swap the 60-1 compressor wheel for something like a GT35R compressor wheel (which creates the exact turbo I have on my SVO, except mine isn't ball bearing). GT35 compressor: 22returbo.net/compressormaps/med/GT35compress.jpg
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svslow
Boosting 25 psi
Posts: 209
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Post by svslow on Jun 25, 2012 16:29:26 GMT -5
Are you sure that the exhaust housing is actually a .76 A/R and not a 76 trim ?
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becools
Boosting 25 psi
Addicted to boost..
Posts: 110
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Post by becools on Jun 25, 2012 18:57:04 GMT -5
Thanks for the tips guys, The turbo that was on it is a Garrett M24 54 trim journal bearing with a .65 A/r compressor and .63 A/r exhaust. I measured the Turbonetics turbine wheel of the and it is a 82 trim. Would I need a different compressor housing to upgrade to the GT35r compressor wheel? The turbo doesn't have any markings to tell me that it has been balanced, so it may be a good opportunity to change out the wheel and get it balanced all at once.
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Post by Stinger on Jun 25, 2012 19:54:31 GMT -5
You don't have to change the housing to change the wheel IF the housing is machined to match the new wheel. Sometimes this isn't possible if the wheels are too different in size though.
The 54 trim is a real "oddball" so I have a hard time believing that's actually what it is. Did you determine this by measuring the wheel and calculating the trim or by other means (like comparing what the minor/major diameters are to what is available for purchase online)?
Turbo components are balanced individually, then turbos are sometimes balanced as an assembly. The turbo on Matt's car has a new compressor wheel on it that I installed and it was not balanced after the fact (because it isn't necessary).
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becools
Boosting 25 psi
Addicted to boost..
Posts: 110
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Post by becools on Jun 25, 2012 23:16:18 GMT -5
Okay, so I pulled the compressor housing off a minute ago, and noticed that there are 7 short blades and 7 tall blades.. Do i measure from the short blade to the tall blade for the inducer and exducer? It's been a long day and im a little confused. Thats probably what threw my measurement off earlier and gave me 54
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Post by Stinger on Jun 25, 2012 23:55:05 GMT -5
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becools
Boosting 25 psi
Addicted to boost..
Posts: 110
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Post by becools on Jun 26, 2012 10:24:52 GMT -5
Exducer- Inducer- Calculated to be .546 trim If I measured it like I did the inducer and only use the tall blades this is what I got- Calculated to be .573 trim
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Post by Stinger on Jun 26, 2012 13:58:58 GMT -5
You have to measure straight across, regardless of if you're touching a tall or short blade. Sometimes this isn't possible as straight across is between blades and therefore your measurements will be off slightly. Because such small inconsistencies in measurements have a large effect on the calculated trim, it's often useful to use known sizes for different available wheels to find what you've got. In that case, using a link like this (and knowing your exducer is 3"/76.2mm): 74.208.101.201/forum/tech-support/803-how-identify-measure-your-turbonetics-unit.html#post5821 indicates you have a T04E 57 trim which is much more believable since that and the 50 trim are the two most common compressors used for hybrids.
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