custom cam for tc78 370 setup what do you think?
10-29-2009, 01:42 PM
#1
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custom cam for tc78 370 setup what do you think? The cam is a lsr comp cam specs are adv.276 292
dur 227 243
lift .614 .624
Is this cam good for my setup? Pro's and con's please.
It is a 1993 trans am with a 370 lq9 swap 30 over with forged manly rods,manley pistons, tune time cnc'd head manley nexteck springs,manley oversized valves,arp rod bolts,arp main studs, arp head studs and custom ordered forced induction cam. I have a GTM78 turbo with .96 a/r, built th400, ptc 3000 stall conveter, strange 12 bolt aluminum cover
33 spline axle rear with 342s.
Thanks for any replies or comments.
dur 227 243
lift .614 .624
Is this cam good for my setup? Pro's and con's please.
It is a 1993 trans am with a 370 lq9 swap 30 over with forged manly rods,manley pistons, tune time cnc'd head manley nexteck springs,manley oversized valves,arp rod bolts,arp main studs, arp head studs and custom ordered forced induction cam. I have a GTM78 turbo with .96 a/r, built th400, ptc 3000 stall conveter, strange 12 bolt aluminum cover
33 spline axle rear with 342s.
Thanks for any replies or comments.
Last edited by darooke; 01-13-2010 at 08:04 AM.
10-29-2009, 05:03 PM
#7
Looks like this is for a daily driver. I know you probably would love the choppy idle I think this cam would exhibit but the guys are right (IMO). Too big for a street driven Turbo. If you get a cam spec quote from any of the big names (Bret Bauer(sp?), CamMotion, Lloyd, etc) I doubt any of them would recommend something of this order for your goals.
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10-29-2009, 05:09 PM
#8
Single pattern, (~225/225) with mid 5XX lift on a 114LS. Let the turbo do the work...no reason for running such a large cam. Also as backpressure rises hanging that valve open that long will cause reversion.
10-30-2009, 12:07 AM
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ok, I was going with a pt88 turbo but i have seen to many of them fail, So i was looking at the tc78. I might go bigger with the turbo. This is not a daily driver its a track toy that i might take a cruise with once a month. Thanks for the info, I will speak with the builder about the duration. Thanks for the info guys.
10-30-2009, 06:00 AM
#11
You can also get the TC78 with the 'Race Cover' if you want to pump up the performance a bit while retaining the other quality/features of the TC series.
Go here and look at post #12 to see the pictures showing the difference in physical size.
https://ls1tech.com/forums/forced-in...c-units-2.html
The first page of the thread contains the price/performance potential.
Go here and look at post #12 to see the pictures showing the difference in physical size.
https://ls1tech.com/forums/forced-in...c-units-2.html
The first page of the thread contains the price/performance potential.
ok, I was going with a pt88 turbo but i have seen to many of them fail, So i was looking at the tc78. I might go bigger with the turbo. This is not a daily driver its a track toy that i might take a cruise with once a month. Thanks for the info, I will speak with the builder about the duration. Thanks for the info guys.
Last edited by mightyquickz28; 10-30-2009 at 06:35 AM.
10-30-2009, 10:10 AM
#12
You can also get the TC78 with the 'Race Cover' if you want to pump up the performance a bit while retaining the other quality/features of the TC series.
Go here and look at post #12 to see the pictures showing the difference in physical size.
https://ls1tech.com/forums/forced-in...c-units-2.html
The first page of the thread contains the price/performance potential.
Go here and look at post #12 to see the pictures showing the difference in physical size.
https://ls1tech.com/forums/forced-in...c-units-2.html
The first page of the thread contains the price/performance potential.
GTM78 pic.....
. Click below
11-03-2009, 12:11 PM
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I decided on the gtm78 because of you guys. Thanks for making me spend more dough.
Dr. Turbo my builder Tune Time will be in touch this week. Thanks for the info guys.
Dr. Turbo my builder Tune Time will be in touch this week. Thanks for the info guys.
11-03-2009, 04:45 PM
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I am going to use the cam. Tune Time stated they will stand by the cam and it will work well with my setup. They had a this cam on another forced induction pt88 370 ci car and it put out 800 whp with no issues. I trust them i have only ran and built 4 cyl turbo cars before. I was going to build this but tune time performance are ls/gm specialists so i decided to have them build it.
The trans am will have ac and no weight reduction. It well be a true street car that i can have fun with at the track once a week. I have everything to put the car together besides the turbo, down to the last bolt. Just waiting for tt to finish some of there currant projects so they can get started on my build. I will have pics soon.
The trans am will have ac and no weight reduction. It well be a true street car that i can have fun with at the track once a week. I have everything to put the car together besides the turbo, down to the last bolt. Just waiting for tt to finish some of there currant projects so they can get started on my build. I will have pics soon.
Last edited by darooke; 11-03-2009 at 04:53 PM.
11-06-2009, 08:39 PM
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Is there anything i am missing?
List of parts I have: forged 370, ported 317 heads, ported ls6 intake/tb, custom comp cam, built th400 with trans break, B&M trans cooler, ptc 3000 stall converter, alum driveshaft, strang 12 bolt rear with 342 gears, hurst quarter shifter with tb button, tci flywheel, bmr crossmember, pan hard bar, bmr tq arm, spoohn tubular k member/solid mounts, QA1 275 springs coilovers and rear QA1 coilovers, custom wire harness, turbo piping, tial 44mm wastegate, tial 50mm BOV, dual walboro fuel setup, -8 feed and -6 return, aeromotive fpr, fast fuel rails. aem wideband, autometer boost gauge, 2000 z28 gauge cluster. All arp bolts and gm gaskets.
List of parts I Need: the gtm 78mm turbo, drag wheels and skinnies, slicks, 8 point chrome moly roll cage(maybe a 12 point), 1999 and up ecu and a tune. I think thats it.
List of parts I have: forged 370, ported 317 heads, ported ls6 intake/tb, custom comp cam, built th400 with trans break, B&M trans cooler, ptc 3000 stall converter, alum driveshaft, strang 12 bolt rear with 342 gears, hurst quarter shifter with tb button, tci flywheel, bmr crossmember, pan hard bar, bmr tq arm, spoohn tubular k member/solid mounts, QA1 275 springs coilovers and rear QA1 coilovers, custom wire harness, turbo piping, tial 44mm wastegate, tial 50mm BOV, dual walboro fuel setup, -8 feed and -6 return, aeromotive fpr, fast fuel rails. aem wideband, autometer boost gauge, 2000 z28 gauge cluster. All arp bolts and gm gaskets.
List of parts I Need: the gtm 78mm turbo, drag wheels and skinnies, slicks, 8 point chrome moly roll cage(maybe a 12 point), 1999 and up ecu and a tune. I think thats it.
Last edited by darooke; 01-13-2010 at 08:08 AM.
05-05-2010, 07:38 PM
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Changed the exhaust housing to a 1.15 a/r. Motor,turbo kmember,suspension, tranny and harness are going in this week.
Last edited by darooke; 05-05-2010 at 08:59 PM.