Which and what size turbo?
04-30-2012, 09:43 AM
#12
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I am not sure what the A/R on turbine side is, I think it is .68. I tried looking up the numbers off of the turbo at master powers site but they didn't match anything. It is a trick stage 2 kit so maybe he can chime in and give the specs of his kit. I will switch to a .96 and see what that does for me before I change the turbo. I am saving up for the triple12 cam now. The stall will have to wait a bit as funds are tight as always. Thanks for the advice and I will try and put it to good use. Can I order just the .96 A/R from master power or where do I need to look to get this.
04-30-2012, 08:55 PM
#16
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Sounds like my 408 with the old tc76 and 1.15 housing, fell on its face after 4800. I went to a bigger turbine wheel, 1.10 housing s400 and same size comp wheel and on 2# less boost I picked up 10mph at the track and was able to turn it up to 5500, VE graph shows I could go further but not with the valve springs.
04-30-2012, 09:35 PM
#17
Sounds like my 408 with the old tc76 and 1.15 housing, fell on its face after 4800. I went to a bigger turbine wheel, 1.10 housing s400 and same size comp wheel and on 2# less boost I picked up 10mph at the track and was able to turn it up to 5500, VE graph shows I could go further but not with the valve springs.
05-01-2012, 04:32 AM
#18
His down-pipe wont match up with a BW turbo and if your changing turbine wheels i'd think your at point of just swapping snails. Best bet for a simple swap and little more lag would be a PTE 76gts/.96. Will mount up, 76mm wheel and a 75mm turbine. Wish I still had mine.
05-01-2012, 07:25 AM
#19
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I wasnt saying he needed to swap to a BW, just that he neede a bigger turbine wheel period. I had to make up a whole new downpipe and the first 18" before the inlet flange to accomadate the larger (massive actually compared to the TC) BW.
05-01-2012, 12:02 PM
#20
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His down pipe won't match up to the MP70 1.0A/R Q-trim either, the housing is noticeably larger and has a 3.5" v-band. I will say though this turbo would probably satisfy you as the boost won't come in near as fast as with the .96 p-trim. I have been running it for awhile now and I also have experience with the .96 P-trim on a 5.3, and there is a significant difference in lag between the two. I can drive my truck anywhere I want without getting into boost. The only time I have trouble staying out of boost is when merging onto the freeway on a short ramp, or pulling a long grade on the highway with the converter locked at 60-65mph. The later is not so much of an issue though. I do understand your desire to be able to drive without ever getting into boost though. That was my reasoning behind choosing the Q-trim over the P-trim, along with a little additional hp potential, and I couldn't be happier with my decision. I think the MP70 Q-trim is the absolute perfect match for a 5.3.