max power d1sc?
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Teching In
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max power d1sc? I currently building a low compression forged 370ci, iron block, H/C and d1sc, the c.r will be about 8.6.
Is 900whp achievable with the d1sc?
can i run 20+ psi with the d1? Procharger claim that the d1sc max boost is 32 psi
this set up is on 01 m6 ss.
Is 900whp achievable with the d1sc?
can i run 20+ psi with the d1? Procharger claim that the d1sc max boost is 32 psi
this set up is on 01 m6 ss.
He already said 370ci.^^^
I think 900rwhp will be very very hard with that CI and D1SC even with 20psi if you still didnt buy d1sc then go with F1A.
What H/C/I Are you running?? 20psi is hard to run without pushing water.
I think 900rwhp will be very very hard with that CI and D1SC even with 20psi if you still didnt buy d1sc then go with F1A.
What H/C/I Are you running?? 20psi is hard to run without pushing water.
Thread Starter
Teching In
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I have already buy the d1, the cam is custom blower cam,head is pateriot LQ9.
so what the pulley size so I can push the limit of the d1.
what kind of power should I expect on 20 psi ?
so what the pulley size so I can push the limit of the d1.
what kind of power should I expect on 20 psi ?
Last edited by Mcv8; May 25, 2008 at 09:09 AM.
If you have good heads I doubt you will see 20 psi on a D1SC. Boost is simply a measure of backpressure, all you can do is max out the impeller RPM and see what you get. You'll need race gas, and even then I would say you'd make about 800 RWHP. You can spray a small shot of nitrous on it to get 900 RWHP, or get a bigger blower. I'd get some better heads with a thicker deck too.
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FormerVendor
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From: Hell AFB
Plain and simple, the d1sc will not do 900rwhp.
Upgrade into a f1a / f1c to achieve more airflow at less boost.
While the patriots are better then a non ported casting, they are not optimal for this kind of goal. A nice set of AFR or TFS heads are the ticket.
Upgrade into a f1a / f1c to achieve more airflow at less boost.
While the patriots are better then a non ported casting, they are not optimal for this kind of goal. A nice set of AFR or TFS heads are the ticket.
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Verdad Gallardo FormerVendor
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From: Hell AFB
Crank pulley dia / Blower Pulley dia * stepup ratio (d1sc 4.10) * engine rpm redline = blower speed. Advertised max rpm is 68k i believe.
To consistantly run this setup, you will need a spring loaded tensioner if you dont want to swap belts weekly (assuming daily driver).
An f1 unit will make the same hp with less strain, midrange might be a bit laggy on the f1 vs the d1sc.
To consistantly run this setup, you will need a spring loaded tensioner if you dont want to swap belts weekly (assuming daily driver).
An f1 unit will make the same hp with less strain, midrange might be a bit laggy on the f1 vs the d1sc.
I have almost the exact setup you are building...
On 10psi and the stock procharger intercooler I made 627rwhp
I have since maxed out my D1SC rpm (via custom 8" crank pulley) and am making about 5-6 more psi and added EPP's huge *** FMIC. Dont know what power will be but guessing 730-750rwhp. Thats all the steam the D1 has in her. Oh, I am runnning 9.0:1 compression. Hope this helps
On 10psi and the stock procharger intercooler I made 627rwhp
I have since maxed out my D1SC rpm (via custom 8" crank pulley) and am making about 5-6 more psi and added EPP's huge *** FMIC. Dont know what power will be but guessing 730-750rwhp. Thats all the steam the D1 has in her. Oh, I am runnning 9.0:1 compression. Hope this helps
FormerVendor
Joined: Mar 2006
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From: Hell AFB
I have almost the exact setup you are building...
On 10psi and the stock procharger intercooler I made 627rwhp
I have since maxed out my D1SC rpm (via custom 8" crank pulley) and am making about 5-6 more psi and added EPP's huge *** FMIC. Dont know what power will be but guessing 730-750rwhp. Thats all the steam the D1 has in her. Oh, I am runnning 9.0:1 compression. Hope this helps
On 10psi and the stock procharger intercooler I made 627rwhp
I have since maxed out my D1SC rpm (via custom 8" crank pulley) and am making about 5-6 more psi and added EPP's huge *** FMIC. Dont know what power will be but guessing 730-750rwhp. Thats all the steam the D1 has in her. Oh, I am runnning 9.0:1 compression. Hope this helps
We have seen 19psi on a 346 with max impeller, standard patriot heads and lpe gt2-3 , 720hp.
On 16psi on a 402 engine with ported 72cc heads about 9:1 it made 760rwhp when we ditched the heavy forged wheels for a set of bogarts.
I know it's an old thread but still valid info. You can touch 900rwhp with a d1sc if you're built right and know tuning. Made 856rwhp@16psi 3.4" pulley , 8" lower , forged 402ci 9:1 compression , 91oct + shitload of methanol (14gph + 12gph nozzles) , 20* timing (MBT) , 12.7:1 afr (yes , you read that right). No detonation at all, thank you meth. The bottleneck is now the a&a air bridge , which when swapped with a straight ram should yield a couple more lbs of boost. A higher compression setup would make even more power.
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I know it's an old thread but still valid info. You can touch 900rwhp with a d1sc if you're built right and know tuning. Made 856rwhp@16psi 3.4" pulley , 8" lower , forged 402ci 9:1 compression , 91oct + shitload of methanol (14gph + 12gph nozzles) , 20* timing (MBT) , 12.7:1 afr (yes , you read that right). No detonation at all, thank you meth. The bottleneck is now the a&a air bridge , which when swapped with a straight ram should yield a couple more lbs of boost. A higher compression setup would make even more power.
Seems pretty ragged edge to push the envelope further for the possibility of kissing the record of 900 on a D1SC. Most D1SC's maxed with good setups see 750 RWHP. If the power is the goal and you want it, it would be MUCH easier and a sure thing to just do the F1 series Procharger.
I know it's an old thread but still valid info. You can touch 900rwhp with a d1sc if you're built right and know tuning. Made 856rwhp@16psi 3.4" pulley , 8" lower , forged 402ci 9:1 compression , 91oct + shitload of methanol (14gph + 12gph nozzles) , 20* timing (MBT) , 12.7:1 afr (yes , you read that right). No detonation at all, thank you meth. The bottleneck is now the a&a air bridge , which when swapped with a straight ram should yield a couple more lbs of boost. A higher compression setup would make even more power.
I had an aftermarket impeller come apart at 62k rpm but haven't had the gears fail yet. It makes sense tho, the helical cut has less of a contact patch where the teeth meet up. They won't be able to handle quite as much load as the straight cut.
