D1SC 10psi 346ci H/C/I
#41
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iTrader: (16)
It's possible your cats are partially clogged, which can raise the boost up. Bob
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#42
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Very nice numbers! congratulations!
#44
Heres the dyno if anyone cares to see it. Bob, you think id have an issue with the cats even though their kooks high flow cats? If i took them out would i have to redyno the car? Also, we did see some belt slip on the dyno, is the stock tensioner okay with 10 psi? I cant tighten it anymore with the 11/16 deep well socket. I have a set of crows feet i can use but im wondering if it will be too tight.
Last edited by Formula934; 08-07-2017 at 06:15 PM.
#45
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iTrader: (16)
I wouldn't expect the Kooks cats to clog up, but the only way to find out is to remove them. Yes, you would have to look to make sure the tune was still safe if you removed the cats.
The blower belt (with ProCharger slide tensioner) has to be as tight as a guitar string, otherwise you'll have belt slip problems. Bob
The blower belt (with ProCharger slide tensioner) has to be as tight as a guitar string, otherwise you'll have belt slip problems. Bob
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#46
I wouldn't expect the Kooks cats to clog up, but the only way to find out is to remove them. Yes, you would have to look to make sure the tune was still safe if you removed the cats.
The blower belt (with ProCharger slide tensioner) has to be as tight as a guitar string, otherwise you'll have belt slip problems. Bob
The blower belt (with ProCharger slide tensioner) has to be as tight as a guitar string, otherwise you'll have belt slip problems. Bob
#47
LS1Tech Sponsor
iTrader: (16)
Sending in a blower for a new impeller and seals will probably be around $1500.00. It gets expensive because ProCharger isn't going to send it back out unless every part is at 100%. Bob
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#50
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You'll end up with more in it if you switch it up to a D-1X. I prefer to have people go directly through ProCharger, as the cost almost always ends up higher than initially quoted, as they want to make sure all parts are at 100%. Thanks. Bob
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#54
On The Tree
iTrader: (2)
In for results.
typically when adding boost to a good running motor, adding another atmosphere will double your NA power, with some slight losses with efficiency so say 16-17psi would theoretically double the power the engine makes, and 7-8psi may add about 1/2 of what the engine makes... it should get you in the ball park of what you could expect, provided the similar atmospheric conditions from the NA engine numbers vs Boosted
Let say 620 rwhp @ 7.5 psi
typically when adding boost to a good running motor, adding another atmosphere will double your NA power, with some slight losses with efficiency so say 16-17psi would theoretically double the power the engine makes, and 7-8psi may add about 1/2 of what the engine makes... it should get you in the ball park of what you could expect, provided the similar atmospheric conditions from the NA engine numbers vs Boosted
Let say 620 rwhp @ 7.5 psi
#55
Launching!
iTrader: (4)
My setup is almost identical but I have a stalled auto and stock 10 bolt. I made 598rwhp/560rtq with a D1sc on 8psi and a FMIC setup . (6 rib with 3.5 blower pulley)
My current setup:
SBE ls1 ('02)
243 Heads (VJ and light bowl work)
TSP 228r 112
FAST 102/92mm
BBK 1 3/4 headers with custom catted Y and 3" cutout (w/ stock catback)
SD 60# injectors
Snow Performance Stage 2 (50/50 mix)
FLT 4l60e w/ Yank SS3600
Stock 10 bolt (3.23)
My current setup:
SBE ls1 ('02)
243 Heads (VJ and light bowl work)
TSP 228r 112
FAST 102/92mm
BBK 1 3/4 headers with custom catted Y and 3" cutout (w/ stock catback)
SD 60# injectors
Snow Performance Stage 2 (50/50 mix)
FLT 4l60e w/ Yank SS3600
Stock 10 bolt (3.23)
#56
My setup is almost identical but I have a stalled auto and stock 10 bolt. I made 598rwhp/560rtq with a D1sc on 8psi and a FMIC setup . (6 rib with 3.5 blower pulley)
My current setup:
SBE ls1 ('02)
243 Heads (VJ and light bowl work)
TSP 228r 112
FAST 102/92mm
BBK 1 3/4 headers with custom catted Y and 3" cutout (w/ stock catback)
SD 60# injectors
Snow Performance Stage 2 (50/50 mix)
FLT 4l60e w/ Yank SS3600
Stock 10 bolt (3.23)
My current setup:
SBE ls1 ('02)
243 Heads (VJ and light bowl work)
TSP 228r 112
FAST 102/92mm
BBK 1 3/4 headers with custom catted Y and 3" cutout (w/ stock catback)
SD 60# injectors
Snow Performance Stage 2 (50/50 mix)
FLT 4l60e w/ Yank SS3600
Stock 10 bolt (3.23)
#60
Update:
I went ahead and took the kooks high flow cats off and replaced them with a new TSP Y pipe into the magnaflow cat back and you wont believe this but i went from 10-11 psi when i dynoed the car to 4.5 psi @ 6500 RPM !!! To anyone who doesnt think that high flow cats are restrictive this is proof!!! I lost 5.5 psi on average just taking those hi flows off!!! Still amazes me.
I went ahead and took the kooks high flow cats off and replaced them with a new TSP Y pipe into the magnaflow cat back and you wont believe this but i went from 10-11 psi when i dynoed the car to 4.5 psi @ 6500 RPM !!! To anyone who doesnt think that high flow cats are restrictive this is proof!!! I lost 5.5 psi on average just taking those hi flows off!!! Still amazes me.