Is 2000 Stock oil pump good enough?
06-19-2007, 08:52 AM
#1
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Is 2000 Stock oil pump good enough? I am rebuilding a 2000 LS1 (50k miles) with H/C for a 94 RX7, looking for 400rwhp. My "Build a LS1" book describes porting the oil pump and modding the spring, but I can't find any online info on the spring mod.
Is there a reason for buying a new oil pump? And is this ebay item sufficient?
http://cgi.ebay.com/ebaymotors/ws/eB...m=320128595185
Is there a reason for buying a new oil pump? And is this ebay item sufficient?
http://cgi.ebay.com/ebaymotors/ws/eB...m=320128595185
06-19-2007, 09:06 AM
#2
No, the stock oil pump is not good enough. Get a ported pump with a little more pressure (not too much though). Thunder Racing sells a nice one for a good price.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
06-19-2007, 09:43 AM
#3
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I have to disagree with that. I'm still on my stock oil pump and it's still has great pressure. 60 psi on cold start ups. Holds 40 psi when warm and at idle. I maybe one of the lucky ones but if it's still holding good pressure, why replace it?
06-19-2007, 09:58 AM
#4
Originally Posted by JakeY2KZ
I have to disagree with that. I'm still on my stock oil pump and it's still has great pressure. 60 psi on cold start ups. Holds 40 psi when warm and at idle. I maybe one of the lucky ones but if it's still holding good pressure, why replace it?
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
06-19-2007, 12:06 PM
#6
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i ran my stock pump on my h/c setup 45-50psi hot idle too.
was it the smartest thing to do? probbly not but i got lucky and never had an issue
, did i trust it for my new motor, hell no
if you have it in the budget your already in there so id replace it
was it the smartest thing to do? probbly not but i got lucky and never had an issue
, did i trust it for my new motor, hell no
if you have it in the budget your already in there so id replace it
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06-22-2007, 01:16 PM
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My stock 98 pump worked great. 45 hot idle, 60ish cold start, 60ish cruise. When I did my cam swap I figured I'd swap it out for a ported one for, if nothing else, piece of mind.
The new ported pump puts up very similar psi numbers, but I'm glad I put a new one just incase. I don't want to join the spun bearing club if I can avoid it.
The new ported pump puts up very similar psi numbers, but I'm glad I put a new one just incase. I don't want to join the spun bearing club if I can avoid it.
06-22-2007, 02:43 PM
#11
IMO.. if you have the engine apart for any reason.. and if you can aford a new pump.. do it.. cheap insurance.. and as far as pressure.. as long as you meet the general rule of thumb.. 10 psi for every 1k of rpm, and at lease around 40 psi at idle. you will be good (a bit better is good).
my 2 cents.
my 2 cents.
