Stock shortblock, stock head, new record numbers for the EVO Green turbo
Apr 13, 2007, 09:23 AM
#137
Evolved Member
iTrader: (11)
Join Date: May 2002
Location: Eastlake, OH
Posts: 1,230
Likes: 0
Received 0 Likes
on
0 Posts
Thats incorrect. The S-Series cams are designed for the EVO 4-8.
There are also Mivec S-Series cams obviously for the 9's.
You can find more info here ---> http://www.stikiller.com/product.php...age=1&featured
There are also Mivec S-Series cams obviously for the 9's.
You can find more info here ---> http://www.stikiller.com/product.php...age=1&featured
Last edited by BBYBruno; Apr 13, 2007 at 09:25 AM.
Apr 13, 2007, 09:31 AM
#139
Thats incorrect. The S-Series cams are designed for the EVO 4-8.
There are also Mivec S-Series cams obviously for the 9's.
You can find more info here ---> http://www.stikiller.com/product.php...age=1&featured
There are also Mivec S-Series cams obviously for the 9's.
You can find more info here ---> http://www.stikiller.com/product.php...age=1&featured
do you need any sping or anything for these and also why not go with hks 272 or just hks 280
Apr 13, 2007, 09:55 AM
#141
Something else I missed. The comment about running the stock shortblock at XX hp levels and it being reliable....
My opinion at this point in time is the stock shortblock with a correct tune in it is good for 500 whp without any problems. Now, the catch is the RPM. The power does not seem to effect the engine what-so-ever, the RPM is what kills them. The higher the HP level the more you need to watch what you are trying to rev the engine to. I'd say at 500 whp on our dyno 8,000 rpm is pushing the high end of the RPM scale.
I can say without a doubt that 500 whp on our dyno has been done on the stock shortblock quite a few times at this point. Daily drivers that have had no problems at all. We just had a car in here we did rods/pistons in with about 50,0000 miles on it. The engine was gorgeous inside when we took it apart.
I have not had ONE single failure that can be linked to a HP level problem. I've seen rods break but feel it is more from RPM than anything else.
My opinion at this point in time is the stock shortblock with a correct tune in it is good for 500 whp without any problems. Now, the catch is the RPM. The power does not seem to effect the engine what-so-ever, the RPM is what kills them. The higher the HP level the more you need to watch what you are trying to rev the engine to. I'd say at 500 whp on our dyno 8,000 rpm is pushing the high end of the RPM scale.
I can say without a doubt that 500 whp on our dyno has been done on the stock shortblock quite a few times at this point. Daily drivers that have had no problems at all. We just had a car in here we did rods/pistons in with about 50,0000 miles on it. The engine was gorgeous inside when we took it apart.
I have not had ONE single failure that can be linked to a HP level problem. I've seen rods break but feel it is more from RPM than anything else.
The comment about RPM's killing con rods is a correct statement. Piston acceleration multiplies substantially as RPM's increase past stock rev limiter. The g forces are astronomical and multiply many times per ever 500rpm past 7600rpm. Power is not the only limiting factor on the 4G63, or any other boosted engine. RPM's play a very large roll in how far the stock rods can go.
"For instance, this is a Honda K20A(for example only):
Piston acceleration at TDC for K20A @ 8400 rpm = 4300 G's
Piston acceleration at TDC for K20A @ 9500 rpm = 5600 G's"
This post can be seen at https://www.evolutionm.net/forums/sh...9&postcount=17
This is obviously for a Honda K20A engine, a square engine with a rod ratio that permits high revs (9000rpm). I don't have hard numbers on the 4G63 with regards to piston acceleration, but i would be willing to say it is faster at high revs than the K20A.
CJ
Apr 13, 2007, 10:20 AM
#142
Evolved Member
iTrader: (10)
Join Date: Feb 2005
Location: Houston,tx
Posts: 1,913
Likes: 0
Received 0 Likes
on
0 Posts
https://www.evolutionm.net/forums/sh...d.php?t=250389
Apr 13, 2007, 11:41 AM
#143
Evolved Member
iTrader: (3)
Join Date: Jun 2006
Location: Panama City, FL
Posts: 820
Likes: 0
Received 0 Likes
on
0 Posts
Something else I missed. The comment about running the stock shortblock at XX hp levels and it being reliable....
My opinion at this point in time is the stock shortblock with a correct tune in it is good for 500 whp without any problems. Now, the catch is the RPM. The power does not seem to effect the engine what-so-ever, the RPM is what kills them. The higher the HP level the more you need to watch what you are trying to rev the engine to. I'd say at 500 whp on our dyno 8,000 rpm is pushing the high end of the RPM scale.
I can say without a doubt that 500 whp on our dyno has been done on the stock shortblock quite a few times at this point. Daily drivers that have had no problems at all. We just had a car in here we did rods/pistons in with about 50,0000 miles on it. The engine was gorgeous inside when we took it apart.
I have not had ONE single failure that can be linked to a HP level problem. I've seen rods break but feel it is more from RPM than anything else.
My opinion at this point in time is the stock shortblock with a correct tune in it is good for 500 whp without any problems. Now, the catch is the RPM. The power does not seem to effect the engine what-so-ever, the RPM is what kills them. The higher the HP level the more you need to watch what you are trying to rev the engine to. I'd say at 500 whp on our dyno 8,000 rpm is pushing the high end of the RPM scale.
I can say without a doubt that 500 whp on our dyno has been done on the stock shortblock quite a few times at this point. Daily drivers that have had no problems at all. We just had a car in here we did rods/pistons in with about 50,0000 miles on it. The engine was gorgeous inside when we took it apart.
I have not had ONE single failure that can be linked to a HP level problem. I've seen rods break but feel it is more from RPM than anything else.
Damn dave you need to get into the UK market somehow. Here they say you need a full engine rebuild for anything over 370 CRANK HP!!!!!
They look at me like I am crazy when I mention what kind of power you are pushing! 
On a side note, what about the Hydra EMS? Seems like it offers quite alot for the money.
Apr 13, 2007, 11:45 PM
#145
Something else I missed. The comment about running the stock shortblock at XX hp levels and it being reliable....
My opinion at this point in time is the stock shortblock with a correct tune in it is good for 500 whp without any problems. Now, the catch is the RPM. The power does not seem to effect the engine what-so-ever, the RPM is what kills them. The higher the HP level the more you need to watch what you are trying to rev the engine to. I'd say at 500 whp on our dyno 8,000 rpm is pushing the high end of the RPM scale.
I can say without a doubt that 500 whp on our dyno has been done on the stock shortblock quite a few times at this point. Daily drivers that have had no problems at all. We just had a car in here we did rods/pistons in with about 50,0000 miles on it. The engine was gorgeous inside when we took it apart.
I have not had ONE single failure that can be linked to a HP level problem. I've seen rods break but feel it is more from RPM than anything else.
My opinion at this point in time is the stock shortblock with a correct tune in it is good for 500 whp without any problems. Now, the catch is the RPM. The power does not seem to effect the engine what-so-ever, the RPM is what kills them. The higher the HP level the more you need to watch what you are trying to rev the engine to. I'd say at 500 whp on our dyno 8,000 rpm is pushing the high end of the RPM scale.
I can say without a doubt that 500 whp on our dyno has been done on the stock shortblock quite a few times at this point. Daily drivers that have had no problems at all. We just had a car in here we did rods/pistons in with about 50,0000 miles on it. The engine was gorgeous inside when we took it apart.
I have not had ONE single failure that can be linked to a HP level problem. I've seen rods break but feel it is more from RPM than anything else.
Last edited by supersupra; Apr 13, 2007 at 11:48 PM.
Apr 14, 2007, 06:53 AM
#148
Evolving Member
iTrader: (6)
Join Date: Mar 2004
Location: CT
Posts: 447
Likes: 0
Received 0 Likes
on
0 Posts
I would think the max would be like 7800 for longevity, thats where most people are with a flash. I know evodave was spinning up to 8500rpms on his stock block with an aem but thats not recomended for long engine life on stock internals!
Apr 14, 2007, 07:21 AM
#149
Newbie
iTrader: (11)
Join Date: Jun 2004
Location: NCAROLINA
Posts: 73
Likes: 0
Received 0 Likes
on
0 Posts
another heavy hitter
My current set up:
264 HKS cams in/ex
Stock motor & head
BR 65mm TB and ported intake manifold
Greddy intercooler and pipping
HKS SSQBOV
WORKS O2 housing
WORKS 76mm downpipe
test pipe
Greddy evo2 catback
HKS DLI
APEXI super ground kit
HKS Mas pipe
JESTR Tuned on 100 octane unleaded pump gas
30psi peak falling to 27-28 psi
264 HKS cams in/ex
Stock motor & head
BR 65mm TB and ported intake manifold
Greddy intercooler and pipping
HKS SSQBOV
WORKS O2 housing
WORKS 76mm downpipe
test pipe
Greddy evo2 catback
HKS DLI
APEXI super ground kit
HKS Mas pipe
JESTR Tuned on 100 octane unleaded pump gas
30psi peak falling to 27-28 psi
