|
|
Joined: Apr 2002
Posts: 1,420
Hard-core CEG'er
|
OP
Hard-core CEG'er
Joined: Apr 2002
Posts: 1,420 |
Im thinking about throwing on SVT heads on my 99SE, i was going to get them ported and polished too , Will i gain much of anything by doing this ? If so what is the gain ?
|
|
|
|
|
Joined: Apr 2002
Posts: 1,420
Hard-core CEG'er
|
|
OP
Hard-core CEG'er
Joined: Apr 2002
Posts: 1,420 |
Sorry i didnt mean to say Stock SE, it does have exhaust and y pipe / superchip , intake .
|
|
|
|
|
Joined: Sep 2000
Posts: 4,693
Hard-core CEG'er
|
|
Hard-core CEG'er
Joined: Sep 2000
Posts: 4,693 |
Except for the extrude hone polish, the SVT heads are the same as the SE heads. If you port and polish the SE heads you should be able to pretty much replicate the extrude honed SVT heads. Instead of the SVT heads, you would be better served with the SVT intake manifolds, at least the upper, and the SVT throttle body.
The SVT cams are different though, and terribly expensive.
Jim Johnson
98 SVT
03 Escape Limited
|
|
|
|
|
Joined: Apr 2002
Posts: 1,420
Hard-core CEG'er
|
|
OP
Hard-core CEG'er
Joined: Apr 2002
Posts: 1,420 |
Arent the SVT cams in the heads ? I do have the SVT cams
|
|
|
|
|
Joined: Apr 2002
Posts: 1,420
Hard-core CEG'er
|
|
OP
Hard-core CEG'er
Joined: Apr 2002
Posts: 1,420 |
I was told by adding the SVT heads to my engine ,it would give me anouther 10-15HP ?
|
|
|
|
|
Joined: Aug 2000
Posts: 1,128
Hard-core CEG\'er
|
|
Hard-core CEG\'er
Joined: Aug 2000
Posts: 1,128 |
there is a significant difference between SVT and SE cams.
|
|
|
|
|
Joined: Mar 2003
Posts: 4,292
Hard-core CEG\'er
|
|
Hard-core CEG\'er
Joined: Mar 2003
Posts: 4,292 |
you should really go w/ the svt uim/lim, of the few mods i have done this is def. the most noticable, i'm just looking for svt throttle body, i bought the 65mm w/o doing my hw  also were did you find the heads? so the svt and se are the same other than the extrude honing? if thats the case i have a extra duratec motor i could scavange!!!! 
"Youth ages, immaturity is outgrown, ignorance can be educated, and drunkenness sobered, but STUPID lasts forever."-Aristophanes.
--93 pgt,headers,intake,borla=14.9 1/4mile
|
|
|
|
|
Joined: Sep 2000
Posts: 9,602
Hard-core CEG'er
|
|
Hard-core CEG'er
Joined: Sep 2000
Posts: 9,602 |
Originally posted by --CitatioN10--:
I was told by adding the SVT heads to my engine ,it would give me anouther 10-15HP ?
Not going to happen!
Maybe if you have all the SVT parts, chip, and raised compression the 99-00 SVT heads with SVT cams may give you 10HP or better.
However the heads alone will not help a ton without the better breathing before them.
The cams will help some but not nearly the same as with the better breathing and higher compression ratio.
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
|
|
|
|
|
Joined: Jul 2000
Posts: 1,977
Hard-core CEG'er
|
|
Hard-core CEG'er
Joined: Jul 2000
Posts: 1,977 |
Originally posted by Big Jim:
If you port and polish the SE heads you should be able to pretty much replicate the extrude honed SVT heads.
No, you can't replicate the extrude hone process with port and polish. Hand porting the intake passages with curves is not going to be as good as extrude honing it.
|
|
|
|
|
Joined: Jun 2000
Posts: 2,621
Redneck Troll
|
|
Redneck Troll
Joined: Jun 2000
Posts: 2,621 |
Originally posted by AirKnight:
Originally posted by Big Jim:
If you port and polish the SE heads you should be able to pretty much replicate the extrude honed SVT heads.
No, you can't replicate the extrude hone process with port and polish. Hand porting the intake passages with curves is not going to be as good as extrude honing it.
Not true. The main reason for extrude honing is the ease and speed at which the gains can be replicated from piece to piece. The next reason EH would be used over hand P&P is being able to reach intricate details inside impossible to reach ports, such as the UIM on a 2.5 Duratec. Outside of that, one has no gain over the other. The air doesn't care how the material was removed as long as the right material was taken from the correct spots. That's where an experienced P&P'er comes into play with flow numbers to back up their data. BTW, hand P&P numbers can surpass EH numbers and vice-versa depending on how much work has been done.
http://www.bnmotorsports.com
"And I will strike down upon thee with great vengeance and furious anger those who attempt to poison and destroy my CEG brothers. And you will know I am the Moderator when I lay my vengeance upon you."
|
|
|
|
|
