new motor not fast enough!!

Mr. Rustypwnz

Advanced Member

Jun 1, 2005

1,761

63

69

indianapolis/ valdosta ga

Apr 9, 2010

#1

• Apr 9, 2010

• #1

ok guys, i recently put together a PI motor with self ported heads, windsor cams, and some bolt ons. its throwing a o2 code which will be fixed tomorrow but it still isnt as fast as i would like it to be, it seems with the heads its more of a higher rpm lover now, but he cams arnt helping at all, which i have some, just waiting on spring and tune money..

but would it hurt at all to try out the vic jr. after i get my cams in? and somewhere down the line i will put in some lt's.

but i really want to try this intake out bad!! i think it would really scream with the cams and intake, am I wrong?

just looking to make it a contender finally, instead of high 13's

 

Winters98GT

Whoop...whoop-whoop-whoop-whoop...GANGNAM STYLE!!!

Founding Member

Nov 29, 1999

5,520

1,291

224

H Town

Apr 9, 2010

#2

• Apr 9, 2010

• #2

I would wait until you get it out to the track to jump to any conclusions. What are your ET/MPH goals? What were you trapping previous to the headswap? What is your full list of go fast mods? Why didn't you just wait until you had the funds and go with aftermarket cams while the motor is apart?

 

D

Deleted member 38176

Apr 9, 2010

#3

• Apr 9, 2010

• #3

Self ported heads? I dont mean to be rude or offensive......but do you have any idea how to port heads or are you just some guy with a Dremel tool and too much time on his hands? I mean no offense, but I always cringe when I hear "self ported anything".

 

M

Moon

Member

Mar 22, 2010

190

0

16

Close to Chicago

Apr 9, 2010

#4

• Apr 9, 2010

• #4

Nightfire said:

Self ported heads? I dont mean to be rude or offensive......but do you have any idea how to port heads or are you just some guy with a Dremel tool and too much time on his hands? I mean no offense, but I always cringe when I hear "self ported anything".

Click to expand...

+1. I would never port heads myself. I'll leave those responsibilities to Trickflow

 

fobnicat

New Member

Mar 21, 2010

87

0

0

Georgia

Apr 9, 2010

#5

• Apr 9, 2010

• #5

Or to fox lake

 

deftsound

Please ask me how much my supercharger cost

Apr 6, 2004

945

1

39

Texas City TX

Apr 9, 2010

#6

• Apr 9, 2010

• #6

LONGTUBES

 

98COBRA281

10 Year Member

Nov 24, 2007

1,348

30

59

Port St. Lucie, Florida

Apr 9, 2010

#7

• Apr 9, 2010

• #7

if you go with the victor, plan on revving 6500+ to make good power, get a set of MHS cams, and 4:30's

with my victor jr. & MHS stage 3.5 cams, it does not want to run below 2500rpms, that setup really turns it into a high rpm motor, even with 4:30's at 45mph in 5th gear it will still "chug" i need more GEAR!

 

trombonedemon

Well-Known Member

Jun 25, 2009

1,962

39

59

U.S.A, U.S.A., U.S.A.!

Apr 9, 2010

#8

• Apr 9, 2010

• #8

98COBRA281 said:

if you go with the victor, plan on revving 6500+ to make good power, get a set of MHS cams, and 4:30's

with my victor jr. & MHS stage 3.5 cams, it does not want to run below 2500rpms, that setup really turns it into a high rpm motor, even with 4:30's at 45mph in 5th gear it will still "chug" i need more GEAR!

Click to expand...

Is valve float a factor at those high of RPMs?

 

N

ninjastang125

New Member

Nov 1, 2008

591

2

0

maryland

Apr 9, 2010

#9

• Apr 9, 2010

• #9

Not with good vavle springs

 

Mr. Rustypwnz

Advanced Member

Jun 1, 2005

1,761

63

69

indianapolis/ valdosta ga

Apr 9, 2010

#10

• Apr 9, 2010

• #10

Nightfire said:

Self ported heads? I dont mean to be rude or offensive......but do you have any idea how to port heads or are you just some guy with a Dremel tool and too much time on his hands? I mean no offense, but I always cringe when I hear "self ported anything".

Click to expand...

lol i think the same thing, ive done 3 sets of pi's and about 30 set of SBF heads.. i know how its done!!

 

BurningRubber

10 Year Member

Dec 6, 2004

1,865

24

58

Apr 9, 2010

#11

• Apr 9, 2010

• #11

Well you don't exactly have a performance build, so don't get too discouraged.

Stock Windsor cams are absolutely nothing special at all. It's a stock PI cam in ported (how much???) PI heads.

With bolt ons only, you're still a bolt on GT with ported heads and stock cams, and I assume no tune since the rebuild.

If you ported the heads well it will still be restricted by using stock cams. A healthier set of cams and longtubes (even on a non-ported head) will wake the car up a bit. The stock intake manifold WILL support those mods just fine, it actually flows really well.

 

Mr. Rustypwnz

Advanced Member

Jun 1, 2005

1,761

63

69

indianapolis/ valdosta ga

Apr 9, 2010

#12

• Apr 9, 2010

• #12

Winters98GT said:

I would wait until you get it out to the track to jump to any conclusions. What are your ET/MPH goals? What were you trapping previous to the headswap? What is your full list of go fast mods? Why didn't you just wait until you had the funds and go with aftermarket cams while the motor is apart?

Click to expand...

it pulls much harder now than it ever has, and i still have the stock plenum and tb on it!! (my other got ripped off )

i also have some custom ground comps, just not in yet, becasue of stock manifolds, springs and stock plenum and no tune!!

well i dont really have an e.t. goal, but an ass satisfaction goal i guess lol.
it was going 101mph with just pi cams and intake and 4.10's, i would like 110-12 mph on motor, and possibly put a 100 shot on it..

 

98COBRA281

10 Year Member

Nov 24, 2007

1,348

30

59

Port St. Lucie, Florida

Apr 9, 2010

#13

• Apr 9, 2010

• #13

trombonedemon said:

Is valve float a factor at those high of RPMs?

Click to expand...

keep it under 6500 with stock springs, i went with comp behives when i built my motor!

 

98COBRA281

10 Year Member

Nov 24, 2007

1,348

30

59

Port St. Lucie, Florida

Apr 9, 2010

#14

• Apr 9, 2010

• #14

Moon said:

+1. I would never port heads myself.

Click to expand...

why? its simple, i hand ported my heads, some people told me i would loose power

 

Mr. Rustypwnz

Advanced Member

Jun 1, 2005

1,761

63

69

indianapolis/ valdosta ga

Apr 9, 2010

#15

• Apr 9, 2010

• #15

^ yeah and your **** is slow!!!

people act like only the major companies know the "secrets" to porting

ive personally drug alot of the 5.0 crowd with my hand ported gt40 P heads, that were running thumper heads and afr's and others.. people were ASTOUNDED!!! i laughed

 

Mr. Rustypwnz

Advanced Member

Jun 1, 2005

1,761

63

69

indianapolis/ valdosta ga

Apr 9, 2010

#16

• Apr 9, 2010

• #16

98COBRA281 said:

keep it under 6500 with stock springs, i went with comp behives when i built my motor!

Click to expand...

im gonna try and make some ls7 springs work, stock those things will go 7000 rpm or better with heavier valves, so i should be fine..

 

D

Deleted member 38176

Apr 10, 2010

#17

• Apr 10, 2010

• #17

Mr. Rustypwnz said:

lol i think the same thing, ive done 3 sets of pi's and about 30 set of SBF heads.. i know how its done!!

Click to expand...

Alrighty then!

 

Mr. Rustypwnz

Advanced Member

Jun 1, 2005

1,761

63

69

indianapolis/ valdosta ga

Apr 10, 2010

#18

• Apr 10, 2010

• #18

well im still fighting this low rpm random miss, but at WOT the car is really starting to come alive!! i ran some mostly stock ls1 cars on a closed course last night and took down all of em, i was pulling them up top as well, so it should mph pretty decent, as before it wouldnt do this at all..