Why doesn't my car make boost in 1st gear?

C

CJMcLean

Founding Member

Jul 26, 2000

120

0

0

Houston, TX, USA

Mar 9, 2006

#1

• Mar 9, 2006

• #1

I've noticed that my car isn't making boost in 1st gear. Once I get into 2nd, it starts to make 5-6 #. Is it because in 1st, it doesn't have time to make boost?

 

VPStang

Founding Member

Oct 1, 2002

346

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16

bHAM, alabama

Mar 9, 2006

#2

• Mar 9, 2006

• #2

how high are you letting it rev in 1st?

 

sgarlic

Founding Member

Apr 21, 2001

3,085

1

56

Mar 9, 2006

#3

• Mar 9, 2006

• #3

You should be making boost any gear as long as you're under load and at decent RPM's.. perhaps your boost gauge is tapped to a weak line or something.

 

jstreet0204

Active Member

Jun 26, 2003

939

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36

Winston Salem, NC

Mar 9, 2006

#4

• Mar 9, 2006

• #4

What gears do you have? With 4.10's I don't make much boost in 1st because it is so short that it doesn't have time to build up. The rest of the gears I make 9lbs

 

C

CJMcLean

Founding Member

Jul 26, 2000

120

0

0

Houston, TX, USA

Mar 9, 2006

#5

• Mar 9, 2006

• #5

What gears do you have? With 4.10's I don't make much boost in 1st because it is so short that it doesn't have time to build up. The rest of the gears I make 9lbs

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Stock 3.27 gears

how high are you letting it rev in 1st?

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Up to 5800-6000 rpm

perhaps your boost gauge is tapped to a weak line or something.

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I'll check, but I think it's on a good vacuum line.

Weird. I'll check with Vortech, but I figured it was because 1st gear is so short anyways. I know my buddy with '03 Cobra makes boost in 1st gear, but he's got a roots blower.

Any chance my bypass valve isn't working right?

 

imblown-ru

New Member

Dec 6, 2005

247

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0

Roanoke VA

Mar 9, 2006

#6

• Mar 9, 2006

• #6

if its not working in first gear, it shouldnt work in any other gears. If your not giving it full throttle a centr. wwont make boost. it makes boost alot easier in other gears.

 

C

CJMcLean

Founding Member

Jul 26, 2000

120

0

0

Houston, TX, USA

Mar 9, 2006

#7

• Mar 9, 2006

• #7

if its not working in first gear, it shouldnt work in any other gears. If your not giving it full throttle a centr. wwont make boost. it makes boost alot easier in other gears.

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True. Kinda hard to keep full throttle when it smokes all the way through first and most of 2nd...

 

bryan0

New Member

Jun 9, 2005

175

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0

Bethel, CT

Mar 9, 2006

#8

• Mar 9, 2006

• #8

what the hell kind of setup do you have where you can get traction in 1st????

 

ragu1585

Member

Jul 22, 2004

152

0

16

Spring, TX

Mar 9, 2006

#9

• Mar 9, 2006

• #9

its because the car is too weak!!


haha im jp playin, dang hope you get that fixed before we line them up.. my car makes quite a bit of boost in first (well sorta).. well get that fixed and maybe ill see you around!

 

C

Chris00GT

Founding Member

Jan 28, 2001

275

0

16

York Springs, PA

Mar 9, 2006

#10

• Mar 9, 2006

• #10

Something isn't right. I have 4.10's and I see full boost in 1st gear. Boost is dependant on RPM. You have to look real fast, but mine spikes upto 15lbs of boost. Things to look for...belt slip, bad bypass, improper boost gauge install.

 

98GTVortech

New Member

Sep 30, 2003

242

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0

Philadelphia

Mar 9, 2006

#11

• Mar 9, 2006

• #11

I see good boost in 1st gear with 373. I agree maybe your guage isn't working. And if you are smoking your tires through out 1st and some of 2nd i would think that you are making some boost. GL with the problem it doesn't sound like anything is to wrong.

 

AmBo

Active Member

Feb 3, 2004

1,027

1

36

New Jersey

Mar 14, 2006

#12

• Mar 14, 2006

• #12

Ever get this figured out? Guage at a bad line?

Like it was said above, if you are smoking 1st, you are boosting. That or you are dumping the clutch.