more top end?

ninety1gt

New Member

Aug 27, 2005

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san antonio

Feb 19, 2006

#1

• Feb 19, 2006

• #1

what can i do to get more top end with out doing heads and cam?

 

I

IntenseBlue

Member

Jul 10, 2005

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Feb 19, 2006

#2

• Feb 19, 2006

• #2

A blower or some spray.

 

S

seijirou

Founding Member

Aug 15, 2002

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DFW

Feb 19, 2006

#3

• Feb 19, 2006

• #3

pull the timing cover and retard the cam 4 degrees.

 

ninety1gt

New Member

Aug 27, 2005

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san antonio

Feb 19, 2006

#4

• Feb 19, 2006

• #4

seijirou said:

pull the timing cover and retard the cam 4 degrees.

Click to expand...

does this take away from low end power??




since i dont have money for heads and cam. do yall think some 1.7 rr help out?

 

T

Topdowncruise

New Member

Apr 7, 2005

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Canada

Feb 19, 2006

#5

• Feb 19, 2006

• #5

Not much since your heads/intake probably don't have the breathing to take advantage of the additional lift the 1.7's would give you.

 

S

seijirou

Founding Member

Aug 15, 2002

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DFW

Feb 19, 2006

#6

• Feb 19, 2006

• #6

retarding the cam and/or going with 1.7 rockers will give you more top end at the sacrifice of bottom end.
That's just what happens when you open up the maximum breathing capabilities of a motor.
Power adders for the most part give you more power everywhere.

 

2

2002BLGT

Well-Known Member

Dec 18, 2003

2,945

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59

Bedford VA

Feb 19, 2006

#7

• Feb 19, 2006

• #7

search ebay for used GT40 or even GT40p heads , and cam and new timing set doesnt cost that much ........trust me if you can find some heads for 300 - 400 bucks and then spend 200 on cam and timing set , once its on the car you will wonder why in the hell you waited so long to splurge and spend a few hundred on your car .......on a good day your car might put down 220 rwhp , dont seem like a lot but with used GT40s and cam 255-265 rwhp is a big big difference ......its almost as good as a 75 dry shot on a stock car ....but its there all the time

 

8

86bluecobra

Advanced Member

Dec 20, 2004

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B.C. Canada

Feb 20, 2006

#8

• Feb 20, 2006

• #8

i was going to say blower. but if you don't have cash for heads then i doubt you have it for a blower. You could go to a solid roller cam and valve springs to match so that you don't have valve float at higher rpm's.

 

S

seijirou

Founding Member

Aug 15, 2002

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Feb 20, 2006

#9

• Feb 20, 2006

• #9

I was just reading your sig.
What is a tps enhancer?

 

ninety1gt

New Member

Aug 27, 2005

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san antonio

Feb 20, 2006

#10

• Feb 20, 2006

• #10

seijirou said:

I was just reading your sig.
What is a tps enhancer?

Click to expand...

its made by caspers electronics, TPS voltage at Wide-Open Throttle (WOT) is a function of power enrichment (PE). If the voltage is below a certain point at WOT, the ECM will reduce the level of power enrichment and the engine will not perform to its potential. This device is completely transparent until 70% TPS, then it takes over and assures maximum TPS voltage for 100% Power Enrichment (PE) when you need it the most. The TPS TEC also corrects for low sensor voltage and "dead spots".

 

S

seijirou

Founding Member

Aug 15, 2002

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Feb 20, 2006

#11

• Feb 20, 2006

• #11

Taking care of low voltage and dead spots is neat.

 

ninety1gt

New Member

Aug 27, 2005

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san antonio

Feb 20, 2006

#12

• Feb 20, 2006

• #12

yea the car felt more responsive

 

M

Mark89coupe

Member

Apr 5, 2005

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Feb 20, 2006

#13

• Feb 20, 2006

• #13

Would'nt changing the valve springs help the top end(valve float)?
I had a few people tell me that the stock springs are shot after 40k miles. Is this true?

 

I

IntenseBlue

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Jul 10, 2005

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Feb 20, 2006

#14

• Feb 20, 2006

• #14

I've heard that they take a **** quickly, too.

 

M

Mark89coupe

Member

Apr 5, 2005

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Feb 20, 2006

#15

• Feb 20, 2006

• #15

With the mileage I have on my car the power falls off at 4k rpms.

 

8

86bluecobra

Advanced Member

Dec 20, 2004

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B.C. Canada

Feb 20, 2006

#16

• Feb 20, 2006

• #16

without proper valve springs you could be loosing a lot of top end power. always a good idea to have the valve springs that match the cam installed.