Higher Rpm ?

J

j l smith

Member

May 29, 2017

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west liberty ky

Oct 9, 2017

#1

• Oct 9, 2017

• #1

1993 mustang gt 302 ported gt40x heads b303 cam 1.5/8 headers 1.72 roller rockers stock intake & t/b , the car runs good but it pulls hard till about 5500 rpms then its done I think it should pull till 6000 or so any info guys

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

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Oct 9, 2017

#2

• Oct 9, 2017

• #2

Stock intake and TB are hurting you

 

Reactions: Hoytster

J

j l smith

Member

May 29, 2017

60

4

18

west liberty ky

Oct 9, 2017

#3

• Oct 9, 2017

• #3

Mustang5L5 said:

Stock intake and TB are hurting you[

Click to expand...

 

J

j l smith

Member

May 29, 2017

60

4

18

west liberty ky

Oct 9, 2017

#4

• Oct 9, 2017

• #4

yeah I;m sure its is I'm looking for a good used one just haven't ran across one yet

 

a91what

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Oct 9, 2017

#5

• Oct 9, 2017

• #5

Explorer intake same as 93 cobra. Cheap upgrade comes with 65mm TB

 

J

j l smith

Member

May 29, 2017

60

4

18

west liberty ky

Oct 9, 2017

#6

• Oct 9, 2017

• #6

a91what said:

Explorer intake same as 93 cobra. Cheap upgrade comes with 65mm TB

Click to expand...

what size t/b is my stock one

 

a91what

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#7

• Oct 9, 2017

• #7

55mm

 

J

j l smith

Member

May 29, 2017

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west liberty ky

Oct 9, 2017

#8

• Oct 9, 2017

• #8

small then

 

a91what

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#9

• Oct 9, 2017

• #9

You need intake manifold, throttle body and maf.

The explorer TB is 65mm however the intake will accept up to a 70mm.... 65mm is more than adequate for what you have.

MAF from a 94-95 5.0 is a direct replacement for yours and requires no recalibration. Size I believe is 70mm?? Either way it's an upgrade over the stocker

 

J

j l smith

Member

May 29, 2017

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18

west liberty ky

Oct 11, 2017

#10

• Oct 11, 2017

• #10

I would like to find a good used intake but not the gt40 one because im got more mods im gonna do later on

 

JD1964

there is enough sticking out to grab on to

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Oct 14, 2017

#11

• Oct 14, 2017

• #11

I agree the stock intake and tb are limiting.

There’s another simple thing that might help. Many people increase ignition timing as high as 14 degrees. If you’re near that, try dropping it back to 10 or 12. You’ll have slightly less throttle response on the low end rpms but should pick some up on the top end. Top end is where you want it on these small blocks

 

J

j l smith

Member

May 29, 2017

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west liberty ky

Oct 15, 2017

#12

• Oct 15, 2017

• #12

yeah I have the timing at 14 now

 

JD1964

there is enough sticking out to grab on to

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Oct 15, 2017

#13

• Oct 15, 2017

• #13

j l smith said:

yeah I have the timing at 14 now

Click to expand...

For experiment, drop it to 10. Take it for a spin and see if it climbs better on the top end.

 

J

j l smith

Member

May 29, 2017

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18

west liberty ky

Oct 15, 2017

#14

• Oct 15, 2017

• #14

I have tried that and it pulls better at 14

 

J

j l smith

Member

May 29, 2017

60

4

18

west liberty ky

Oct 15, 2017

#15

• Oct 15, 2017

• #15

I really just need to buy a intake and injectors and have it tuned