flex plates what one do i use?

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DenalosXJ

NAXJA Forum User

Location

marysville WA

• Jan 20, 2005

• #1

i got a 87 4.0 and im puting in a 95 HO do i need to use the HO flex plate to go with the 87 tranny ? also i had a borla header on the old 4.0 will it work on the 95 HO block? i plan on only swaping the block and head out and keeping all the Renix wiring.

 

kunaji

Essayons

Location

wisconsin

• Jan 20, 2005

• #2

Use the Renix flexplate. The header for the Renix 4.0 has an egr system on it, and I don't believe it will work with the newer head.

 

D

DenalosXJ

NAXJA Forum User

Location

marysville WA

• Jan 20, 2005

• #3

ok cool thanks sir ! and damn it i gotta buy a new borla

 

Ed A. Stevens

NAXJA Member

NAXJA Member

Location

Desert Beach So Cal

• Jan 20, 2005

• #4

Use the flex plate for the MPI system you are using (the RENIX plate with the 87' RENIX MPI, and the OBD1 plate if you convert to the 95 MPI).

The header should fit either head (the exhaust ports are the same).

 

D

DenalosXJ

NAXJA Forum User

Location

marysville WA

• Jan 20, 2005

• #5

i planed on using the Renix MPI system . will the egr on the 87 borla work with the H.O head if i use the Renix?

 

Ed A. Stevens

NAXJA Member

NAXJA Member

Location

Desert Beach So Cal

• Jan 20, 2005

• #6

DenalosXJ said:

i planed on using the Renix MPI system . will the egr on the 87 borla work with the H.O head if i use the Renix?

Click to expand...

Yes, just plug the header EGR port.

You can use the Renix intake with a little port matching (not the best, but you can keep the EGR), or use the HO intake after you build a little adaptor to fit the RENIX throttle position sensor on the HO TB (a much better power producing solution, and you plug the EGR).

The RENIX MPI with the HO intake and TB works well.

 

D

DenalosXJ

NAXJA Forum User

Location

marysville WA

• Jan 20, 2005

• #7

ok cool does anyone have a write up on that adapter plate ? i searched a bit with no luck.

 

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prm99v6

NAXJA Forum User

Location

Newark, DE

• Feb 13, 2005

• #8

i just swapped an ho intake manifold onto a renix head. it worked fine. I also used a borla header from that old renix motor also. I plugged the egr port. I did have to get the 91-91 throttle cable bracket and cable from a junkyard. that all went fine. I wired it up and it cranks but no spark. then i realized that the flex plate is different for the ho. I need to change to that one, because i am using the ho cps and wiring harness. good luck