North American Turbocoupe Organization



Ported RFE6, stock IHI...
vegas_ss Offline
Senior Member
#1
Now that I have a newly acquired RFE6 ported exhaust manifold, I see the port size mismatch between the stock IHI turbo inlet and the ported RFE6. Will that be a problem?

How difficult would it be to open up the inlet on the IHI to match the RFE6? Would the IHI need to be disassembled to port or can you safely stuff rags or ? to keep the debris out?

Would a dremel be sufficient to port the IHI inlet? What type of bit would work best?

What is the correct gasket to use for the larger RFE6 opening? The manifold came with one, but I would like to know where you get a replacement for future reference.

When you run a different turbo such as a t3/t4 hybrid, are the inlet ports larger or would they also benefit from porting?
1987 TC, 5sp, Boport Stage 3 Head/2.1 Cam
1996 Impala SS, DCM, Borla Cat Back, too much other stuff!!! (SOLD)
2009 Pontiac G8 GXP 6M, 6.2l LS3, Kooks Long Tube, Hi Flo Cats, Mild Cam
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RC Martin Offline
Posting Freak
#2
Sorry I can't be of much help, but who/where ported your RFE6 and where did you get the manifold? My TC has one and I'm just curious what they are worth and how much better they might be.
Thunderbird Turbo Coupe, Bright Canyon Red TuTone, Desert Tan Interior; 1 of 7 in this combo in 1984 according to Marti.  1 of 13,361 TCs in 84.
   Rebuilt, 3-Angle Valve Job, SYB37 "OE/Small" Slider Cam
   Full 3" Stinger Exhaust to Flowmaster 40, Gnari FMIC/Recirc/BPV, MBC @ 18psi, RF-E6 Manifold, Remote-Mount TFI, PC1 and Flowed 35# Injectors, Inline Walboro 255HP, Kirban AFPR
   Rebuilt Suspension -- KYB & Energy Suspension
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vegas_ss Offline
Senior Member
#3
I got it from Shay (rx7 turbo 2.3) on TF. He did it himself... he said it was the second one he did and it looks like a very nice job to me.


Attached Files Image(s)
           
1987 TC, 5sp, Boport Stage 3 Head/2.1 Cam
1996 Impala SS, DCM, Borla Cat Back, too much other stuff!!! (SOLD)
2009 Pontiac G8 GXP 6M, 6.2l LS3, Kooks Long Tube, Hi Flo Cats, Mild Cam
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Not B Anymore Offline
Posting Freak
#4
I don't know anything about porting so can't help ya there.

The turbo-to-manifold gasket is FEL-PRO Part # ES72811. This is a gasket set in which the turbo-to-manifold gasket is included. As far as I know, this is the only one there is. I'm not aware of a T-t-M gasket with a smaller opening.

When I bought my T3/T4 from Performance Techniques, the inlet port on the turbine housing was already matched to the size of the gasket opening so no extra work required. :thumbup:
Brian Leavitt
'86 TC 5-Speed -- MS2x w/COP | 83 lb. injectors | T3/T4 50 Trim Stage 3 .63AR | Full 3" Exhaust - No Cat | Motorsport FMIC | Ranger Roller | Ported E6 | Walbro 255HP | Kirban | 20psi | 120-amp 3G | 8.8" 3.55 rear | '03 Cobra Wheels
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vegas_ss Offline
Senior Member
#5
The felpro gasket is the bottom one... It is just a little too small for the RFE6 opening... I can probably trim a little as it's not more than a 1/8"

The larger gasket is quite a bit thicker but doesn't have a crush ring like the felpro.


Attached Files Image(s)
       
1987 TC, 5sp, Boport Stage 3 Head/2.1 Cam
1996 Impala SS, DCM, Borla Cat Back, too much other stuff!!! (SOLD)
2009 Pontiac G8 GXP 6M, 6.2l LS3, Kooks Long Tube, Hi Flo Cats, Mild Cam
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Not B Anymore Offline
Posting Freak
#6
hmmmm... Never seen that one before. :dunno:
Brian Leavitt
'86 TC 5-Speed -- MS2x w/COP | 83 lb. injectors | T3/T4 50 Trim Stage 3 .63AR | Full 3" Exhaust - No Cat | Motorsport FMIC | Ranger Roller | Ported E6 | Walbro 255HP | Kirban | 20psi | 120-amp 3G | 8.8" 3.55 rear | '03 Cobra Wheels
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Not B Anymore Offline
Posting Freak
#7
Perhaps this is the one you are wanting then? The opening looks similar to the one you posted.
http://www.summitracing.com/parts/tnt-30...4AodnlUAcg



Attached Files Image(s)
   
Brian Leavitt
'86 TC 5-Speed -- MS2x w/COP | 83 lb. injectors | T3/T4 50 Trim Stage 3 .63AR | Full 3" Exhaust - No Cat | Motorsport FMIC | Ranger Roller | Ported E6 | Walbro 255HP | Kirban | 20psi | 120-amp 3G | 8.8" 3.55 rear | '03 Cobra Wheels
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