1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

S5 Exhaust manifold on SE??

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Old Dec 22, 2002 | 07:37 PM
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S5 Exhaust manifold on SE??

Trust me, I know that a RB exhaust would be better, but if a broke person had a s5 exhaust manifold laying around, would it provide any HP or torque improvement over a stock GSLSE manifold?

Anyone??
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Old Dec 22, 2002 | 07:43 PM
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I doubt it, just my opinion tho. But if it had one of them there squirell cages on it, it would definately be better
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Old Dec 23, 2002 | 12:25 AM
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i don't think it would either, plus you'd have to spend money to have a downpipe made. just save and wait for the RB ...
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Old Dec 23, 2002 | 12:27 AM
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Originally posted by diabolical1
i don't think it would either, plus you'd have to spend money to have a downpipe made. just save and wait for the RB ...
ditto.
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Old Dec 23, 2002 | 08:26 AM
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james, my manifold isn't lying around. but if you buy me headers then i'll give it to you.
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Old Dec 23, 2002 | 08:41 AM
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Originally posted by jeremy
james, my manifold isn't lying around. but if you buy me headers then i'll give it to you.
Still wanting someone to buy you a RB exhaust huh? LOL That would be a good trade, a stock s5 mainfold for a racing beat exhaust
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Old Dec 23, 2002 | 10:00 AM
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actually i figured james would try to steal mine unless chris has a s5 manifold lying around. and trim that sig mike, jeez.
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Old Dec 23, 2002 | 10:50 AM
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Originally posted by jeremy
and trim that sig mike, jeez.
Yes, please! Just put a nice pic of the car with some details.

The Oil filter isn't that important in a sig...

Here you go:
OLD Sig:
1985 Mazda RX-7 GSL (Runs like a freaking bat out of hell!/Needs tuning )Cosmo 13B, stage 4 BNR Supercars s5 turbo and manifold, port matched turbo entrance, ported manifold, p trim , 60-1 compressor wheel, 360 degree thrust package, turbo smart type 2 blow off valve, turbosmart dual stage boost controller with hi/low cabin switch, 1500 cc secondaries,NOS High Pressure/High Volume Fuel Pump, Fram 200 psi fuel filter, Haltech e6k firing s4 t2 coil packs 3 bar map, haltech tps wideband o2, 3" racing beat downpipe, 3" custom exhaust stright back to magnaflow stainless steel muffler, racing beat 17 # flywheel, SPEC stage 3 ceramic 4 puck disc and pressure plate, Atkins thermal pellet replacement, Isuzu large NPR intercooler, custom intercooler piping, flex-a-lite fan cooled Perma cool 450hp oil cooler, stainless steel oil cooler lines, s4 turbo II tranny, racing beat 13b -> 12A engine mount, autometer guages (a/f, egt, 30psi boost/vac) , 0-100 PSI Autometer electric fuel pressure guage, 2nd gen dual A pillar pod, black magic fan, optima red top battery relocated to drivers side storage compartment, custom made 3 inch driveshaft, totally rebuilt steering box with new parts, K & N 3" id, 4-5/8"- 6"x9"L cone filter, taylor custom 8.0 mm race plug wires. Pioneer DEHP740, Pioneer DSP9200, A/D/S 4 channel amp, MTX Terminator series MTA-250 and tons more stuff. Alpine 8040 alarm, with window roll up, power door locks, radar sensor, Impact, motion sensor, all points of entry monitored, 2 way paging system.
New Sig:

1985 Mazda RX-7 GSL
Cosmo 13B
Haltech E6k
Stage 4 BNR Supercars, Series V Turbo with mods!
Isuzu large NPR intercooler
Turbosmart type 2 blow off valve
Turbosmart dual stage boost controller with hi/low cabin switch
3" custom exhaust with Magnaflow muffler
Autometer guages (a/f, egt, 30psi boost/vac,fuel pressure guage)
And a shitload more that I am neglecting to list!


What do you think? It's a start.

Last edited by Directfreak; Dec 23, 2002 at 10:59 AM.
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Old Dec 23, 2002 | 11:21 AM
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Or go with no sig at all so 56ker's like me can browse faster

Don't remember the guys name but the other day I saw someone that had a damn movie in his sig. Think it was ~ 850k
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Old Dec 23, 2002 | 11:40 AM
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Stock S5 manifolds suck. No power gains for you!

Scrimp, save, and keep your eye on the used parts ads.
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Old Dec 23, 2002 | 12:19 PM
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where there any good na manifolds that came out of mazda?
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