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

Is FPR needed when Upgrading pump for Turbo swap

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Old 11-09-03, 01:42 PM
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Is FPR needed when Upgrading pump for Turbo swap

I've begun the fuel section part of the swap and this thought just crossed my mind. Im going to be using an MSD fuel pump 43gph, supports 500HP, and i just wanted to know if im going to need a Fuel pressure regulator?

Also, A little off topic, I think i got a s5 T2 tranny with my s4 motor (they were seperated, so i got to choose). Im not postive but is there a way that i could check? I know the mounts are different, but in what sense. The mounts at the back of the Tranny are angled, unlike the -se tranny where it bolts up to a flat area.


Anyways, Thanks

Last edited by JIMMY54; 11-09-03 at 01:44 PM.
Old 11-09-03, 02:06 PM
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Yes, you will need a rising rate fuel pressure regulator, all turbo setups need it.
Old 11-09-03, 02:11 PM
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I already got teh MSD pump... it works great... I didn't realize though that my turbo setup needed a FPR... where would be the best place to get one?

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Old 11-09-03, 03:17 PM
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go to www.jegs.com, aeromotive has a line of rising rate fpr's
Old 11-09-03, 03:45 PM
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So the stock t2 regulators on the fuel rails are to be taken off? Or do they stay or what? Theres no way going around getting one....?
Old 11-09-03, 04:06 PM
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You can use the original fuel rails and pressure regulator.
Old 11-09-03, 05:40 PM
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So then i wouldnt Need to get a new FPR? Good.
It makes sense since the original Fuel rails already have Regulators.
Old 11-09-03, 09:59 PM
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nope dont need one.
Old 11-10-03, 12:47 AM
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Re: Is FPR needed when Upgrading pump for Turbo swap

Originally posted by JIMMY54
I've begun the fuel section part of the swap and this thought just crossed my mind. Im going to be using an MSD fuel pump 43gph, supports 500HP, and i just wanted to know if im going to need a Fuel pressure regulator?

Also, A little off topic, I think i got a s5 T2 tranny with my s4 motor (they were seperated, so i got to choose). Im not postive but is there a way that i could check? I know the mounts are different, but in what sense. The mounts at the back of the Tranny are angled, unlike the -se tranny where it bolts up to a flat area.


Anyways, Thanks

the s4 trannys also have a flat mount and the s5 trannys have the angled mount you were talking about...

as far as fuel systems go are you going with EFI or blow through???
Old 11-10-03, 08:50 AM
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Im going with a Microtech LTX-8, 550cc Primaries, 680cc Secondaries with the MSD pump.
Old 11-10-03, 08:55 AM
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the engine

Not the greatest picture but ohwell

Last edited by JIMMY54; 11-10-03 at 08:57 AM.
Old 11-10-03, 10:07 AM
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back with rotaries

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yeah you dont need a separate fuel regulator. the stock one is rise rate. you need to change it if your planning to make high HP. like 300+ hp
Old 11-10-03, 03:47 PM
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You should really clean up that engine before dropping it in....The red pullies gotta go. Thats what you get when you go J-spec......
When i bought my motor, It had hand painted flowers on the manifolds, the turbo had a smily face in chalk, and a hello Kitty sticker on the intercooler....Wtf is that. I was too lazy to change it though......
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