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S4 t2 in a gslse. Some questions on mods

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Old Nov 13, 2014 | 09:05 AM
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1986rx7se's Avatar
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From: Pottsville PA
S4 t2 in a gslse. Some questions on mods

Hey guys. I have an 85 gslse that I am currently in the process of building. It currently has a JDM s4 t2 swap. I'm curious if the mods I am doing are compatible with each other, and if you guys would do anything different. I am not looking for an all out drag car. I am trying to make a fun, streetable car that is as reliable as a turbo rotary can get.
Heres the mods that are currently done to the car:
Haltech E6K
Griffin FMIC with 2.5" piping.
stock S5 turbo
Racing beat down pipe
550 primary injectors
720 secondary injectors
Greddy elbow on stock s4 turbo manifold
Stock GSLSE external fuel pump

The motor will be rebuilt at Speed1 Allentown. I am debating on what kind of porting I want to get done. Most likely a street port. I only want to port if it takes advantage of my mods listed. I do not want to port the engine, and have it restricted with my mods.

I am still trying to determine what fuel pump to run. I do not want to run a walbro 255. I am currently thinking an MSD 2225. 43GPH @40PSI (160LPH). Is this enough fuel?
I am also wondering if my injectors are sized right. I really want a solid setup with no "weak links". 250hp or more to the wheels would be really nice.
This is my first big rotary project, and I'd love to get it right. Can any of you chime in and give some advice as to what things you would do differently, or some suggestions? What kind of power do you think I will be seeing with these mods? I've searched a lot, but I couldn't find an exact match to what I am building. Thanks in advance for the replies!
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Old Nov 13, 2014 | 09:41 PM
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I would consider the bigger fuel pumps they make nowadays, the 340lph. You were able to get a good jdm s4 t2 engine? Everything depends on budget. Getting everything running with a good engine would be #1, but I would not expect the stock turbo to put out too much power.
Eventually your going to want a t2 diff with your choice of front diff mount reinforcement and a bigger turbo if your looking to drag race, or solid axle.
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Old Nov 15, 2014 | 05:34 PM
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FC3S Pro v2.0: From Mild 2 Wild - Power

I highly recommend reading this .

It'll give you an example.

I'd go with a 255lph fuel pump either way, for the extra safety it would be worthwhile.
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Old Nov 18, 2014 | 11:44 AM
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1986rx7se's Avatar
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From: Pottsville PA
Originally Posted by GrossPolluter
I would consider the bigger fuel pumps they make nowadays, the 340lph. You were able to get a good jdm s4 t2 engine? Everything depends on budget. Getting everything running with a good engine would be #1, but I would not expect the stock turbo to put out too much power.
Eventually your going to want a t2 diff with your choice of front diff mount reinforcement and a bigger turbo if your looking to drag race, or solid axle.

A good jdm s4 t2 engine!? What's that? haha

My motor has bad oil control seals. Gotta love them JDM importers!\

Thanks for the info.
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Old Nov 18, 2014 | 11:45 AM
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1986rx7se's Avatar
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From: Pottsville PA
Originally Posted by Jager
FC3S Pro v2.0:* From Mild 2 Wild - Power

I highly recommend reading this .

It'll give you an example.

I'd go with a 255lph fuel pump either way, for the extra safety it would be worthwhile.
Thanks for that link. It makes it almost too easy lol.
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Old Nov 20, 2014 | 02:00 PM
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arghx's Avatar
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From: cold
I really think you should consider upgrading to a newer Haltech, at least a Sprint RE. Those E6K are really old and iirc not supported anymore.
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