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

Porting a GSL-SE

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Old Aug 16, 2002 | 12:06 AM
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Porting a GSL-SE

I am looking for a discussion on porting a GSL-SE. What can I get out of it (HP) and what type of port would you use? I have read that it is not work the time or money. But, Grass Roots Racing had Tri-Point do a "half-bridge port" on their 13B for their Rosprit.

I have looked at the archive and run a search and have not found much info. The one really helpful thread was (https://www.rx7club.com/forum/showth...=gslse+porting).

Some folks say pull the actuators for top HP, and other folks say leave them in for low-end torque.

What do you think?
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Old Aug 16, 2002 | 12:55 AM
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From: 3OH5
Port it.
Pineapple racing sleeves
Convert actuators to work off air-pump.

Run real fast.

win Races all the time.

Be happy.

Thank Directfreak.
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Old Aug 16, 2002 | 07:32 AM
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Port it.
Big street port.
Remove sleeves (they will imped the air flow if you port reasonably large)

about 200 flywheel hp with stock 9.4:1 rotors

PM me if you want more specs or dyno sheet
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Old Aug 17, 2002 | 06:21 PM
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Thanks for the feedback guys, is there anyone else out there with some thoughts on porting a GSL-SE?
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Old Aug 17, 2002 | 06:46 PM
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Bridge port. Life is too short for smooth idles.
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Old Aug 17, 2002 | 08:16 PM
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From: 3OH5
Originally posted by Kill No Cone
Thanks for the feedback guys, is there anyone else out there with some thoughts on porting a GSL-SE?
Recent Info on porting the GSL-SE
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Old Aug 18, 2002 | 07:49 PM
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Thank you for the link!
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Old Aug 18, 2002 | 09:48 PM
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Thought RB said this was useless?
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Old Aug 18, 2002 | 10:22 PM
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Not RB, Mazdatrix, and not useless, just pointless
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Old Aug 18, 2002 | 11:17 PM
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From: 3OH5
Well,

I personally owned a GSL-SE that was street ported after the engine needed a rebuild.

It was a monster, ran a 14.53 (best) and mid 14's all day long, on pump gas. BTW, it still had the entire interior, Stereo, subwoofers, etc.

Other mods were: E-fans, Headers, straight pipe to prima-flow, Cone Intake for the MAF, stock 6-port actuators, the sleeves, and the Fuel Injection.

So, I guess it may or may not work for you, but I smoked the living **** out of stock TII's in the 1/4 mile.
Stoplight to stoplight, was even more embarrasing for them.

Back then, (early 90's), the only street driven N/A rotary that beat me was a Suzuki Samurai with a 4port 13B Bridgeport.

I am just saying that It depends on who does the porting, and how it was done. I know it can be done quite well.
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Old Aug 19, 2002 | 08:25 AM
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I agree - guess why ....
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Old Aug 19, 2002 | 09:52 AM
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From: MISSISSAUGA, ONT. CAN
ANyone have the templates for the gsl-se?

how many templates are needed btw?
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