{L27 Performance}...Already did all the common, whats next? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 05-10-2005, 02:08 AM   #1
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Default {L27 Performance}...Already did all the common, whats next?

Alright.....

Since I will be stuck with this Stupid N/A setup until I get a real 3800, I want to make it run its best.

am wondering what else I can do to:

- Add a Little More Power
- Add Gas Fuel Economy

Please do not say L67 Drop, Turbo, or Rockers, since those are probably a little out of my price range


Here is what I have done so far:


For Air Delivery, I have installed a RX-4750 with a carefully drilled MAF Screen (cut out around the area away from the maf entrance)



Speaking of maf sensors, I also cleaned it out as much as possible



For plugs I will be running the NGK55-ix gapped to 0.060



for wires I have the stock coils and 8.5mm autolites



2.5" magnaflow high flow cat



drilled 180* Stat to keep it cool



So what else would help out this poor non-boosted motor?


Obvioulsy I will soon be replacing the fuel filter, air filter, IAC, and clean the thottle body. I may also replace the IAC sensor as well.




I was under the impression that the Series II L67 coils were better, but would they really matter with this motor?


Would the MSD coils be worth the cost?

Would a better muffler really help w/1/4 mile times or gas miliage?

Would A TPS mod do anything noticable?


Is there anything else or should I just call it good.

Also any guesses as to how much hp and torque I have with what I have done so far?
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Old 05-10-2005, 02:26 AM   #2
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Suspension, you wanna rail the corners around Sun valley and Galena, stanley etc right?
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Old 05-10-2005, 02:27 AM   #3
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with all I would have t osay you didnt really gain anything just regained lost power, you may have gained 2-3hp in total
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Old 05-10-2005, 02:28 AM   #4
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Quote:
Originally Posted by BonneMeMN
Suspension, you wanna rail the corners around Sun valley and Galena, stanley etc right?
um, please be assured my next car will have F41 and a pulley....

I am talking motor or drivetrain here only.
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Old 05-10-2005, 02:31 AM   #5
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What kind of budget? You can mod the TB MAF area, rockers, cam....
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Old 05-10-2005, 02:32 AM   #6
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I think an L67 swap with a Turbo and Rockers would do you nicely.

j/k

TPS mod could be useful if you're is off from the factory. Measure it.

MSD coild are a no-go.

Get a muffler, Magnaflow. Imroving VE imporves MPG>
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Old 05-10-2005, 02:34 AM   #7
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Quote:
Originally Posted by BonneMeMN
What kind of budget? You can mod the TB MAF area, rockers, cam....
Quote:
Originally Posted by Hans

Please do not say L67 Drop, Turbo, or Rockers, since those are probably a little out of my price range
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Old 05-10-2005, 02:54 AM   #8
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Quote:
Originally Posted by 1993 SLE
Quote:
Originally Posted by BonneMeMN
What kind of budget? You can mod the TB MAF area, rockers, cam....
Quote:
Originally Posted by Hans

Please do not say L67 Drop, Turbo, or Rockers, since those are probably a little out of my price range


at any rate...


Back on topic, other than that what else can I do to push this granny in the high 15s????
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Old 05-10-2005, 03:21 AM   #9
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- Manual Fan Switch
- CAI Box
- Bigger Intake Pipe/Filter - Insulate
- P&P Throttle Body
- Chip (more timing, higher shifts, delete EGR)
- ZZP Underdrive WP Pulley (you will have to mod it)
- New Dogbone
- Weight Removal
- Bypass A/C (doesn't really help)

Do a few of these mods and learn how to launch really good and get that beast into the mid 15'*.
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Old 05-10-2005, 03:35 AM   #10
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Quote:
Originally Posted by llBlazin_llLo
- Manual Fan Switch
- CAI Box
- Bigger Intake Pipe/Filter - Insulate
- P&P Throttle Body
- Chip (more timing, higher shifts, delete EGR)
- ZZP Underdrive WP Pulley (you will have to mod it)
- New Dogbone
- Weight Removal
- Bypass A/C (doesn't really help)

Do a few of these mods and learn how to launch really good and get that beast into the mid 15'*.
Have fun getting a chip for ANYTHING 95....and being the car that it is...It ain't gonna be cheap.
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