Cheap for my c4
Thread Starter
7th Gear
Joined: Mar 2009
Posts: 7
Likes: 0
From: GUATEMALA CITY
Cheap for my c4
Hello from Guatemala, Central America:
In this country it´s very difficult to get hi performance parts for my L98 C4 (1990), and every thing you need, you have to order by mail to the U.S. and you have to pay a lot for shipping and handling from the U.S. to Guatemala an then a lot of money for the custom taxes, so you can´t order big packages.
My question is about cheap horsepower improvements. I have the 1990 245 hp L98 with 460 LE, the only item I have is the throttle body air foil.
I want to get more power for the street with a thermo master chip, K & N filter oand maybe a throttle body spacer (Tornado). What do you think about these items...? Do I have to change to 160 degree thermostat if I use the chip....? How about the engine pulleys....
How many HP can I get with every of the listed items....?
In the summit Racing catalog, I saw one very cheap low restriction muffler with the single inside and twin outside tubes.......do they work well......?
Thank you so much for your help............
Arturo......from Guatemala
In this country it´s very difficult to get hi performance parts for my L98 C4 (1990), and every thing you need, you have to order by mail to the U.S. and you have to pay a lot for shipping and handling from the U.S. to Guatemala an then a lot of money for the custom taxes, so you can´t order big packages.
My question is about cheap horsepower improvements. I have the 1990 245 hp L98 with 460 LE, the only item I have is the throttle body air foil.
I want to get more power for the street with a thermo master chip, K & N filter oand maybe a throttle body spacer (Tornado). What do you think about these items...? Do I have to change to 160 degree thermostat if I use the chip....? How about the engine pulleys....
How many HP can I get with every of the listed items....?
In the summit Racing catalog, I saw one very cheap low restriction muffler with the single inside and twin outside tubes.......do they work well......?
Thank you so much for your help............
Arturo......from Guatemala
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
Here's my .02.
Forget the chip
Forget the spacer
Forget the 160* thermostat
Do the following mods:
Remove the Frisbee
Do the throttle body bypass
Remove the front cats and replace the main cat with Magnaflow high flow cat.
Replace the rear mufflers with Magnaflow dual outlet mufflers
Replace the pulleys with a March aluminum under drive pulley set (replace belt).
Replace filter with new stock filter.
All of the mods will help your car and will do no harm.
Forget the chip
Forget the spacer
Forget the 160* thermostat
Do the following mods:
Remove the Frisbee
Do the throttle body bypass
Remove the front cats and replace the main cat with Magnaflow high flow cat.
Replace the rear mufflers with Magnaflow dual outlet mufflers
Replace the pulleys with a March aluminum under drive pulley set (replace belt).
Replace filter with new stock filter.
All of the mods will help your car and will do no harm.
Last edited by BADDUCK; Apr 3, 2009 at 10:43 AM.
Safety Car
Joined: Dec 2006
Posts: 4,290
Likes: 6
From: St Marys GA
From what I've seen, the under-drive pulleys are a YMMV type of thing. There are people running DD's with 23% underdrive crank pulleys, lightweight batteries and electric waterpumps who have no problem. Definitely gives a power bump though, and are pretty cost-effective.
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
Not so. The March 3 pulley set has a smaller pulley for the alternator which makes it turn at normal speed. I have had this set for 2 years and it charges and runs everything normally. It is called the "Power and Amp" set. Do some research don't just repeat what you hear.
Safety Car
Joined: Jul 2008
Posts: 3,966
Likes: 4
From: Made In America
St. Jude Donor '10-'11
Not so. The March 3 pulley set has a smaller pulley for the alternator which makes it turn at normal speed. I have had this set for 2 years and it charges and runs everything normally. It is called the "Power and Amp" set. Do some research don't just repeat what you hear.
Is this the set? This is the one I was considering along time ago. It looks very nice. Do you have a rough estimated hp gain on a mildy modded car? Full exaust, intake ect. Thanks!!!
http://www.ecklers.com/product.asp?p...2&dept_id=1768
Race Director
Joined: Jun 2004
Posts: 13,963
Likes: 709
From: WI
$280 wow, Summit has it for $230. I have that same March kit on mine without the aluminum alternator pulley and it costs far less. Summit has that also for $130.
http://store.summitracing.com/partde...5&autoview=sku
March part #4425
http://store.summitracing.com/partde...5&autoview=sku
March part #4425
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
Mine was the black painted aluminum set with the steel alternator pulley and a different part #, but it is basically the same thing. I got mine from Thunder Performance and it was under $150. I recommend the Power and Amp set it works well, and is easy to install.
Race Director
Joined: Sep 2003
Posts: 16,838
Likes: 341
From: Database Error Indiana
Not so. The March 3 pulley set has a smaller pulley for the alternator which makes it turn at normal speed. I have had this set for 2 years and it charges and runs everything normally. It is called the "Power and Amp" set. Do some research don't just repeat what you hear.
