Perf increases.... - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-11-2006, 11:26 AM   #11
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Default Re: Perf increases....

Quote:
Originally Posted by wjcollier07
Quote:
Originally Posted by jr's3800
Quote:
Originally Posted by wjcollier07
Are there perf chips for my year? Or maybe an aftermarket PCM or ECM or whatever

I know DANG well that these LN3s can put out more than 165 hp...that is just a discrace

i know there are obvious things like a K&N, i already have Bosch +4 Platinum Plugs with like 'pensive wires...so what now, perf coils? Modified intake? HELP!!!

Also, has anyone in the club modded an LN3 and dyno'd it? What is the max hp i can pull out of this thing within reason?

Also, is there a Strut Tower Stabilizer Bar for this year?
I can't help you too much on performance...

But any STB from a 92-99 H or C body will work on your car... It makes a diffrence... I didn't think it would make the diffrence it does, but it sure did and I knew it the first time around the block...

And as for bosch plugs I had nothing but trouble with them in my cars and my friends car... As well as some chevy V8'*.... I'd use either NGK TR55, AC Delco Rapidfire3, Rapid fire 14, or R44LTS6 or R45LTS6<--- Ac Delco as well and there are a few that like champions as they can provide and easy start in the bone chilling cold weather...
jr, do u mean to tell me that you own 2 of these types and you didn't mod them? Are both 91s bone stock? But anyways, thanks for the help. Also, where can i get an STB to start with?

but i really want to know if there are perf chips out there for these cars...
Slightly Modded... I have the Delco Type II ignition system, NGK TR55 Plugs, An intake, Strut Tower Bar and as the original starter was showing signs of its getting weak I swaped it out for the same starter the SSEi supercharged 3800 uses... I want this car to ride and drive good over the power potential... But I have had a few thoughts on the 93-95 Heads( as they are cheap as dirt at the U pull it in Daytona ) as well as some porting of the intake, and possibly the heads just to smooth out the intake side and exahust side... But that won't happen for a while..

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Old 03-11-2006, 01:29 PM   #12
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Default Bosch

Ditto again on the Bosch.
Just had my Series II eat the Bosch plugs at 9,000 miles.
Still have the SSE with Bosch but the first hiccup and they are coming out.
Champion RS14YC6 plugs perform outdstanding in the 3800 engines that I have installed them. Its a hotter plug that gives you shurfire starts in the northern cold climates.
As for Bosch, they obviously have a reliability problem as countless BC members have attested to.
Average life is 9 - 17k.
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Old 03-11-2006, 02:35 PM   #13
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Default Re: Bosch

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Originally Posted by SSEBONNE4EVA
Ditto again on the Bosch.
Just had my Series II eat the Bosch plugs at 9,000 miles.
Still have the SSE with Bosch but the first hiccup and they are coming out.
Champion RS14YC6 plugs perform outdstanding in the 3800 engines that I have installed them. Its a hotter plug that gives you shurfire starts in the northern cold climates.
As for Bosch, they obviously have a reliability problem as countless BC members have attested to.
Average life is 9 - 17k.
Very true... I went through them in roughly 7000-8000 miles... I could not believe how bad they came out... Friend Buick 3.0 did the exact same thing...We compared plugs... It was a shock... The later we saw chevys with the HEI distributor burn out the Bosh Platinum plugs as well.. Several had used the plugs in their 305 and 350 engines and they could not figure out why they had bad driveability issues... We saw the bosh plugs, yanked them and what do you know... They were burned out.. Replaced them with some stock AC Delco plugs and problems solved... lol

Steer clear of the Bosh plugs

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Old 03-13-2006, 10:19 PM   #14
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What about boring it oversize? Adding the cam, like the stuff on series one performance? Porting the heads, etc..
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Old 03-13-2006, 10:24 PM   #15
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Well, for me, in terms of the Bosch Platinum +4, let me put it this way: the car ran better with old plugs of unknown age and mileage (aka, previous owner) than with the fresh +4'*.
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Old 03-13-2006, 10:30 PM   #16
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Quote:
Originally Posted by phoenix_flame220
well if your going to try to make a 4T60-HD in then you might as well put in a better engine too. If we all had a more powerful plant under the hood then we could keep up with the newer cars no prob (i hear our cars arent as fat as the new ones...)
Haha, that would be soo hilarious to like take the car to a meet and say "well here is my '89 but, YOU gotta see under the hood, (everyone is expecting some heavily modded LN3) and sitting there is a big shiny N*." HAHA. I don't even think that our gen'* subframe is strong enough, if someone was to do something like that, you would have to upgrade the entire suspension, steering, everything, but it would be cool...

I am planning..(when i get some more money in the bank) to get a smaller car, nothing special, something i will not get attached to, and drive that while i have this one in my garage completely torn apart so its easier to make mods...i dunno, it just sounds good to me...
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Old 03-13-2006, 10:43 PM   #17
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Quote:
Originally Posted by repinS
Well, for me, in terms of the Bosch Platinum +4, let me put it this way: the car ran better with old plugs of unknown age and mileage (aka, previous owner) than with the fresh +4'*.
HAHA!!!! Mine TOO!!! Mine ran good with some plugs that were at least 10 years old than these Bosch'* to tell the truth.

I think i have pics of the ACs i pulled....

oh yeah here.....

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Old 03-13-2006, 11:00 PM   #18
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Try here but you will be blazing a new frontier witht hat LN3.

http://www.seriesoneperformance.com/

also a CAI will go a long way.

http://www.bonnevilleclub.com/forum/...ic.php?t=15624
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