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2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-31-2004, 04:22 PM   #1
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Does anyone know if the intense rockers made for the bonneville ssei'* make a lot of difference in hp? I am thinking of purchasing them along with a thrasher cai for better performance. I haven't done any mods to my car yet...but plan on adding these first. Also does anyone know if I should also add a smaller pulley (3.4") and a cooler thermo. and plugs if I add rockers. Or will rockers make the biggest difference?

Last of all, when will we be able to purchase a PCM, either from DHP or intense for our cars? I think a reprogrammed PCM would make the biggest difference in hp. I could be wrong though.

Basically I would like to get the '01 Bonny SSEI from a 7.5 sec. 0 - 60 to a 6.0 sec 0 - 60. Is that possible? If anyone knows what the best mods are for the ssei'* are, please let me know before I start purchasing...

Later,
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Old 03-31-2004, 04:46 PM   #2
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I've driven a car with Intense Rockers, the Intake, 3.4, headers, and some other mods. Nice ride Rogue has. He'll be in here soon...

400 LB/Ft @ the wheels, limited by the computer. For the Chip, you'll definetly want one before you hit that wall. If you'd like a custom one tailored for all your mods, then i'd wait till you know what you're doing. A Cam will give better power then rockers, but it'* harder to install.

A good start IMO to do mods... I'm sure i forgot a lot.

Intake (exhaust would be good)
Chip (unless custom)
3.4 Pulley
1.9 Rockers
Cam
Headers
3.2 Pulley

Then!
Mp112
Blowzilla
Turbo
The world
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Old 03-31-2004, 05:55 PM   #3
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Default Re: Rockers

Quote:
Originally Posted by jesse_bialas
Does anyone know if the intense rockers made for the bonneville ssei'* make a lot of difference in hp? I am thinking of purchasing them along with a thrasher cai for better performance. I haven't done any mods to my car yet...but plan on adding these first. Also does anyone know if I should also add a smaller pulley (3.4") and a cooler thermo. and plugs if I add rockers. Or will rockers make the biggest difference?

Last of all, when will we be able to purchase a PCM, either from DHP or intense for our cars? I think a reprogrammed PCM would make the biggest difference in hp. I could be wrong though.

Basically I would like to get the '01 Bonny SSEI from a 7.5 sec. 0 - 60 to a 6.0 sec 0 - 60. Is that possible? If anyone knows what the best mods are for the ssei'* are, please let me know before I start purchasing...

Later,
Here is my thread on the rockers. i picked up about 23whp (30 crank) and about the same in torque across the power band.

http://www.bonnevilleclub.com/forum/...ic.php?t=12144

I would recommend a 3.4 pulley and a cold air intake as well. A shift kit of some sort may prolong the life of your tranny as well as keep power to the ground. 6 seconds is easily achieveable and if i had to guess i would say with good traction im well below that. The rockers are going to give you more top end accelration but to truly take advantage of them you will want to raise your shift points up some with a custom PCM.

You can follow my dyno charts and mods tested here:

http://www.intense-racing.com/8ball.html

Todd
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Old 03-31-2004, 06:23 PM   #4
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Would you suggest doing the rockers, cai, pulley, and then having a custom PCM made for those mods. And if I have a custom one made, who should I contact?
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Old 03-31-2004, 06:29 PM   #5
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Quote:
Originally Posted by jesse_bialas
Would you suggest doing the rockers, cai, pulley, and then having a custom PCM made for those mods. And if I have a custom one made, who should I contact?
With a CAI, 3.4 pulley and rockes you will see a huge benifit (50-70 crank hp) even without a pcm. Going beyond those mods you will definately want a PCM. INTENSE is only currently offering PCM'* for 00 SSEi'* and i'm not sure what DHP offers in the way of stock bonnie PCM'* theirs may be custom. INTENSE should be offering 01 SSEi PCMs by fall but you can email Scott for more information on that. If you do rockers I would suggest Oil restricted pushrods and maybe some stronger springs (105#) to ensure the health of your valvetrain. Again Scott at INTENSE can help you with the specifics. Check out www.intense-racing.com for his contact information.
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Old 04-01-2004, 12:47 AM   #6
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I'm at about 6.0 secs now with the mods listed below in my profile. It was 7.5 stock.
I think to do better than that I will need a LSD. Traction limited.
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Old 04-01-2004, 11:32 AM   #7
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The rockers are a very solid power adder and well worth the effort. Combine them with cai and exhaust work and you can drop down to a 3.2" pulley for some great boost levels
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Old 04-01-2004, 01:51 PM   #8
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What is the best exhaust work for the buck? I really do not want to spend too much on exhaust, as I have heard that it doesn't gain you much hp? I guess I need some ideas on what is the best thing to do? Would it be better to coat the stock manifold or to get headers? I am not very familiar with exhaust systems.
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Old 04-01-2004, 01:55 PM   #9
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Quote:
Originally Posted by jesse_bialas
What is the best exhaust work for the buck? I really do not want to spend too much on exhaust, as I have heard that it doesn't gain you much hp? I guess I need some ideas on what is the best thing to do? Would it be better to coat the stock manifold or to get headers? I am not very familiar with exhaust systems.
In my opinion and based on my experience, you wont need exhaust work until you get moderatly modded. Our exhausts flow pretty well as is and we do not have the ubend problems the w-bodies do. I would suggest CAI/3.4 pulley first, then rockers, then scan your car for KR and decide what to do from there. Until your change your PCM exhaust work may not net you anything do the restrictive programming. Other than sound, headers have gained me nothing in the form of HP, however after my PCM is customized they will allow me to take advantage for further mods.
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Old 04-01-2004, 01:57 PM   #10
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How do you scan your car for Knock Retard?
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