Why does everyone want their blazer to go faster ?

Just an observation.....

Some folks on this forum seem to want their blazer to perform like a sports car, high horsepower etc....

I am all for clean running and some upgrades, but keep in mind that if it's like my 99 it's 4350 pounds of steel (4-dr 4wd) !! That's alot for a little 4.3L to lug around.....just seems kinda funny.....

Like BlazerLT says...if you want speed...getta mustang, or vette or something....

Anyway have a nice holiday all and thanks for your help in the past.!

Good point...Guess they just want to beat the emergency personel to the scene of thier wreck...Drive, Enjoy, and be Safe over the Holidays..

Why am I putting a v8 in my blazer? Because I can!

Thats why i call the blazer and jimmys modern day station wagons. 4 doors and 4x4 = Family vehicle. So I own 2 of them for just that. If I want to go fast I pull out the 69 camaro, if i want to cruise I get out the 65 chevelle convt. But others may not have the choice in life. Guess thats why nascar came out with truck racing. 53% sales were trucks and suv's. To each their own.

Well I don't think it's all aobut speed, if it were I would get a stang or a vette.
But how much easier is that then replaceing that 4.3L with a V8? I think it's kind of a pride thing. Something to show off to your pals. If a avarage person look'd at a stock mustang, 05, they'd say 'Thats cool'; but if they saw a Blazer with a small block V8 pushing 350 HP and all polished up they'd be speachless. Shure if it adds alittle more 'giddy-up-n-go' at the same time, the question is why not?.

For me it's an economic thing....If I dropped, bagged it, repainted, put 20's on it, decked out with a super stereo, or maybe add hydraulics...that make my farmer neighbors say..."what-da-hell-did-you-do-dat-for?"

But I understand....it's a testosteronial-mechanical thing...totally understand...just the aspect of putting a high performance motor in a tank rather than a sleek stripped down modified honkin Extreme 2-dr.

That said....I will be building up my tool box with a whole set of new tools, and a rolling box, air tools...all to the wife saying...what-da-hell-ya-gonna-do-wit-all-dem tools?" I say....work on my blazer, my other truck....so I guess I understand...... :iceslolan

Have you noticed that GM has basically cut their stationwagon lineup (except for the vibe) and is slowly discontinuing their minivan lineup (byebye astrovan&safari). Picking up the slack are those new envoys and trailblazers which ARE today's mini-vans and stationwagons. They have no offroading capability and are designed for comfort and luxury for a family (plus they look like whales). Who knows how long GM will continue the blazer and zr2 line... I think it's too bad for the SUV/ truck community that these "SUV's" are so pricey and are somewhat unfeasible for use in any offroad or even "snowy road" application.

I don't consider racing my jimmy, but it is a whole lot of fun to go places in it. I like driving it on snowy trails to go ice fishing or through farm fields to go play paintball. Though my back seats are kind of cramped for 3 people(who cares?- those rating polls can shove it!), I wish GM would keep capability in mind when they think up new vehicles.

The Chevy S-10 Blazer is as most have stated is running for all it's worth already. I think they run fine stock. I can leave black marks on the road with mine. The speed limit in most states is 65mph if that's not fast enough I pity your wallet when the cops catch you. Here in Illinois the fine is pretty steep for speeding. It's a heavy vehicle with a small engine. Wanna go fast get another vehicle that goes fast.

Hypocritically I would put a V8 in mine if I was forced to spend a couple grand on it (or had to replace the engine anyways). It would be even more fun for offroading and driving around town to show my ZR2 buddies. Plus then I could be more than just a spectator at the Woodward dream cruise.

I'm sorry but I would not prefer speed over torque. I would rather be able to go further offroad or tow more than a souped up anything. From what I understand more horsepower means less torque which means less ability to do what I want and more ability to just sit there and spin. If I do any mods to my vehicle it would be to raise it up maybe add a different motor to get more pulling power (evenr though of going diesel) but then I came back to reality. College student, loans out my butt, used Blazer that needs constant upkeep, why not just keep what I got (except for the wheels already changed them to Bridgestone duller 3s) and save the rest of my money for an eventual pickup truck to do my hauling and maybe keep the blazer for family if I ever get family.

More hp dosent mean less torque

I'm not in it for the speed, i want the power...

Faster Blazer, reminds me of the Oxy-moron Jumbo Shrimp

I'm sorry but I would not prefer speed over torque. I would rather be able to go further offroad or tow more than a souped up anything. From what I understand more horsepower means less torque which means less ability to do what I want and more ability to just sit there and spin. If I do any mods to my vehicle it would be to raise it up maybe add a different motor to get more pulling power (evenr though of going diesel) but then I came back to reality. College student, loans out my butt, used Blazer that needs constant upkeep, why not just keep what I got (except for the wheels already changed them to Bridgestone duller 3s) and save the rest of my money for an eventual pickup truck to do my hauling and maybe keep the blazer for family if I ever get family.


Without torque, there is no speed. (unless you're driving downhill)

More hp dosent mean less torque

my mistake now I learned something new. I still wouldn't make it go faster there is no need for me.

my mistake now I learned something new. I still wouldn't make it go faster there is no need for me.

But then again you don't HAVE to exceed the speed limit, but you can get to it faster... 0 to 35 in 1 second.

Getting there fast is still illigal, it's called exhibition of speed, pretty hefty fine too...

Oops, nevermind then...

It's all about making the engine more efficient and fun to drive.

But, there is a limit when it get s little pointless and the money would be better spent on something that is meant to go fast and is able to control itself.

remember, it is an SUV and they are not exactly the most stable vehicle on the road.

Exactly, if you've got a 4X4, treat it like one, a sports car, same thing, mix-and-matching hurts the vehical and people if you're stupid about it...

just settling the issue of HP vs torque:

a vehicle can have high torque AND HP, but NOT AT THE SAME RPM. At lower RPMs you will have high torque and low HP, but as RPM increases, the torque decreases and HP increases. Reasoning for this fact has to do with mechanical systems, mainly the gear ratios of the vehicle.
I can get into greater detail if anyone is interested. Or, just check out www.howstuffworks.com and I'm sure you'll find some good information.

Actually, you are completely correct.

But also to note, CPI Win W 4.3L in 1992-1995 blazer's , jimmys and s10s have a IMTV valve which opens in the upper plenum to allow the torque curve to move farther up in the rpm range at 3000rpms at over 30% throttle.

Just an observation.....

Some folks on this forum seem to want their blazer to perform like a sports car, high horsepower etc....

I am all for clean running and some upgrades, but keep in mind that if it's like my 99 it's 4350 pounds of steel (4-dr 4wd) !! That's alot for a little 4.3L to lug around.....just seems kinda funny.....

Like BlazerLT says...if you want speed...getta mustang, or vette or something....

Anyway have a nice holiday all and thanks for your help in the past.!

me, i just wan't power in anything thing i drive weather blazer, pinto
vw don't matter, thats what a gearhead is, back in the mid 80's
i put a v8 in a pinto hatch back pushing 370hp, i had that thing doing wheelies, for speed, whocares if its illegal, thats why you try not to get cought, if you do its just another ticket.

it's dumbasses like you that killed 3 of my brother in one shot, go to hell...

SlammedClipse what was the responce you sent me all about????

Actually, you are completely correct.

But also to note, CPI Win W 4.3L in 1992-1995 blazer's , jimmys and s10s have a IMTV valve which opens in the upper plenum to allow the torque curve to move farther up in the rpm range at 3000rpms at over 30% throttle.


BlazerLT What's an IMTV valve?

Intake Manifold Tuning Valve

It is the round valve under the vortec plate on top of the engine.

It opens up at 2700-3200rpm with a 30% throttle angle to increase intake efficiency for additional torque at higher rpms.

With this system you get torque right through the rpm range.

hey derblazer, it wasn't you i was responding to it was that dumbass blazing...

SlammedClipse I figured it out sorry.

hitting a steep incline, pushing through mud or pullin a buddy out of a snowbank (been there alot) I think a little extra horses or more torque would be nice. But I do have to admit, that 4.3 VORTEC does pack a punch and it has the capabilities for improvements or modification. If I had the money, I would like to throw a small 8 under the hood, along with a 6" s-lift, 35" mudders and so on, and so on. But for my budget, I'm plenty happy with the air shocks, slight t-bar crank, and the power programmer. I say, if you got the money and the time, go for it.

go for it within reason, don't be stupid if you can't drive...

it's dumbasses like you that killed 3 of my brother in one shot, go to hell...

i been driving for 28 years with not one single crash,
people that crash more are the ones going 40 in left lane in a 65,
here your blaming everyone that goes a little fast or answer you don't like for your famaly misfortune, that wasn't my doing. it was probly the doing of someone that don't know how to drive, not me,
why i am responding to such an ignorent respone, god only knows,
but its my last one on this subject

i heard that forced induction on a CPI motor isn't good or makes little to no performance gain. is this true?

i was just saying it was dumbasses trying to fit a v8 into something it's not supposed to fit in, and driving it like it's not supposed to be driven causes accidents, i wasn't saying you were a bad driver, i'm saying people like you are the reason why most accidents happen...

Better change them gears, front and rear when going to them 35's.

forced induction any one?

hitting a steep incline, pushing through mud or pullin a buddy out of a snowbank (been there alot) I think a little extra horses or more torque would be nice. But I do have to admit, that 4.3 VORTEC does pack a punch and it has the capabilities for improvements or modification. If I had the money, I would like to throw a small 8 under the hood, along with a 6" s-lift, 35" mudders and so on, and so on. But for my budget, I'm plenty happy with the air shocks, slight t-bar crank, and the power programmer. I say, if you got the money and the time, go for it.

It is not about power it is about gearing.

Use 4lo and a 4 cylinder could pull out a big rig.

*Warning: Some opinions expressed could be exaggerated*

i heard that forced induction on a CPI motor isn't good or makes little to no performance gain. is this true?

Untrue... When whipple made the turbo for the 92-95 CPI motors it gave a nice 12 psi boost (brought up to around 250 HP) The problem was that it was a design based on the sy/ty turbo and whipple was sued by GM and whipple killed it. You can still find them once in a while on ebay...Almost bought one a year ago but didn't have the money...:(

so if i was going o have a custom braket built and custom tubing would i be able to do it. do you know where it sat? do you know if anybody still has the plans for it?

Everything is doable if you have the money and the time. I stress the money portion.

No kits are available since early 1996 when the new injection system came in.

No one makes the CPI kit seeing it was killed before the aftermarket really got to making a system for it in mass quantities.

how do you hook up a tach? which wire go where. its a super pro. it has a red wire,green,white and black. which wires do i hook up and to what? it does have a light on it.

metallica21156 have you replaced your cpi unit yet?
-just asking

replaced the CPI and nut kit last week. i was woundering how true is the tach in my truck. i know somebody that has a 98 pickup with a 4.3 and if they rev it it goes up the same speed but falls alot faster then mine. it seems that the CPI motor takes a long time to rev down. is this true or is the tach slow to move?

It won't drop immediately.

Takes a second to drop down.

what i mean is that it takes longer to fall then a 96 and up. is it telling the true RPMs or is it slow and the 98's RPMs fall the same but since its newer itss more true then the 95? also, what is a 95 rated HP at the wheels and from the fly wheel. does anybody know the % of power loss?

I wouldn't compare the two engine rpm drop rate. As long as it is dropping, you are fine.

1995 CPI are 195HP at the flywheel and 150-165 at the wheels. Depends on if you have a 4x4 or 2x4.

which has a high out put? it just changes at the wheels right? its 4X4 so what would that be?

HO is the CPI which is 195HP at the crank and 150-160 at the wheels.

what is the newer 4.3's rated at?

180HP at the crank.