Engine management unit

Anyone tried and engine management on their gp. Which brand would u go for? haltech? motec? Can you modify anything significant beside the air/fuel mixture? can you modifty shifting?

by the way what is this RamChargers L67 Scanmaster?

The scanmaster has been around for awhile, there's a few people giving it props on the ClubGP board. You can go there to find out all you want to know.

Okay the opinion part - I feel there are better scanners for your car. I use the LS1M, but you should decide what is best for you. There are several others out there, but I can't remember the names. I already had a palm so the LS1M was the cheapest route for me to go. If you have a laptop, Autotap is widely considered the best scan software but there are many others.

As far as PCM programers...I could be wrong on this one, but the only two I know of that provide you with any real flexibilty are the ones made by DHP and HP tuners. You'll find all kinds of debates over these two.

If you just want a pre-programed PCM check out Intense, DHP, and C-Ya Racing...again heavy debate over which is the best.

Choices...what would the world be like with out them.

Well I already have a jet-chip which changes the fuel-air ratio but I want something with more functions that would be used with my laptop.

Okay I have narrowed it down to these three:
scanmaster
autottap
EFI Live
Which one would you choose? And can you change shifting point with anyof these guys?

None of those allow changes in your PCM....They only monitor what is already there...

Digital HorsePowers and HP tuners are the only ones that allow you to make changes

"None of those allow changes in your PCM"
The EFIlive does but unfortunatly its for 5.7L 1999- engines.
I already have the jetchip for HP and I'm happy with it. The only thing I needed was to change shiftpoints so I just bought a thrasher shift kit along with the autotap scanner.

"None of those allow changes in your PCM"
The EFIlive does but unfortunatly its for 5.7L 1999- engines.
I already have the jetchip for HP and I'm happy with it. The only thing I needed was to change shiftpoints so I just bought a thrasher shift kit along with the autotap scanner.


Thrasher shift Kit will not change shift Points....

I believe Zzp in cooperation with dhp has a pcm with an add on A\F\timing control unit. You hook it up in the car and you can advance timing as well as A\F ratio. Alot of guys on the clubgp seem to have given it good reviews although I can't say I've used it personally. Dhp will custom program just about anything for the L67 to match your mod combination\aftermarket gearing\shift points etc.

"Thrasher shift Kit will not change shift Points...."
Thrasher shift causes faster shifting in a way it does change the shifting point(when the clutch is realeased)

"Thrasher shift Kit will not change shift Points...."
Thrasher shift causes faster shifting in a way it does change the shifting point(when the clutch is realeased)


Not really...it only makes shifts happen faster not sooner or later
The computer will still command the Transmission to start a shift at the same point in the RPM range..you will not see any differance as far as shift points go...you will only feel the shift more

"Not really...it only makes shifts happen faster not sooner or later"
That's exactly what I said. Hehe
Right now each shift takes like 1sec for me and by the time I'm in next gear the rpm is higher so "in a way" it does change the shifting point. Get it?

lol you have a misconseption of what a shift point really is....

The shift point is when the PCM tells the Trans to shift....Thrasher shift Kit does not change this...

your RPMs my change a little but not much...maybe 250 (doubtful) at the most for a shift to happen now

My Car has a custom PCM....My shift Points are at 6000 at WOT...by the time the shift happens I am usally at 6100 to 6150....
your car shifting at around 5500 (stock) will take even longer to jump in the RPM range...with a stock valve train

I hate to burst your bubble but the shift kit will do very little for your shift points

BTW: I have no thrasher shift kit

That reprogrammed pcm is crap it just makes you feel like your shift is faster but the truth is you can only have a better shifting mechanically! Thrasher is the real shit believe me. I saw one installed on a buick and the guyz 1/4 mile time dropped by .4sec
by the way I just noticed that my shifting point is at 6 too maybe its the jetchip maybe the pot i smoked.

That reprogrammed pcm is crap it just makes you feel like your shift is faster but the truth is you can only have a better shifting mechanically! Thrasher is the real shit believe me. I saw one installed on a buick and the guyz 1/4 mile time dropped by .4sec
by the way I just noticed that my shifting point is at 6 too maybe its the jetchip maybe the pot i smoked.


LOL I know you think your right...but your wrong....

I have seen the Thrasher Shift kit installed as well...a couple members in our club have it installed...it does not alter shift points....and call the PCM crap all you want but you will not get to low 12s or even low 13s without all that PCM "crap"

And there is no "feel" like the shift is faster at all with the PCM it happens later in the RPMs with the PCM.....thrasher only makes it feel faster....

you will see when you get your scan tool....If I was you I would do a scan before and then after and see that the shift points will remain the same....unfortuneatly cars now-a-days are computer controled and not all that "mechanical"

but im done argueing with you until you do your research.....you obviously have your facts mixed up here

aight I'll try it and you should try gettin a camshaft all other upgrades are nothin without it.
Oh and what do you think of the trans interceptors. Leaving out the speed limiter removal and hp gain does it do the same change in shifting point as ur pcm?

aight I'll try it and you should try gettin a camshaft all other upgrades are nothin without it.
That is incorrect as well....many people are running high 12s without a Cam.


Oh and what do you think of the trans interceptors.

It is Junk

Leaving out the speed limiter removal and hp gain does it do the same change in shifting point as ur pcm?

No

Quote:
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Originally Posted by behvah78
aight I'll try it and you should try gettin a camshaft all other upgrades are nothin without it.
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That is incorrect as well....

Hehe, I looked at your car and for a second there I really had a believed in you. But saying that camshafts are not needed for your car!! I just realized you know nothin of cars dude. But I'm sure once you buy one u'll be like this is the shit and advertising for it all over the forum.

No I was disagreeing with your statement saying all other upgrades are worthless with out a cam...that is pulling a lot out of your ass

sure a cam is the best bang for your car but it is not a must have to make your car go fast....if your shooting for low 12s then yes a cam will make it easier...

but your broad statement saying all other mods are worhtless without is pretty stupid....

i was wondering behvah78 what the function of a camshaft is?

Camshaft is the rod which turns on its self and opens and closes the exhaust and intake valves. Some cars don't have it and instead have a valve timing electronic control(Vtec). Changing it would give you about 35-40hp at the wheel costs $500 and costs about $800 to install.

i thought that a vtec engine uses two cams, one cam during low rpms and then it switches to another cam at a certain rpm? what about rocker arm ratios? what happens when you go to a higher ratio like 1.6 to 1.9?

Camshaft is the rod which turns on its self and opens and closes the exhaust and intake valves. Some cars don't have it and instead have a valve timing electronic control(Vtec). Changing it would give you about 35-40hp at the wheel costs $500 and costs about $800 to install.


Well your wrong about VTec...ALL CARS HAVE A CAM!
EXCEPTION: Unless you have a rotory engine

and your wrong about the cam price and install!
a cam for our cars start out at 200 and cost 500 to install.....

First of all No all cars don't have mechanical cams Some Hondas have a two cam shafts but there are things called MVT or multiple valve timing. They have infinite different valve timings. Just explain how the hell would those guyz run with a camshaft. second of all In my local stores the comp cams are 600 cdn+tax. If you want to buy it online even if you go for the cheap stuff and not x-p cams they are $300+ shipping+ about $150 of other things u need to install the camshaft like the rocker arm bolts dampner....Take out your calculator and add it up. Now installation!! You might be right about $500 but think of when u don't pass aircare and have to put the old cam back.And finally quit trying to make me look wrong!

Just so u don't think that I pulled this out of my ass I add the link:
http://ip.research.sc.edu/catalog/00300.pdf
Now these guyz make this look like a new invention but it has been around for a while Lambourghini uses it BMW and Ford have made some prototypes and its widely used in aerospace. Just think about it if Grand prix had it that worthless PCM of urs could have made like 60hps.

VTEC (which stands for Variable Valve Timing and Lift Electronic Control) is an electronic and mechanical system in some Honda engines that allows the engine to effectively have multiple camshafts. As the engine moves into different rpm ranges, the engine's computer can activate alternate lobes on the camshaft and change the cam's timing. In this way, the engine gets the best features of low-speed and high-speed camshafts in the same engine.

http://auto.howstuffworks.com/question229.htm


Intense Racing Sells Cams...one of the Best in the business...If you did your research you would find Comp doesnt make Cams for our cars!

http://www.intense-racing.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=CAM-67x&Category_Code=HCV

And finally quit trying to make me look wrong!

I dont have to try hard....but if you would stop trying to prove me wrong I wouldnt have to make you look so bad!

and that link you posted is new...that is not in any current engine production designs!

Hehe wrong again
The VTEC you are talking about is a marketing name for what Honda does!! Variable timing electronic control is a general name for anycar without a fixed valve timing. Comp doesn't make cams for our car!!! here is the link!!!!:
http://www.3800performance.com/vehicles/grand_prix_97_03_miva.htm
And that link is new yes but the person who made it probably was as dumb as you are.
Well I'm giving you straight facts! Instead of wasting my time try to go back and get ur highschool degree maybe then u can spend rest of your life doin tune-ups. I hope u know what a spark plug is!!

Looks I was wrong about Comp Cams.....it happens

but all hondas have a cam...
THE ONLY CARS THAT DO NOT HAVE A CAM ARE ROTORY ENGINE CARS...

If I am wrong please tell me what cars/engines have no cam
Those are the only "facts" I will look at!

as long as you dont do my tune-ups I will be happy doing my own!

Here so you dont think these cars dont have a cam...all these are Honda VTec Engines...all have Cam (see DOHC or SOHC)

1996-Current Honda Civic EX coupe and sedan: 1.6L SOHC VTEC I4
1999-Current Honda Civic Si coupe: 1.6L DOHC VTEC I4
1996-Current Honda Civic HX: 1.6L SOHC VTEC-E I4
1998-Current Honda Accord LX/EX I4 coupe and sedan: 2.3L SOHC VTEC I4
1998-Current Honda Accord LX/EX V6 coupe and sedan: 3.0L SOHC VTEC V6
1997-Current Honda Prelude Base/Type-SH: 2.2L DOHC VTEC I4
1993-Current Acura Integra GS-R coupe and sedan: 1.8L DOHC VTEC I4
1999-Current Acura TL: 3.2L SOHC VTEC V6
2001-Current Acura CL: 3.2L SOHC VTEC V6
1991-Current Acura NSX: 3.2L DOHC VTEC V6

I never said anything about hondas not having cams. This is what I said: "Some cars don't have it and instead have a valve timing electronic control"
Lambourghini done it. 2003 VW jetta had a limited production of it. Lotus will have a mass production of their prototype by 2008, Ford did a prototype in 1991. Also the 530E diesel engine and I think ford had it in some of their 2003 medium duty trucks.

but you called it VTec!

I never said anything about hondas not having cams. This is what I said: "Some cars don't have it and instead have a valve timing electronic control"
Lambourghini done it. 2003 VW jetta had a limited production of it. Lotus will have a mass production of their prototype by 2008, Ford did a prototype in 1991. Also the 530E diesel engine and I think ford had it in some of their 2003 medium duty trucks.

Prototypes are just that Prototypes...we were talking about Production vehicles

Ford did not produce any 530E engines in any trucks...at least not that I have found, if you have the production numbers please post this
and if you could post the site you got the VW production numbers from as well...

Lamborghini did it in 1998 still a fairly new design...

All this is not even close to "some cars" none of these were ever produced in the mass production that we would even consider "some"

and again you called this VTEC and it is not VTEC

Well to me VTEC is the same as VVT. Honda use it for marketing purposes cauz it sounds cool. Their engine is really DVT(double valve timing). 530E was not a ford engine but I think it was tested on a ford truck. 2003 6.0 Ford Power Stroke had it.Check out the sturman website and this article:
http://articles.findarticles.com/p/articles/mi_m3012/is_5_180/ai_62685781
http://www.sturmanindustries.com/

That article was written in 2000...and they predicted it may be out by 2003...

But according to Ford they have not produce a truck with that engine

The new 6.0-liter Power Stroke V-8 engine is a direct injection, 32-valve diesel with an all-new cast-iron block and cylinder heads. The engine employs a single, block-mounted camshaft in a compact over-head valve (OHV) design, with hydraulic-valve lash adjustment. This proven configuration provides a low-friction and durable valvetrain system and is ideal for engines with a normal operating range of less than 4,000 rpm. This design provides maintenance-free longevity, quiet operation and optimized performance over the life of the engine.

You'r right but its Ford's fault for not doin what they promissed. Anyways in a few years all cars will have it and no more blowing up ur engine when using nos ;)