Time to mod.

[CutlassH.O]

My grandma is giving me $1250 (Cnd) for graduation. And its all going towards the motor. What i need to know is...Whats the cheapest way to make the H.O faster for the amount of money I got? Am getting a AEM V2 CAI for my birthday, which is This friday:banana: ...I was thinking full exhausr system and pulleys??
If any of you have had good combinations or ideas let know :)

[AmIGrand]

Cams, ECU, and a 2.5" exhaust. Alternatively, Some P&P and valve work.

[speedvisioncavalier]

a nitrous kit is always really helpful.

[gOoIe B]

i don't know what all $1250 cdn will get you, but personally I think the best starting points for unleashing the beast within your engine are
1) good, true cold air intake. the less bends, the better.

2) good, full length 2.5" exhaust. for the best results, first, remove your exhaust manifold, and port out the collector pipe literally as far out as you can (it will be close to 2.5" but its practically impossible to make it 2.5" inside diameter). then, cut out your downpipe, or cut one out from a junkyard car. MAKE SURE the car you get the downpipe from has the same exhaust manifold as your car! now, cut the downpipe off of the flange, so you just have the flange part that bolts up to the exhaust manifold. port THAT opening to just barely over 2.5". try to be relatively precise, because you want the new downpipe to basically fit snugly inside the flange and welded together. if you try to weld the end of the downpipe flush against the end of the flange, it will be much more prone to crack and you'll have to re-do the downpipe. OK, once the manifold and downpipe flange are ported out, head up to the exhaust shop and tell 'em what you want. sketches help. as far as mufflers, tips, resonators, cats, etc. go, its really all about personal preference. if the exhaust shop doesn't ahve the stuff you want, you should be able to find it in summit. they're shipping dept. is great. all of your components should have 2.5" inlets/outlets.

3) w41 ECM. even without w41 cams, the w41 ECM will make more power AND increase your redline. just make sure you get one that will be compatible with your car. that is the only trick. to get a general idea of what will work with your car, go to www.mantapart.com and go to their mantapower chips section. they have a table that lists what chip codes will work with what cars and years.

4) w41 cams. not only do they make more power above 6k rpm than H.O. cams, but coupled with that big 2.5" exhaust system, they. sound. MEAN. my car's idle seriously resembled that of an old-school pushrod v8, it was fuggin awesome. and talk about screaming up to the 7400rpm the w41 ecm will allow you, it hollers like no other 4-cylinder i've heard.

5) cylinder head port/polish and 3-angle valve grind. think about the path that air takes through your engine. by now, you've opened up the intake for improved airflow, the valves stay open longer for improved airflow, and the exhaust is opened up for improved airflow. the chokepoint is the cylinder head. a gasket-matched port/polish on the exhaust ports, a polish on the intake ports, and a 3-angle valve grind will significantly improve air flow throughout the cylinder head. NOT ONLY will you see gains from a better flowing cylinder head, but since the cylinder head was originally the choke point, you will also see additional gains from all the previous mods.

i'll let some other people expand on this. you can change up the order in which these are installed but that is the order i would install them. i could go on and on and on with this list...

[CutlassH.O]

Originally posted by AmIGrand
Cams, ECU, and a 2.5" exhaust. Alternatively, Some P&P and valve work.

Am a newb your gonna have to explain a bit more :confused:
I thought the cams in the H.O were the best for the 2.3?
and what the hell is a ecu? and how much would a port and polish job cost?? along with the cams:confused: thanks for the help

[CutlassH.O]

uhh sorry, lol didnt see what g0oie wrote thansk :D

[colinepp]

i haven't checked but are the exhaust manifolds for the 90 quad the same as the 88 or 89? Cause ive been meaning to put some major cash ( about 2500 - 3000 cnd ) towards my engine just to beat my friends Malabu Classic. And cause i want this car to be a total bad ass in the end.

[doughboy1013]

Nope the 88-89 had the tubular exhaust manifold... looks cool, flows less than the '90. That and you'd have to change the downpipe. Not worth it.

[stang&2Birds]

Does anyone make a CAI for the Quad 4?

Also, forget about pulleys on a Quad 4. IMHO, they are worse than a waste. IMHO, they *cost* power. See what I wrote on bnet:
I don't know if the following link will work:
http://www.beretta.net/board/ib3/ikonboard.cgi?;act=ST;f=9;t=1243

So, also
http://www.beretta.net/board/ib3/ikonboard.cgi
->> Performance Mods
->> Performance pulleys for sohc quad



I doubt that you'll get the W41 cams and install them for the cost that you're looking at.

BTW: My "dual" exhaust cost me ~$1K (U.S.) with the new cat for my '04 DOHC.

BTW#2: I'm an EE/CS (MS), taught EE/CS for 8 semesters, and have done a bunch of embedded control for motors, "alternators/generators", power supplies, etc.

[doughboy1013]

I know Stencil over on the Bstuff/net boards has his own site with CAI's for the 92+ Q4 L body. Not sure about the compatibility...

http://www.tranzgenic.com/www/products.php

It resides the front bumper going through a hole in the body behind the headlight. I've never seen under the hood on a 92+ N body, so I dunno if the placement is the same. It's a start though, I guess. Pics in this link give you the idea, though it is for the V6.

Clicky. (http://www.beretta.net/board/ib3/ikonboard.cgi?;act=ST;f=5;t=145)

[CutlassH.O]

Go0ie is their a link for the exhaust project you explained to me?
like a step by step process :S Bcuase you lost me

[90BerettaGTZ]

http://www.ny-jbodies.org/forum/library/2.3/exhaust.htm

[AmIGrand]

I sold my W41 ECU for $75, the guy that bought it off me might part with it for about the same. I have a set of reground W41 spec cams for $225 shipped. All funds in US dollars. Those two pieces would gove him another 10 or more HP on the stock setup, and leave 500 or so Canadian for teh exhaust....

[stang&2Birds]

Originally posted by AmIGrand
I sold my W41 ECU for $75, the guy that bought it off me might part with it for about the same. I have a set of reground W41 spec cams for $225 shipped. All funds in US dollars. Those two pieces would gove him another 10 or more HP on the stock setup, and leave 500 or so Canadian for teh exhaust....

I have a couple of questions:
How do you regrind to a W41 spec cam?

Also, if I remember correctly, the W41 PCM won't work with the 93+ ignition module. Is that right? (I have a 94 Olds DOHC.)

[AmIGrand]

'93 had a W41, and his car is a '90 anyway.

You can modify the base curve of a regular HO cam to add a little duration and a bit of lift.

[xsvspd]

You said the tubular exhaust flows less' i have an '89 ga le. i have access to lots of parts. does the tubular intake flow better? What exhaust manifold is best? What are secret cams? I checked pontiac and they want $725 for pair of ho cams. Do the vin 3 code motors have bigger cams and will the ecm from one make mine run better. All this for a 91 ga le w/d motor...tnx

[darkfox]

why do people confoozle secret cams with the 2.3? Secret cams are for the 2.4!!!! if you have a 2.3 they are useless, considering you probably already have them in your motor!!!! :eek: 2.3 guys want ho cams or w41 cams. Or the cranecam grind. 2.4 guys want the secret cam swap.

there. confoozzion settled.

[AmIGrand]

The answers to all your questions are easily found with a search, or a quick look at the FAQ.

The'90 to '92 HO exhaust manifold flows best.

Secret cams are for the 2.4 guys, for the 2.3 the stock HO cams are good, W41 spec cams are better.

Vin D is what you want.

[jeffe_de_walla]

I have heard of this mod (very simple) it's a resister, and you plug it in to your IAT (Intake air temp. sensor) 3.3kohm has anyone else heard of this mod and does it work will it work for my 93?

[AmIGrand]

It's BS.

[speedvisioncavalier]

that resistor mod, technically works, but it doesnt add hp. the mod tricks the ECM into thinking its colder outside than it really is, with the idea that the ECM will use its maps for the colder air temps. those maps add more fuel that normal.


who says your car needs more fuel? like the ECM is too stupid to understand what an intake or exhaust does? the ECM can handle most bolt on mods fine without any tricking needed.

[gOoIe B]

shit, with this bilmar chip in, i'll NEVER need more fuel :eek: !!!

[darkfox]

LOL @ gooie.