Hi guys I have a 1990 Corvette L98 with 3.07 gears I'm just looking to hop it up a little and looking to put a cam in I was looking at comp cams 08-302-8 anyone run this cam?

 

Welcome to the Corvette Forum!

I will be watching as I would love "A bit more" from my 1988 C4 automatic Coupe. I have the same combination (but older) and have actually broken into the 30 mpg range on the highways but this is not "supposed" to be an economy car, I want\expect "tire-smoking-power" from my Corvette and 30 mpg.

The C4 is an awesome design and was a perfect starting point to build a Corvette of your dreams without breaking the bank. There are just so many things you can do to the Chassis and with the clam-shell hood it makes it so easy to access most of the engine.

I don't know how long you have owned your Corvette but a lot of people buy them and right away try to modify the system looking for more power. I would strongly suggest to anybody with a Corvette "new to them" take a few months and get to "know" the car. Once all systems are running 100% the whole package makes a wonderful Corvette to drive. There has been some discussion about the effect of older worn Oxygen sensors that can have a major effect on your Corvette's Performance. You get it all working together and the performance of your Corvette will really amaze most drivers!

After all is is a "Corvette"!

You should be able to get tons of responses about which Cam is the best for the L98. I am anxious to learn while watching this Post!

Best regards,
Chris

 

Great reply Chris, and you are right, let's check the basics are first, those are the foundations to make it run right.
and Chevyguy168, remember this is a system, i learned this HERE the hard way, with a new cam maybe you'll need new valve springs
and a converter to match, plan your goals ahead of time and then just cross check them and boom, you will have the car of your dreams, until you want more!

 

I will definitely have new valve springs and tuning won't be an issue

 

Tuning and valve springs are not related but yes you might need both, it all depends on your cam choice.

 

I went down the "justa little more power" slope many years ago. Just build a 383, 421, or a 434 and be done with it. I've tried more things to get the feeling of raw power, but a 421, 6 speed, and 4:10 gears is what satisfied my appetite.

But seriously, plan for the complete build program, because the cam chokes the intake (mini ram), and the exhaust (headers plus Corsa), better cylinder heads (arp),and a looser converter is needed and/or gears or....it's endless. That being said, the cam will change the behavior of the engine dramatically. A lot of people like the "GM Hot Cam" and it's quite mild. I have one in a 350, and its runs very nice.

 

Wise Words here, once the bug bites, there is no turning back, planning ahead your goal is KEY.

 

I have another car I'm building to become a drag c4 the one that's getting cammed right now is gonna run 12s and that's fine for me because when I wanna go faster I'll have the other car and yes I'm getting a looser converter

 

The thread is about the 1990 cam, what has to do the other car with it? What year is the other?

So if you plan to run the 1990 but only 12's ... both are Drag Racers then...one slower than the other ....im getting confused.
i would focus on just one and make it real fast, remember the saying "The man who chases two rabbits, catches neither"
BTW ....Now that you mentioned it ....what's the specs on the drag car you are building?, share some pics!!!
Any timeframes for both of your projects? Would love to follow!

 

I also wanted to make a "drag car out of a c4". Here's what I decided. A C4 Corvette is an inexpensive car to get started with. BUT, once you start thinking about making a drag car out of them is get VERY expensive, VERY quickly. The chassis is not well suited like cars with a full frame. Put in a cage, right? Remember, it has a removable top. Better put a 8 point in minimum. Well, then you need a solid differential, because if you dead hook with slicks your bound to start breaking differential parts. That's where is get very costly, very fast. While your at it, why not back half the car? More $$$$, unless your a fabricator. Also, the drivetrain with the torque arm will have to change with the new differential to a crossmember that is very rigid.

Point with that is, If you want a drag car, buy one already set-up. It will be much more practical to do so. If you can find a C4 that someone did all the work on - even better.

My C4 is at the brink of the maximum torque with the stock chassis, which in my opinion is about 500 Ft pounds with a D44 diff., and I run 12" C6 rims/tires but never slicks on a track. It has a 4 point chassis stiffener welded in but the car is still very streetable. Look at others who built a serious drag car, there are some here are on the forum who are VERY much more knowledgeable and more experienced than I.

 

amen !!!!!