so the next question is is it required to tune the chip and who can do it right on this forum
L98 cam recommendation
Thread Starter
Racer
Joined: Oct 2006
Posts: 286
Likes: 0
From: Olympia Washington 91 Z07 Coupe, 6spd, Borla Exhaust, Perf. Ignition, K&N Filter
L98 cam recommendation
hey I was just wondering if anyone has installed a a cam in their l98, i saw a old thread about cam choice, but it didnt conain enough info. Also does the 91 l98 come with hydraulic roller lifters? and what is 1.6 roller rockers are the stock ones 1.6 non roller? helm me a out, give me a good run down of how it works
Racer
Joined: May 2006
Posts: 281
Likes: 0
From: Urbana OH
hey I was just wondering if anyone has installed a a cam in their l98, i saw a old thread about cam choice, but it didnt conain enough info. Also does the 91 l98 come with hydraulic roller lifters? and what is 1.6 roller rockers are the stock ones 1.6 non roller? helm me a out, give me a good run down of how it works
Semper Fi
Le Mans Master
Joined: May 2000
Posts: 7,033
Likes: 12
Question asked poorly and answered poorly.
Yes a 91 has stock roller lifters, non roller rockers. What part of that thread didn't contain enough info? The part where the guy much like you asked "what is the best cam" as a totally general question?
Stock rockers are 1.5-aftermarket are a choice of different rocker ratios.
Seriously the CorvetteForum is NOT the best source of engines v1.1, contrary to what most forum members would have you believe. Go to the library, talk to a mechanic friend or do google searches will yield some good information. My first suggestion is the mechanic friend.
Yes a 91 has stock roller lifters, non roller rockers. What part of that thread didn't contain enough info? The part where the guy much like you asked "what is the best cam" as a totally general question?
Stock rockers are 1.5-aftermarket are a choice of different rocker ratios.
Seriously the CorvetteForum is NOT the best source of engines v1.1, contrary to what most forum members would have you believe. Go to the library, talk to a mechanic friend or do google searches will yield some good information. My first suggestion is the mechanic friend.
Thread Starter
Racer
Joined: Oct 2006
Posts: 286
Likes: 0
From: Olympia Washington 91 Z07 Coupe, 6spd, Borla Exhaust, Perf. Ignition, K&N Filter
OKAY! Lets try this again.
I would like to know which cam has been tryed by people and resulted in a performance gain yet didnt effect the daily drivability of the car. i am looking for a bit more power, thats it. I dont want to have to change alot of other components so im guessing the cam cant be too bumpy.
Is this good enough of a question
PS vader i went to your website a second ago, im in the process of reading it.
I would like to know which cam has been tryed by people and resulted in a performance gain yet didnt effect the daily drivability of the car. i am looking for a bit more power, thats it. I dont want to have to change alot of other components so im guessing the cam cant be too bumpy.
Is this good enough of a question
PS vader i went to your website a second ago, im in the process of reading it.
Last edited by serge; Feb 27, 2007 at 12:41 AM.
Le Mans Master
Joined: Dec 2002
Posts: 5,270
Likes: 3
From: Seattle Area WA
Haha, the characters are in tonight.
Truthfully your question is a bit vague, but you probably don't know enough to understand the magnitude of vague it is. However, I'll give you a response, in solid english even!
Ok, so here is the deal.
For the L98 with 113s. Buy 1.6 full roller rockers and put in a LPE 219 cam or comparable.
A lot of people do this with the SuperRam intake. But it will work well with your stock TPI too, better if you port it though.
Truthfully your question is a bit vague, but you probably don't know enough to understand the magnitude of vague it is. However, I'll give you a response, in solid english even!
Ok, so here is the deal.
For the L98 with 113s. Buy 1.6 full roller rockers and put in a LPE 219 cam or comparable.
A lot of people do this with the SuperRam intake. But it will work well with your stock TPI too, better if you port it though.
Le Mans Master
Joined: Dec 2002
Posts: 5,270
Likes: 3
From: Seattle Area WA
A chip tune will be best, even better if you get it tuned on a dyno real time. Expect ~450$ for a dyno tune. Or you can go with tjwong for a long distance chip burn and some like skidwnit, Jesse, too. They are both cheaper, by tom wong (tjwong) my tuner will agree a dyno tune is optimal.
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Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
The ZZ-9 cam would be another good candidate for your L98.
You might consider having your #113 heads ported and worked with 2.00/1.56 SS valves and a good valve job.
The combo of heads & cam is worth around 30chp gain.
If you don't have FL headers they would net you some nice gains too. Here ture duals (2 1/2" is sufficient) would be the best way to go.
To top off the performance package, do some intake work too.
Since you have a 6-speed, I suggest you do the siamese intake base mod so you can use that top end the new cam will bring.
You might consider having your #113 heads ported and worked with 2.00/1.56 SS valves and a good valve job.
The combo of heads & cam is worth around 30chp gain.
If you don't have FL headers they would net you some nice gains too. Here ture duals (2 1/2" is sufficient) would be the best way to go.
To top off the performance package, do some intake work too.
Since you have a 6-speed, I suggest you do the siamese intake base mod so you can use that top end the new cam will bring.
Drifting
Joined: Feb 2003
Posts: 1,978
Likes: 2
From: San Antonio Texas
If you're keeping things pretty much stock, a smaller Cam will work best. Stay around 210* to 212* on the intake, and 8 to 10 more degrees on the exhaust lobe. Keep Lobe Seperation Angle at 112 to 114*and you should be ok.
TJ knows his stuff, and is in Vancouver I think. He could give you some good advice on your Cam choise.
TJ knows his stuff, and is in Vancouver I think. He could give you some good advice on your Cam choise.
Team Owner
Joined: Sep 2002
Posts: 22,209
Likes: 12
From: OBAMA IS HITLER
good advice, i would do this the other way around......do the academic reading first, then go to the mechanic friend and discuss.
Burning Brakes
Joined: Aug 2006
Posts: 1,061
Likes: 99
From: Seattle WA
Keep in mind that with the Accel 219, TPIS ZZ9, etc, you will have to change out your valve springs and retainers to ones that won't bind. Someone will correct me if I'm wrong, but the stockers will bind somewhere in the .470 to .480 lift, I believe.
Very informative info. Well worth the $16. I strongly recommend it.
Instructor
Joined: Nov 2004
Posts: 110
Likes: 0
From: Texas
cams
Call the tuners and several of the cam manufacturers and get a hold of some of the better books as mentioned. Vaders sight has a lot of good info also. You will have to grow some thick skin in your quest for info on this site also unfortunately.
