and as you get more seat time then you can mess with it. 
Help
Le Mans Master
Joined: Dec 2004
Posts: 5,789
Likes: 8
From: Myrtle Beach SC
St. Jude Donor '05-'06
1. Get the FSM
2. Learn to use the search function.
3. Save $1000 for regular maintenance items that will cost $$$.
4. Be satisfied with what you have you are far from experienced enough to handle what you have and do not need more power yet. Doing burnouts or even thinking about it at your age is a recipe for disaster or huge tickets + loss of license.
5. Stay in school and pay attention in English class. The FSM is a tough book to read (did I mention BUY ONE?).
2. Learn to use the search function.
3. Save $1000 for regular maintenance items that will cost $$$.
4. Be satisfied with what you have you are far from experienced enough to handle what you have and do not need more power yet. Doing burnouts or even thinking about it at your age is a recipe for disaster or huge tickets + loss of license.
5. Stay in school and pay attention in English class. The FSM is a tough book to read (did I mention BUY ONE?).
Le Mans Master
Joined: Mar 2001
Posts: 7,999
Likes: 14
From: Life is just one big track event. Everything before and after is prep and warm-up and cool-down laps
Cruise-In III Veteran
Cruise-In IV Veteran
St. Jude Donor '12
I'm sure you are excited and want her to run fast. Right now you are probably just over 160hp at the rear wheels.
Change all the fluids - Oil, trans, rear, brake, etc.
Change the plugs, cap, rotor, coil, ICM
Can't remember if the 90 had a frisbee or not (its a big circular disk attached to one of the pulleys, I forget which one my 88 is long gone) if so get rid of it.
Get a throttle body rebuild kit (its a bunch of gaskets), take off the throttle body and clean, clean, clean.
Read the FSM daily!
Change all the fluids - Oil, trans, rear, brake, etc.
Change the plugs, cap, rotor, coil, ICM
Can't remember if the 90 had a frisbee or not (its a big circular disk attached to one of the pulleys, I forget which one my 88 is long gone) if so get rid of it.
Get a throttle body rebuild kit (its a bunch of gaskets), take off the throttle body and clean, clean, clean.
Read the FSM daily!
Last edited by jaa1992; Apr 15, 2008 at 03:37 PM. Reason: Forgot he had a 90 for a minute
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by jaa1992
Change all the fluids - Oil, trans, rear, brake, etc.
Change the plugs, cap, rotor, coil, ICM
Change the plugs, cap, rotor, coil, ICM
RACE ON!!!
Team Owner
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
best advice right there. Driving it will also give you some time to think about which direction you want to go with mods, not to mention saving up some money to do it.
Melting Slicks
Joined: Jan 2001
Posts: 2,940
Likes: 5
From: Chesapeake VA
A bone stock L98 should easily be able to spin the tires from a dead start!
In stock form you should have around 200RWHP and over 300RWTQ
Where are you located?
It sounds like you need a tune up, not mods.
And....not to offend you...but, please do pay attention in english class. First impressions are important, and your command of language plays a large part in that.
Pro
Joined: Jan 2008
Posts: 584
Likes: 1
From: Near Lockport NY Black 1986 Coupe
Where'd you find those numbers? In a hypertech corvette manual?
L98s are lucky to get 140-160 at the wheels.. even with a couple of mods. Especially automatic..
But you're right about the tires, mine could definitely spin them from a standing start from day one. Maybe he does need a tune.
Melting Slicks
Joined: Jan 2001
Posts: 2,940
Likes: 5
From: Chesapeake VA
No sir, I got my numbers from the dyno I take my cars to.
I tried to get a baseline dyno, but a modded C1 (heavily modded) that ran before I did, damaged it, so I couldn't get my run.
Here is the dyno from my 86' after I put the TPIS long tube headers and Random Tech High flow cat on the car:
Here is the car on the same dyno after I installed the TPIS "Big Mouth" intake, "Big Tube" runners, ported the plenum and added an adjustable fuel pressure regulator (I think the "smoothing" setting was different on this run/print out):
As a reference, I also have a 99' corvette I bought new, I bought the 86' in 2004. At the same place, it's dyno looked like this (bone stock, 10K miles):
For both cars, allowing roughly 15% drivline loss for the 99' (it's a 6 speed), and 17% loss for the 86' (automatic) will get you back to numbers that look very much like the factory ratings (235HP, 330TQ for the 86' and 345HP, 350TQ for the 99').
My 86's number are similar or slightly lower than other cars on the dyno I use. What numbers have you been seeing at the dyno?
Pro
Joined: Jan 2008
Posts: 584
Likes: 1
From: Near Lockport NY Black 1986 Coupe
But as you stated, there were modifications to your '86 before the posted dynoes.If running an all stock L98,
you won't have enough intake OR exhaust to break 200.
The headers and cat are what gave you the power.
Nice to see a dyno chart of the nearly-stock powerband, though. It really does fizzle after 4,000 RPMs..
you won't have enough intake OR exhaust to break 200.
The headers and cat are what gave you the power.
Nice to see a dyno chart of the nearly-stock powerband, though. It really does fizzle after 4,000 RPMs..
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Thread Starter
Intermediate
Joined: Apr 2008
Posts: 48
Likes: 0
what would i have to do to give it a tune up my self???? and i live in Detroit.I also have the fsm for an 86 and an 87 but some stuff is different like it took years to find the aldl connector. but ime going to check the timing today.I changed the fluids except for the abs but i haven't started on the electrical.
Last edited by yourboy; Apr 16, 2008 at 02:43 PM.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by yourboy
what would i have to do to give it a tune up my self???? and i live in Detroit.I also have the fsm for an 86 and an 87 but some stuff is different like it took years to find the aldl connector. but ime going to check the timing today.
RACE ON!!!
Thread Starter
Intermediate
Joined: Apr 2008
Posts: 48
Likes: 0
Thread Starter
Intermediate
Joined: Apr 2008
Posts: 48
Likes: 0
well i guess no 1 likes my thread any more but ime taking your guys advice ime going to paint it then take the engine out and rebuild it it only has 75k on it but it needs it itll be good for it and maybee do some minor mod while ime at it. Any ideas?? But has any 1 got theres paint? if so how much? I was thinking i will try to get this paint off my self some how.
Please reply?
Please reply?
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by yourboy
well i guess no 1 likes my thread any more but ime taking your guys advice ime going to paint it then take the engine out and rebuild it it only has 75k on it but it needs it itll be good for it and maybee do some minor mod while ime at it.
Why rebuild an engine with only 75,000 miles on it? You say it needs it. What tells you that? Is it exhibiting problems?
Originally Posted by yourboy
But has any 1 got theres paint?
Quit day dreaming about the car and get into a remedial English class. Spend your spare time on home work. Any 15 year old ought to be able to construct and write simple sentences.
RACE ON!!!
Thread Starter
Intermediate
Joined: Apr 2008
Posts: 48
Likes: 0
It's leaking oil and I cant figure out where it's coming from. I thought it was coming out of the manifold but it wasnt, I sprayed the engine down and still could't see where it was coming from. Yea I wanted to know if any one has gotten theres painted.
Intermediate
Joined: Jul 2007
Posts: 34
Likes: 0
From: Houston TX
Stop worrying about the paint. It looks good in your picture and you are 15 years old, trust me you will have a chance to repaint the car after you wreck it.
Now about the oil leak, you need to put the car on some ramps and craw under it to find where it is coming from. Remember the key to finding oil leaks is to have the engine clean.
Now about the oil leak, you need to put the car on some ramps and craw under it to find where it is coming from. Remember the key to finding oil leaks is to have the engine clean.
8th Gear
Joined: Apr 2008
Posts: 8
Likes: 0
From: Lexington South Carolina
From the photo, you've got one helluva sweet first ride. IMHO, polish it, tune it, and fix the oil leak. You're going to need all available cash for tickets once you reach legal driving age.
Drifting
Joined: May 2002
Posts: 1,509
Likes: 3
From: Hazel Park MI
Yourboy, if worse comes to worse, there is a kit you can buy that contains a dye and a UV lightsource that shows the dye. Dye in the oil, start her up and watch for the fluorescent color, and you can trace back your leak.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by yourboy
It's leaking oil and I cant figure out where it's coming from. I thought it was coming out of the manifold but it wasnt, I sprayed the engine down and still could't see where it was coming from.
Originally Posted by yourboy
Yea I wanted to know if any one has gotten theres painted.
Remedial English!
RACE ON!!!
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Where'd you find those numbers? In a hypertech corvette manual?
L98s are lucky to get 140-160 at the wheels.. even with a couple of mods. Especially automatic..
But you're right about the tires, mine could definitely spin them from a standing start from day one. Maybe he does need a tune.
My basically stock 1990L98 dynoed at 223HP at the wheels.