Now that I had to spend all my money on my new 700r4 trans, I want to start saving again for a new engine and think about it some more But I am stil confused on what I want and what will get me there.
goals:
-EMISSIONS LEGAL
-daily driver, 99.999% street use(track maybe once a year)
Heres how I usually drive my car;
1)I will race people up to about 60Mph from a dead stop, and I dont want anymore torque than I have now b/c of traction.
2)I also like to floor it after I straighten out after a turn to get up to speed quickly.
3)on the road when I am doing b/t 35-60mph and a car is along side of me, I would like to take him till about 90mph and di it very quickly.

Now with all that, what would I want to build?
My l98? Lt1? superram l98? any of these 3 supercharged? 383of any of these?

I want to know so that I dont spend anymore money on mods that won't get me here.

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1987 Iroc 350
GTS headlight/tail light covers
Camaro SS Wheels w/Sumitomo HTR ZII 275 rear, 255's in front
K&N filters
Adjustable Borla cat back
Large tube runners
ported plenum
Holley afpr
SLP 1 3/4" headders (not installed yet)
FUTURE GOAL:
To go really F'in fast!!!

Some pics of it at
http://photos.yahoo.com/john5911

 

John,

You stated that you don't want any more torque than you have now due to traction limitations. By your description of how you want the car to perform, and presuming it isn't doing that already, you'll need more applied torque. Since you also mentioned staying under 90 MPH in duels, and you are apparently already versed in transmission removal and installation, you might want to consider changing the torque converter to get the engine into the RPM range where it produces power. This is probably the best bang-for-buck modification you can do.



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Later,
Vader
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"Make Me Bad"
Adobe Acrobat Reader 4.0

 

For me to understand this better what rpms would my torque be at with my car right now, pretty much stock? The raeson I ask is because I coudn't take anyone in any of those situations I mentioned above. Everyone says that l98's have soo much low end power but I really havent felt it. Maybe thats because my trans was slipping for all four years I have owned the car till now because I got a new one. I havent really floored it yet to see if there is a difference with the new trans. What I am trying to get at is I want my car be fun to drive around town yet when a car pulls along side of me like a Camaro or mustang I want to take them from whatever speed we are doing. And like I said we rarely ever take it above 90mph but if I need to I will. In those situations is that where my low end power is?

Vader, I didn't do the trans my self I had it done at a Chevy dealer.

 

Here's a proven combo that will pass smog too:
Keep your stock L98 short block
AFR 190s milled for 10 to 1 CR
LPE 219 cam
Superram plenum/runners/base/TB
SLP 1 3/4 headers

The Vette guys have been known to run high 11s with this setup on a stock L98 block. Of course they have a slightly better exhaust, but mid to low 12s are possible on our cars with a good torque converter and drag radials. You won't need more than 3.42 gearing and you won't need to go past 6200 rpm. This is perfect for the STREET IMO especially with the criteria you are looking for.

You could use your LTR and ported plenum setup, but you will still be rpm limited. LS1s will still walk away from you on the freeway.

If you drag raced the car a lot at the track you'd want a Miniram and more aggressive cam and more gearing and torque converter stall. But you need midrange torque to pull away from LS1s from a roll on the street, and this setup works very well.

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1989 IROC-Z, ZZ3 shortblock with some bolt-ons.
13.20 @ 108.69, 2.2 60'

[This message has been edited by IROCZZ3 (edited October 18, 2000).]

 

So this set up would pull away. Lets say Im doing about 50mph and a Ls1 pulls along side of me can I take him? To what speed could I hold him in your opinion? Because I have always wanted to take ls1's in a sistuation like this, I have lost doing it a lot though with my setup now.

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1987 Iroc 350
GTS headlight/tail light covers
Camaro SS Wheels w/Sumitomo HTR ZII 275 rear, 255's in front
K&N filters
Adjustable Borla cat back
Large tube runners
ported plenum
Holley afpr
SLP 1 3/4" headders (not installed yet)
FUTURE GOAL:
To go really F'in fast!!!

Some pics of it at
http://albums.photopoint.com/j/Album...949&Auth=false

 

Speaking from personal experience, I have walked away from a couple of LS1s (stock I assume). One in particular, a Camaro SS. We first raced from a dead start. Through 1st and 2nd, we were even. I hit 3rd and started pulling away from him about 2 cars before slowing down for the next stoplight. I hit around 100 before I had to let off. If I had more room to run, the gap would've been more like 3 car lengths. We then raced from about a 40-45 roll...same results, I pulled away in 3rd gear.

This is with using a mild ZZ3 cam with AFRs and SR. With the 219 cam that's better matched with the SR, it'll give you a fat punch in the midrange and pull to 6000 easily. It should also make for a decent strip setup, though probably not as good as a Miniram combo with more gear and cam.

I just bought a 219 cam, but haven't installed it yet.

So IMO you can pull away from an LS1 from 50 and up with an AFR/SR/219 combo. How far up, not sure...the guy in the LS1 might have gave up already

Don't underestimate those LS1s though. They are AWESOME...it don't take much to get them to run real quick...put heads and cam on those and you'll be playing catch up again.

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1989 IROC-Z, ZZ3 shortblock with some bolt-ons.
13.20 @ 108.69, 2.2 60'