Have you got an L98 TPI you want more power out of ??? (Page 4/12)
crzyone DEC 11, 04:03 AM
So to get 410 crank hp they had a 383 with a high 10-1 compression ratio, huge cam, long tube headers, trick flow heads and other high performance parts.

What exactly does this engine share with California Kid? Other than the style of intake, nothing.

Long tube headers is a major factor in making hp, not really possible in a fiero without alot of innovation. As Indy said, accessories also make a big difference.

DOHC_SWAPPER DEC 11, 09:52 AM
No I stand by my previous comment. I built my car for 16,000 cdn give or take....not counting a previous engine swap cause thats not the car now. But its true. I can PM you a list of what everything cost me. And yes I do do my own work.

I read your history thread Cali.
How did you get a 1.17 lateral G on a skid pad with stock fiero suspension and aftermarket shocks and poly bushings?!

Ok im not attacking you or anything... Just really curious. Cause if you can hit a 1.17 with basically a rebuilt stock suspension, hell i should hit 1.50G's in my car! Sweet!

California Kid DEC 11, 09:58 AM

quote
Originally posted by California Kid:

Here's a link with some recent tests conducted on an L98 383 using various combinations of TPI setups. The end of page 1 and onto page 2 shows HP and Torque off Dyno runs conducted. While this engine was bored out a little, used Trick Flow heads, hotter than stock cam, it is a road map to getting more out of your L98. I'm not going to go into everything done to mine, just sharing this info:

http://www.thirdgen.org/ techbb2/showthread.php?s=582ae6c9ac418df10bc041aa8f3216c1&threadid=273727&perpage=75&highlight=Super+Rod+Magazine&pagenumber=1

The cube difference between the 383 and 350 using an optimum ballpark of 1 HP per cubic inch, would result in a 33 HP difference.


Looks like I should re-post this a little lower in the thread, since some people can't read very well, and make a lot of incorrect Assumptions. I made this post to assist anyone here with a L98, or is considering a L98, because it's a very good, affordable alternative when considering a V8 swap.

Crazyone, I know you've got a hardon for me, but posting things that aren't true is really showing everyone else what a jackass you are:

Your comments " What exactly does this engine share with California Kid? Other than the style of intake, nothing. " Is incorrect. My engine is a 91 Corvette, which came with 10:1 compression, and no I haven't lost any of it. I run a TPIS L98 Super Profile Cam with 1.6:1 roller rockers, modified heads, and other performance parts. The thread is about ways to improve the L98 with modifications over factory stock parts. As far as long tube headers, you can't run them in a Fiero anyway, so it's rather a mute point, I think most people with some common sense understand this.

As I stated in my first post, this thread isn't about me, or my engine, just passing on some test information for those that might find it useful. If you've got something positive to assist someone doing an L98 buildup, then post it here, or get the hell out of the thread. Same goes to a couple others that jumped into the thread trying to divert attention. I've seen what's been posted on RFT, which is a joke in itself, like a bunch of little kids with no hard facts, jumping on someone.

[This message has been edited by California Kid (edited 12-11-2005).]

California Kid DEC 11, 10:29 AM

quote
Originally posted by DOHC_SWAPPER:

No I stand by my previous comment. I built my car for 16,000 cdn give or take....not counting a previous engine swap cause thats not the car now. But its true. I can PM you a list of what everything cost me. And yes I do do my own work.

I read your history thread Cali.
How did you get a 1.17 lateral G on a skid pad with stock fiero suspension and aftermarket shocks and poly bushings?!

Ok im not attacking you or anything... Just really curious. Cause if you can hit a 1.17 with basically a rebuilt stock suspension, hell i should hit 1.50G's in my car! Sweet!



The car is not stock regarding the suspension system, the 88 Cradle has be heavily modified, and honestly I don't know if the front suspension parts have been modified a little by the previous owner (they would have to be compared directly with stock parts to determine that (haven't needed to replace anything). As I've posted before, it was run under ideal conditions at GM's Milford Proving Grounds, with adjustments made by their people to attain that best run number over multiple runs. Every car has to be dialed in with parts/adjustments, just because it works on mine, doesn't mean it will produce the same effect on yours.
DOHC_SWAPPER DEC 11, 10:44 AM

quote
Originally posted by California Kid:

The car is not stock regarding the suspension system, the 88 Cradle has be heavily modified, and honestly I don't know if the front suspension parts have been modified a little by the previous owner (they would have to be compared directly with stock parts to determine that (haven't needed to replace anything). As I've posted before, it was run under ideal conditions at GM's Milford Proving Grounds, with adjustments made by their people to attain that best run number over multiple runs. Every car has to be dialed in with parts/adjustments, just because it works on mine, doesn't mean it will produce the same effect on yours.



okay thanks for the info. I agree with you about "what works for me wont necissarily work for you" but again...we both have the same car.
How was your cradle modified to improve your handling? Its hardmounted obviously (cause it was an 88). there is little or no rear bumpsteer (again cause its a 88) so what was done to the cradle to take it further? I cant really see a alignment taking you from a stock fiero G load to 1.17...unless GM MPG gave your car some serious camber (? top of the wheel angled in)

I have a solid mounted cradle / rear coil overs / rear poly A arms / rear sway bar / front tubular suspension / front coil overs / and agressive alignment cause I autocross...

Do you think I could do better than 1.17G on a skid pad?

[This message has been edited by DOHC_SWAPPER (edited 12-11-2005).]

FastIndyFiero DEC 11, 11:00 AM

quote
Originally posted by California Kid:

As I stated in my first post, this thread isn't about me, or my engine, just passing on some test information for those that might find it useful. If you've got something positive to assist someone doing an L98 buildup, then post it here, or get the hell out of the thread. Same goes to a couple others that jumped into the thread trying to divert attention. I've seen what's been posted on RFT, which is a joke in itself, like a bunch of little kids with no hard facts, jumping on someone.


Excuse me. Is there something WRONG with saying it would be interesting to get the same motor on a chassis dyno?

Nate

California Kid DEC 11, 11:04 AM

quote
Originally posted by DOHC_SWAPPER:

but again...we both have the same car.

Do you think I could do better than 1.17G on a skid pad?



No we don't have the same car, far from it. Best way to find out what your car will pull is to have it tested.

I could be wrong, but it appears we have another thread hi-jack in progress.

DOHC_SWAPPER DEC 11, 11:07 AM

quote
Originally posted by California Kid:

No we don't have the same car, far from it. Best way to find out what your car will pull is to have it tested.

I could be wrong, but it appears we have another thread hi-jack in progress.


Sorry if im hi-jacking here but i really want to know... Ofcourse we have the same "platform"...so same car. Thats why im very interested in your suspension set up. Only difference is your a 5spd V8 and im a 4spd V6 turbo.
Formula88 DEC 11, 11:54 AM
DOHC_SWAPPER, you should know by now that slapping a shopping cart full of parts on a car doesn't automatically give perfect results. If that were the case, all NASCAR Cup and Busch Series cars would always finish the race at the same time.

You listed a lot of parts for your suspension, but you didn't list...
spring rates you're using
ride height (lower is not automatically better)
what dampers you're using and how they're adjusted
what's your corner to corner weight distribution?
what swaybars are you using?
What does you tubular front suspension change? It could hurt handling, if not set up properly
what wheels and tires are you running?
what air pressures are you running?
what are your alignment specs?

Also, a car set up for AutoX may not generate higher lateral g than one setup specifically for skidpad testing. Transient response and turn in is much more important in AutoX.

Even if 2 people have exactly the same shopping list, the car's will not perform identically. It's all in how you set the vehicle up. Anyone who's ever built a car that involved more than slapping in a cam and headers should know this.

As for engine mods - porting is everything. That's why many race teams conceal their intake manifolds, so you can't tell what they're doing. And that's just the parts you can see. Most heads can be ported to flow much better than stock. And again, that gets back to the setup. You want to port them to flow best in their intended usage. Awesome .700" lift flow numbers mean nothing if you're running a .525" lift cam.

DOHC_SWAPPER DEC 11, 12:10 PM

quote
Originally posted by Formula88:

DOHC_SWAPPER, you should know by now that slapping a shopping cart full of parts on a car doesn't automatically give perfect results. If that were the case, all NASCAR Cup and Busch Series cars would always finish the race at the same time.

You listed a lot of parts for your suspension, but you didn't list...
spring rates you're using
ride height (lower is not automatically better)
what dampers you're using and how they're adjusted
what's your corner to corner weight distribution?
what swaybars are you using?
What does you tubular front suspension change? It could hurt handling, if not set up properly
what wheels and tires are you running?
what air pressures are you running?
what are your alignment specs?

Also, a car set up for AutoX may not generate higher lateral g than one setup specifically for skidpad testing. Transient response and turn in is much more important in AutoX.

Even if 2 people have exactly the same shopping list, the car's will not perform identically. It's all in how you set the vehicle up. Anyone who's ever built a car that involved more than slapping in a cam and headers should know this.


Okay fair enough. But...if Calikid can say very little about his suspension and claim 1.17Gs.... Why not say that a superior suspension (part wise) can do better?