Alcee1

With the parts you have listed, minus the ported intake and add an X-Ram with bored TB's, with injectors and some tuning you should achieve 300HP with no problem, 350HP might be a stretch.

Lionsden

:lol:
Some of you have followed my L98 Crossfire topics. For those that haven't (the short version) I installed a ported crossfire intake with 2" throttle bodies on a stock '90 L98. Altitude corrected to MSL the car ran 13.90s @ 98 mph.

From other L98 TPI topics my ET/MPH seems to fall in the middle of what the stock TPIs are running. On a side note, the et instantly lowered .14 by shifting out of second at 5500 rpm instead of 4800 rpm. (now to fix the 4800rpm forced shift out of 1st.)

Jim
The Crossfires are definitely for the DIYers. As far as expense, doing the work in my little home shop I have less than $20 in materials to modify the intake, lid spacer and 2" throttle bodies. A good return on my investment.

:jester Seven years of L98 TPI technology advances/improvements and the engine is up to a whooping 40 hp increase. Of course anyone wanting serious HP isn't going to be running TPI either. :blueangel:

300 hp is do-able.

oldace84

Have you checked out the CrossFire forum? http://www.crossfire.webhop.net

Should answer some questions you have, after you register.
Good Luck.
tony

Nathan Plemons

You might want to be careful with that high volume oil pump if you're using a stock capacity oil pan.

A lot of people have run high RPM's for a little while and pumped all their oil up into their valvecovers and starved the bottom end. Happened to a friend of mine at the silver state classic thing. He lasted all of 8 minutes.

Dave C. '04 Z06

I think Chrysler has a Crossfire with 215HP.

:crazy:
:p:

bogus

:yesnod:

It's a 3.2 litre Mercedes-Benz V6... can you say "AMG Supercharger"? mmmmm.... that would be fast...

vettespd20

OK OK.... FOR GET ABOUT THE CHRYSLER AND Mercedes-Benz, and lets talk about Corvettes. Ok now, about how much HP will I have if I use the parts listed above and if I get the Throttle bodies ports a little, any one have an idea??????

tobijohn

vettespd20 wrote:
"Ok now, about how much HP will I have if I use the parts listed above and if I get the Throttle bodies ports a little, any one have an idea??????"

Yeah, and don't forget about the long tube headers, catback, X-Ram and maybe a stroker kit! :D

Alcee1

Just with the upgrades you are talking about I would say about 270-280, considering the 84 is stock 205HP. If you were to make a few changes with a couple of your mods you would be 300+ easy. But I'm no expert.... :auto:

TPI383

So what are these FEW changes you talk about Alcee1

I know a cfi wont flow THAT great Even Ported. but he is on alimited budget and needs to keep CFI now or go carb and he dont want to go carb.

TPI is planed for down the road but not for awhile....

Alcee1

Well, If he is on a limited budget then I guess he has to get whatever HP those mods will give. Anyway I was talking about the X-Ram, different heads, injector work and so on. Maybe he could start with what he has and then add more when money comes in. Everybody knows that unless you just have a bunch of money put aside then it could be a slow process to get what you want.


[Modified by Alcee1, 4:21 PM 8/30/2003]




[Modified by Alcee1, 4:22 PM 8/30/2003]

offershore

[IMG]Seven years of L98 TPI technology advances/improvements and the engine is up to a whooping 40 hp increase. Of course anyone wanting serious HP isn't going to be running TPI either.
[/IMG] :iagree:

Dominic Sorresso

And I think Dan Plett has convincingly demonstrated that the Xfire induction system isn't necessarily the "bottleneck" to power that everyone assumes it is.
To your point offershore, today why use LT-1 power and not LS-1/LS-6. In a few months it'll be LS-2/LS-7 technology. Several years ago, you never heard of a Xfire running in the mid 13's. Today, there are several capable of doing it. The guys over at the Crossfire Forum deserve a good bit of credit for getting the word out and providing a place where people interested in building the Crossfire coud swap ideas and tips without being told it was a waste of time. Its been a great DIY project. If you like to tinker and tweak and enjoy the satisfaction of having done it on your own, then do it with the Xfire. :cheers:

CFI-EFI

Dan,
I agree. I bought a $10.00 die grinder, $40.00-$50.00 worth of of cutters, and about $10.00 for drill bit extensions. Another $10.00 worth of expoxy to fill the holes where I ground through, and I burned up an air compressor, were MY expenses to port the manifold. I traded parts for the TB boring. By the way, after a few runs with the stock TBs on the ported manifold, I installed the bored (2") TBs. Initially, they gave no reduction in my ETs. I DO believe the are contributing to the cause, at this point. I am shifting at 6000 rpms. I probably have about $1000.00 in all of my modifications, including the Vigilanti torque converter. Good luck, and...

RACE ON!!!


[Modified by CFI-EFI, 7:48 PM 8/30/2003]

vettespd20

Well, ok IF I get it rebuilt with the parts listed at the top, with the throttle bodies port (just a small amount) the intake ported, with headers, and ported L98 heads about how much HP will I have??????? Any guess please let me know

CFI-EFI

Flywheel horsepower? Or rear wheel horsepower? One guy I asked said about 175. Another said 450. Why don't you just tell US when it's done? Anybody else's guess, is just that, a guess.

RACE ON!!!

vettespd20

I understand its hard to put a number on it, but come on if someone knows a lot about engines they should be able to put a range. Thats why I said ABOUT how much HP will it have not TELL ME HOW MUCH HP I WILL HAVE. So any one have a GUESS???

CFI-EFI

You have had a couple of dozen replys to this thread (we're on page 2), plus a few others. There have been numerous "guesses". You could make this a lot easier if you'd tell us what you want to hear. What ever it is, I'll "second" it.

RACE ON!!!

LD85

I have an article on a 1984 vette where the guy did mods and got excellent results, like 12.xx's

I can fax it to you or email it after I find the article if you email me.

vettespd20

Ok CFI... No one has really came out and said about how much HP just by what i have on the original topic. I have had lots of suggestions and ideas (which I thank everyone for) I just want to make the right decision, and time is getting close for the deal. I only plan on doing this to my vette once and I want to make sure its what I want. So u saying just go do it and let us know how much HP i get from it IS NOT WHAT I WANT TO DO. I am just asking poeple who have been in my shoes I am not trying to be a nag or a pain to any one i am just kinda nervous about the deal and i want to do it right. So if u feel that i am a pain and dont like my questions DONT respond with the comments besides that I am open for any suggestions. Oh ya I am not trying to be a jerk, HEY give me a break I am only 21 lol. thanks