Well i got my 255/50/R16 BFG Drag Radials this weekI wentto the track tonight, and I am very disapointed to say the least. My previous best on radials was 14.4@96 w/2.25 60ft, my new best is only a 14.1@96 w/1.945 60ft. I just couldn't get them to hook well enough to cut a good 60ft, It seems like I can hookup better on the street than I can on the track maybe it is because it was only in the low-mid 40's, so the track was pretty cold. I guess I just need more power. I just don't understand why I can't run 13.9 with a 383 stroker even thow I have the stock intake and heads, I mean I put down a ton more torque than stock L98's. Oh well.

 

Don't blame the tires

A 3 tenths reduction is nothing to gripe over.

Those stock manifolds are KILLING you. Just think.....a set of headers on a stock L98 is worth an easy 15-20HP and at least the same in torque. You have a 383......which expels more air than the 350......

I wager a beer that a set of headers will drop another 2-3 tenths of your ET.

Porting / cleaning up the stock intake is an easy tenth or two.

Then it's time to start burning your own PROMS.....


HTH

 

I'm not blaming the tires, I am just disappointed that I couldn't do better. I know the stock exhaust manifolds are killing me, I was thinking that I would be able to drop .5 off with hooker 1 3/4" LT headers and taking off the cats, but maybe thats asking too much. I just don't have the money to do anyhting right now, I had some money to play with but I have the chance to go on a fishing trip to Canada in June so I am going to do that intead of getting headers right now. Thanks for the reply

 

ever thought of suspension mods. they help a TON.

 

I was thinking about porting the stock TPI but I think I am just going to hold out for a Miniram. I want to learn how to burn my own prom but I haven't done any reasearch on that topic yet so I don't know how much that will cost me and how difficuilt it is.

 

BorlaZO6-yeah, I want to upgrade the suspension, like LCA relocators, LCA's, a torque arm, drag spring's, panhard bar,ect... but all of that costs more $$$ than I have right now.

 

If you get one suspension part for your car, get the LCA relocation brackets. World of difference in traction on lowered and non-lowered cars.

 

If your gonna do one thing to the suspension I suggest sub-frame connectors first.Engine no ? about this headers a must.
BD3

 

More torque=less traction. IMO I wouldn't worry about ETs yet...look at your trap speeds. 96 mph isn't much better than a stock L98 and I think your stock intake and heads are killing you! Even if you hooked up and cut a 1.8 60' your et's will come down some but you won't be going much faster and stock LS1s will still outrun you. Again, just my opinion but I'd wait on getting a Miniram and spend that on some GOOD heads. You didn't say what cam you're running but I'll assume it's stock. Just those 2 alone will wake things up. And of course tuning and prom burning is mandatory Good luck!

 

I was plannig on saving up to get some AFR heads, Miniram, and a cam at the same time, and I want the headers and and some sunspension stuff before that time.

Thanks for your thoughts guys.

 

BFG DRs will most definitely hook up. I've run easy 1.7's on them and have seen guys run 1.5's on them.

How are you heating them up and what pressure are you running them at?

I was ALWAYS able to hook with them. I run about 18psi in the tires and do a first to second gear burnout while smoking them really good in second. I wait until I have smoke pouring out of BOTH rear fenderwells and then I burnout for a few more seconds. Get them nice 'n hot. Treat them like a slick and you should be able to hook up.

Tim

 

the stock intake was designed for 305, at least the exhaust manifolds are larger for your setup (asumming it was originally a 350 car) and the dual cats are up-graded over the original 85 305. you need heads but the intake is the weakest link.
suspension isnt going to do a thing for that 96 mph trap speed. a street car that hauls a$$ from a 30 punch and keeps on pulling is going to put a bigger smile on you face that the occational trip to the strip where the 60 ft really matters. there is a lot of 13 and high 12 second cars that go 1.9 sixty ft times , not to many in that range that mph @ 96.
why the 383 without a good cam or a little head work why it was out? what piston and compression ratio?

 

A friend of mine has a Miniram on a stock L98. The Miniram makes alot of difference on the top end. A stock TPI system isn't enough air for a 305. Much less a 383.

 

Well i was running 18psi and I didn't heat them up a lot because I would like to get at least 2000miles out of them soI am afraid of really letting them burn. Next time I'm just going to let them rip.

The reason I have the built bottom end and no topend is because I wasn't planing on doing an engine build up any time soon and then the engine blew with about 50,000 miles so I didn't have the money to do the whole thing so I built myself a solid base that I can build on top of when I have the funds. I am running about 9.5:1 compression and I have a small cam (210, 220). I am still undecided on which rout I am going to take, I am either going to go high compression with a wild cam or low compression with 12-15psi from a Procharger. I don't know but boost is sounding pretty nice right now.

 

I wouldn't be too upset about your current performance. As you are well aware right now, your engine is majorly choked up. Some proper tuning may help a little, but mostly you need to open er up, breathing that is. If I were you, I would stay with the compression ratio you have and save for the Procharger. I am. I am also converting to the Holley Stealth Ram this summer. A little more economical than the Miniram. I don't have any time slips yet because I haven't made the trip yet. I do know that I am running pretty quick. I bet a few Cobras and Vettes, not Z06s though. And like you I have NO traction. I agree with what a few said about doing some suspension work first. Do the LCAs and relocation kit and SFC. Together they all make a world of difference.

 

92 zzz28- it looks like you have a really nice setup right now according to your sig. I bet that thing sounds awesome with the LT headers and 4" mufflex exaust. Are you still planning on building a 406-420ci motor to go with that procharger? If i ever blow my motor I am going to build a 406 or a bigger motor, I think it would be great to have a blown 427 in a thirdgen. I would go with a stealthram over a miniram if I didn't have to cut my hood but since I have a GTA i would have to so I am going to go with the miniram.

 

Yeah my car sounds pretty good. My dad says he thinks it sounds like an offshore racing boat at idle. I take that as a compliment. The 406+ engine is mostly just me dreaming. One day I would like to go that road, but not until I have saved enough money and have a few things first. Also, I won't even consider doing a huge small block with a factory 400 block. Aftermarket block all the way for me.

For now I am going to be rebuilding my motor this summer to get it ready for a blower by winter I hope. Then I am going to try to get a 6spd. In the mean time I hope my rearend hangs on until I can save for an aftermarket rear.

Oh well, thats the price of having one of the most expensive hobbies there is!!!

 

Yeah, this is the one of the most expensive hobbies, but it is well worth it.

A 6 speed would be awesome. I would like to convert my car to a 6 speed someday.

Good luck with your project. It must be nice to live in FL and have your car out year round. I live in WI and my car is only on the road 6months out of the year if I'm lucky.

 

I am actually orginally from Wisconsin. Still have family and friends there.

Also a nice thing about down here is NO emissions, for my area at least.

Same to you guy, Good luck...

 

Having no emissions is great. I have emissions where I live, but my car is registered at my cottage in central WI so I don't have to pass emissions.