86firebird350

Might as well fix the whole thing.

midias

^ Man I feel like a fast and furious demotivational poster needs to be posted here.

danziger

LS1s are ALL around 340-350HP despite what the advertisers at GM would have you believe. If you think a base LS1 Z28 only has 305HP, I have a bridge to sell you...

Thirdgen89GTA

iTrader: (5)

Then its still (235 + 150) > 350.

Its not enough that a driver couldn't lose the race, but all drivers being equal a thirdgen with a 150shot should win over a LS1 F-body thats stock.

86White_T/A305

should be close..just race and let us know how it goes lol.

Guest

Bad news guys, turns out the fool sold the T/A a week ago and then says hes best time was a 13.32 @ 106.....man....ill be at the track by the end of this month if all goes well....wish me luck. ; )

Guest

sorry about that, public computer was on the fritz.

86White_T/A305

Aww crap..got us all worked up and no end result to settle the score lol.

Guest

Im still going to the track but after I fix this problem.

At WOT in 3rd around 3800 ish the revs kinda hang or slow down and about 2 ish seconds later itll go past 4K -then- itll rev fine.

I have changed plugs and wires not all at the same time thought but the front 4 then a weeks later then back 4 but this was all alil while back.
Im going to get an MSD replacement coil soon and hope that fixes it, but I may try a new cap as well. (all this stuff still looks new btw)

I think thats it for now.

Thirdgen89GTA

iTrader: (5)

If the car still accelerates and this occurs about 75-80mph then it's your torque converter locking up. Perfectly normal.

See this video. http://www.youtube.com/watch?v=9sNRK...e_gdata_player

Guest

so it locks up just before 4k in 3rd gear only and while doing a gear to gear run?????

Thirdgen89GTA

iTrader: (5)

No. TCC lockup occurs between 75-80mph no matter what the throttle load. It can be changed in the PCM but most don't bother it doesn't hurt anything.

Guest

hmmm....if you so....and why does it lock up at that speed?

Thirdgen89GTA

iTrader: (5)

Because GM programmed it to. More detailed answers can be found in the DIY Prom board. Unlocked TC's generate heat, heat that the stock trans and cooler can't deal with on a continual basis.

Guest

ok thanks man.

danziger

I agreed that if the 3rdGen is sorted out, it would beat the LS1. However, there still seems to be some folks that could use some friendly advice on what LS1 cars can do.

Thirdgen89GTA

iTrader: (5)

They call the LT1 a generation 2 small block. But honestly I think its more like Gen 1.5. It has improved head flow, an intake better suited to a 350ci motor, the PCM is more advanced as well. But ultimately the rotating assembly and head design is just about identical.

The LS1 was the first of a truly new generation of small blocks. A clean sheet design and it shows.
If I didn't already have the LT1 in my car I'd swap a 5.3L in a heartbeat.

danziger

I'd only do the 5.3 if it were a newer aluminum block (and I'd disable the cylinder deactivation). Otherwise, I'd go 5.7 LS1 or even 6.0 iron-block.

(sigh) If/when my L98 craps out, it will be serious decision-making time...

Thirdgen89GTA

iTrader: (5)

A 5.3L doesn't give up much in terms of power over a LS1. In fact, the later ones make as much power as a LS1 did, or more in some cases. Plenty of 5.3L are putting down darn near 290rwhp with just a tune. One of the guys at work has a 5.3L in his truck with a dyno tune and its making 284rwhp. Stock everything with the exception of the tune.

Yes, I would stay with aluminum if I could help it. The weight loss would be great for handling. Its one of the reasons I didn't go 5.3L was because I wanted it to be an aluminum block when I did. The prices will only come down later. Swaps will get cheaper and I can make the power I want out of my LT1.

danziger

The 5.3 is a great engine, don't get me wrong. I have two of them; one iron and one aluminum. If you can get one suitably inexpensive enough, it wouldn't be a bad route to go with.

LS1s are still reasonably common/inexpensive though, especially if you aren't in a hurry. I like the extra cubes, all aluminum, usually come with the right intake and accessory-drive and perform well as a stroker 382. They should dyno around 280ish+ rwhp out of the box, which can scoot a 32-3400lb 3rdGen into the 12s with no other changes.

Anyways, either option is great and will be a tough choice when the time comes. Heck, I might just build the L98 to make things interesting...

Guest

I pushed my track date back another week, to keep an eye on some odd things that the motor does occasionally (not spray related....havent juiced in like a month. Plus i started saving for my 5.3 swap.

---I also picked up a second nos bottle 2 it needsbottle nut and washer though....