LT1-LT4 Modifications 1993-97 Gen II Small Block V8

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Old Sep 1, 2006 | 09:13 AM
  #21  
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Originally Posted by LT1MAN
thats a bit much for your mods, but you definately shouldn't have any problems with your friend with the ls1. i bet with those injectors you
I'd say he should be at 400 no problem cuz that 23x cam isn't a baby cam. And his heads flowed great on the bench.
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Old Sep 1, 2006 | 09:23 AM
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I don't think it's the cam. My cam was able to get me a little over 400 and it's small. Heads are flowing great as stated. With that setup 400 should be no problem. I'd say it's the tune.
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Old Sep 1, 2006 | 09:37 AM
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It's hard for me to realize when the stall locks up..(I havent had my car in 5 months) The guys said originally that it wouldn't lock up but they fixed it so Idk. I think I want to ditch the stall anyways for a larger one. I'm thinkin Yank 3600. I talked to a local buddy of mine and I was shocked to hear that he has trouble pulling on bolt on M6 LS1 cars too from a roll. He explained his car is all extreme torque, and he'll pull 4 cars off the line and stay steady. This is all so new to me..I figured hell I'd walk em all just as bad from a roll but now I don't know. I paid 5k to gain 2 car lengths 30-100 My heads/cam setup is top notch guys, it really is. I wanna get a fresh oil change, get 36lb injectors, and get a 58mm TB and take it there. I appreciate the further input guys.
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Old Sep 1, 2006 | 10:10 AM
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Originally Posted by Hark_Z
I wanna get a fresh oil change, get 36lb injectors, and get a 58mm TB and take it there. I appreciate the further input guys.
Thats a good start, those 50#s are overkill. If everything on your set up was installed right, your gonna have to re-think your tune. Your car should be faster...
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Old Sep 1, 2006 | 11:11 AM
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I made 385 at the wheels on a Dynojet and only ran a 12.8 with a 1.8 60'. The guys at GMR Speed seemed to think my converter wasn't holding when we were dyno tuning it. I haven't tried contacting Fuddle yet because of all this stuff I am hearing about them being hard to get a hold of right now.
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Old Sep 1, 2006 | 11:17 AM
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Yes Fuddle seemed like a great idea before but now lots of people are telling me it could be the converter not doing **** and eating it all up.
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Old Sep 1, 2006 | 11:19 AM
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Originally Posted by Hark_Z
It's hard for me to realize when the stall locks up..(I havent had my car in 5 months)
Here's one way to tell cuz I have to put up with my non lockup converter everday. While you're cruising in overdrive, just put the cruise on and you'll know if it's slipping or not! Going up and down little hills will really tell ya. It's like it's dropping down a gear but it really didn't. Does that make sense?
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Old Sep 1, 2006 | 12:38 PM
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Originally Posted by dhdenney
A Yank going bad kinda makes you wonder about any torque converter you get.
Belay your last shipmate. I have nothing against Yank and I dont blame them for what happened with my verter. Ive bought one new and two used and only had a problem with the one I bought used from Saudi Arabia. For some reason it blew up. Anyways yeah dude, dont rule out the verter. Theres alot of guys having various issues with Fuddle. Theyre in the hole right now. I hear John is in the hospital, whoknows. All I know is you have to look at the facts and the possabilities.
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Old Sep 1, 2006 | 01:09 PM
  #29  
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LTs, and true dual bullets? Might be causing a timing retard if you have stock KM.

also.....
Originally Posted by Hark_Z
and get a 58mm TB.
you dont really need a 58mm TB unless you have the intake port matched to 58mm and your making over 500 blown wheel hp and bringing the car over 7 grand. The intake is already 52MM stock so just get a 52mm TB for a nice gain.

http://cgi.ebay.com/ebaymotors/52mm-...22713002QQrdZ1

Last edited by Bowtie Boy; Sep 1, 2006 at 01:31 PM.
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Old Sep 1, 2006 | 01:26 PM
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Originally Posted by buffman
could be. those 50lb injectors could be killing you to, as they're way overkill on what you're working with.
I was about to say the same thing. I would put some 36s in there and lean it out a lil!
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Old Sep 1, 2006 | 01:59 PM
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well whether the converter is locking up or not has nothing to do with how much power he should be making. I dont know of many tuners that make the TC lockup @ wot in 3rd gear (unless you ask for it done). Besides if you have an efficient enough converter there is no reason to lock it up when making WOT blasts.

If you have a built trans, lockup should be easily detectable because it will feel like another shift. One thing you have to make sure to do is remove the checkball from the input shaft when going with smaller diameter high stall units, and to have the appropriate mods done to the trans ala trans-go shift kit.

To me it almost sounds like you're blowing through the converter. that happened to a friend of mine, who had a 9.5" converter from a well known shop (they seem to have a slum going for them as does fuddle). it was supposed to be a 3500 stall and anytime you'd get on it, it would shoot way up past 4000rpm. on the dyno, he couldnt even make a run as the converter will flash up all the way to his rev limiter...


I'd throw in smaller injectors, use the wideband info you have, and do some datalogging if possible
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Old Sep 1, 2006 | 03:46 PM
  #32  
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Umm maybe I'm missing something here guys, but I thought the size of the injectors does not matter as long as they are large enough for the application and are tuned right. As in he has 50lb and the pulse width would be shorter then 36lb but would still be injecting the same amount of fuel because the injector is bigger. This I believe is what I read, so as long as your car is tuned properly for the 50lbs you do not need to drop to 36's because the 50's are giving you the same amount of fuel...

I think that is right, Good luck,

Bill
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Old Sep 1, 2006 | 04:08 PM
  #33  
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that **** happend to me when i got my car back from the shop with my new motor, my bro's LS1 6 speed with all boltons(headders lid LS6 intake exc.) was dead even with me on the highway from i think 50-90 and i raced him from a dead stop to i think 100 and i had like a car on him. Now my trans is shot and cant go past 5000rpm without bouncing off the revlimiter so i havent been able to re race or anything.hmmm maby the converter is to blame, if u find out what is causing it post it cause it sounds like im having the same problem. I think i'm going to do a dyno run somewhere else and see what it makes.
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Old Sep 1, 2006 | 04:25 PM
  #34  
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whats the fuel pressure with the 50s?
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Old Sep 1, 2006 | 04:37 PM
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Originally Posted by dhdenney
Here's one way to tell cuz I have to put up with my non lockup converter everday. While you're cruising in overdrive, just put the cruise on and you'll know if it's slipping or not! Going up and down little hills will really tell ya. It's like it's dropping down a gear but it really didn't. Does that make sense?
My cruise doesnt work I found out today..And BowTie Boy, stock TB is 48mm Im pretty sure. The guys who worked on my car said they tuned the A/F just right and it was running fine at WOT, even with the 50lb'ers..Which seems true, the car doesnt hiccup and runs smooth at WOT. The first time Fuddle accidentally shipped me an LS1 converter so they screwed up there..Then they quickly slapped this one together so I just dont know.
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Old Sep 1, 2006 | 04:38 PM
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Originally Posted by buffman
well whether the converter is locking up or not has nothing to do with how much power he should be making. I dont know of many tuners that make the TC lockup @ wot in 3rd gear (unless you ask for it done). Besides if you have an efficient enough converter there is no reason to lock it up when making WOT blasts.

If you have a built trans, lockup should be easily detectable because it will feel like another shift. One thing you have to make sure to do is remove the checkball from the input shaft when going with smaller diameter high stall units, and to have the appropriate mods done to the trans ala trans-go shift kit.

To me it almost sounds like you're blowing through the converter. that happened to a friend of mine, who had a 9.5" converter from a well known shop (they seem to have a slum going for them as does fuddle). it was supposed to be a 3500 stall and anytime you'd get on it, it would shoot way up past 4000rpm. on the dyno, he couldnt even make a run as the converter will flash up all the way to his rev limiter...


I'd throw in smaller injectors, use the wideband info you have, and do some datalogging if possible
I need to watch it more closely but I believe mines flashes to 3600-3700 quickly
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Old Sep 1, 2006 | 04:39 PM
  #37  
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Originally Posted by Hark_Z
And BowTie Boy, stock TB is 48mm Im pretty sure.
Yes true the stock TB is 48mm but the stock intake ports are 52mm, port matching that with a 52 mm tb would be good step up.
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Old Sep 1, 2006 | 04:47 PM
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My friend is selling his BBK 58MM TB thats ported nicely, that should do well. He's gonna give me a helluva deal. Think a perfectly matched 52TB/52mm ported intake would be better??
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Old Sep 1, 2006 | 05:16 PM
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Originally Posted by Honda Hunter
Belay your last shipmate. I have nothing against Yank and I dont blame them for what happened with my verter. Ive bought one new and two used and only had a problem with the one I bought used from Saudi Arabia. For some reason it blew up. Anyways yeah dude, dont rule out the verter. Theres alot of guys having various issues with Fuddle. Theyre in the hole right now. I hear John is in the hospital, whoknows. All I know is you have to look at the facts and the possabilities.
Oh ok, I assumed you had bought the sucker new.
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Old Sep 1, 2006 | 06:44 PM
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Originally Posted by Hark_Z
My friend is selling his BBK 58MM TB thats ported nicely, that should do well. He's gonna give me a helluva deal. Think a perfectly matched 52TB/52mm ported intake would be better??


get the 58mm TB if you can get a hell of a deal on it.. It will work on the car, but wont help clean up an intake restriction until you get the intake ported for it.

and I'll throw $10 down on the Table that th intake bores stock are 54mm..


Hark what stall did you pay for?? if it's flashing near where it's supposed to be, stall could not be the problem.


as for the injectors yes as long as everythign is okay at WOT and so forth then they're fine. What is the AFR they tuned the car too?
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