i had a great night tonight. the car ran very well for the transmission/carb situation. i'm pretty sure it'll want a larger carb and the car was so lazy off the line with the powerglide that it felt like the 305 was in the car from like 5 years ago, lol!

best 60' was a 1.68. nothing steller. it didn't really feel like it was pulling hard till about 100' out.

went an 11.69 @ 118 right off the trailer. that pass was with 28* of timing. put 2* in and it went an 11.60. another 2* and clicked off an 11.57! ultimately i made 5 passes, the best being the 4th pass with an 11.52 @ 119.6mph. went 7.38 to the 1/8th.

considering i'm running a glide, 4.11 gears, an old 8" ati converter (ordered in 1988, never been cut open!) and the DA was 2424', i thinking i did pretty good! it pulled like a freight train on the big end.

the only problem i seem to be having is a weird tach signal issue. the autometer crapped out last week, so i bought a summit brand shift light that has a digital read out for engine rpm. once past 4000rpm the readout goes to zero and the shift light never comes on, so i was shifting it blind. not sure what's going on with that yet. i'm going to try a buddies tach/shift light and see if that fixes it. if that's the case, then i'm going to buy a play back tach to help further data log.

overall, i'm very pleased with this evening. had this been november, i don't doubt that it would have run some 11.2x's or better.

 

Thats awesome man! Im glad its starting to run good I know you have had some problem with the car. Definitly decent times and I bet you will even drop that a good amount. Keep us updated!

 

Still have a ton more in it buddy, good job on the first day out. Keep tuning it and you'll get the good shots.

 

i think the th400 will make a big difference

 

Got to love a LS, I wish I would have went that route. Great times and congrats.

 

Good job especially for the first time out. Sounds like its got some low 11's in it once you get it dialed in.

 

those are pretty solid numbers. what's the run down on the 6.0 agin? cam specs, heads?


sounds like a really fun street car

 

Yep, I believe it's gonna like that 400. Keep us updated, we're considering an LS for a future project.

 

370ci 11.5:1 scr
232/240 .595/.609 112+4 9:1 dcr
PRC stage 2.5 ls6 heads
untouched vic jr (have you seen the insides of this thing? it needs a port job like whoa!)
proform 800 cfm carb (borrowed...need to buy my own...thinking 950ish)
msd 6010

powerglide, 8" ati converter, flashes to 4500rpm.

4.11 gears, 275/60/15 MT ET Street Radials.

 

couple of pics and a video of the third pass, which was an 11.57 @ 119mph







http://www.youtube.com/watch?v=TQ7TWYLTjxA

 

What did it trap in the eight?

 

Thats awsome. You probably slept good last night with those timeslips. You should get the numbers off the coverter and call ATI to see what the converters set up for. The T-400 with that converter would probably come alive. Glides can pass a lot of horsepower through them and if the converter is loose enough it will run just like anything else. If you stick with the glide that it can be cut and loosened up to around 5-5200 for big results.

 

the converter was built for a 400hp 350 in a 2600lb monza trying to run NHRA super street back in the late 80's. it had a big tire and was a tube chassi car. the car ran 10.8x's at 120 back in the early 90's. so i know it's not optimal. it's also setup for a glide input shaft as it's such an old unit that going with a turbo input shaft on the glide was still uncommon enough to make it unfinancial for my dad to have it built that way.

no worries dude, i'll be calling you guys for a converter soon

zone, the car trapped 94+ in the 1/8th.

 

heh, i bought my converter used also. came out of a NHRA top dragster running low 7's @200. had it cut open and adjusted for my car by fti. its been working wicked good so far.
hey, since your already running a glide, maybe consider getting another one built with turbo input. get a converter for it, and run the bottle!

 

well....i still street drive this car some. it needs to be able to make a 30mile cruise without boiling the trans fluid. to get the car to leave correctly i'd need a ton of converter and a ton of gear, both of which are not conducive to street driving. i mean, it doesn't need to be able to be daily driven, but it does need to work as a spare vehicle.

i was thinking an 8" converter for a th400, along with some other lightweight parts for the 400, and keep my current 4.11's and it'll be street-able and rip up the track like a full tilt glide car.

 

Nice Matt, I was going to go friday too but decided to stay home because I got off work to lated.

 

ah man, that would have been so cool had you gone! you could have met my wife and all!

 

you really need to put a bottle in the car. this would let you run a much tighter converter and less gear.

 

i like the way you think


probably be able to go to 3.73's and then a converter that stalls under 4k on the motor.

 

Well, i think you have allot let in the tuning. And the trans/converter. The carb you have should be fine. Anything more and it should be too much carb. I hope you can get 2-4 more MPH out of the engine. My buddies LQ9 with head i ported and a torqer V2 cam did 96 MPH and your heads are way better than the 317s i ported that only flow 270.

 

it was the first night out....it'll get better

to diggler and brandon, i know what you mean, but i really don't want to put nitrous on the car. it's always got it done on motor, and i'd like to keep it that way. now my goal with this motor is 10.99 @ 123ish. i don't think that'll be too big of a deal. i can probably do that with just a bit more tuning time and some good air.

 

always got what done?

 

just racing in general. being impressive in general. like the 305 that was street driven daily that ran 12.3x's and stuff. nitrous has no appeal to me. there's no glamour in it.

 

With a motor like that id break the bank and get the latest 1000DP Holley.

Its a fricking monster, built for monster engines.

Know allot of guy going to that once their race built 800Qjet wasn't enough and were blown away at the upgrade.

 

the glamour in nitrous is keeping the streetability of your car while making it at least a full second faster.

 

Yea, i am putting the 150 hit on my car to shut up a bunch of **** talking about a 89 stang that was side by side with me on an old tune, he was on a 150 shot and has a 100 shot on a second stage, so i am pretty sure i will MURDER him on a single 150 that is going to my car this month. This is of course street racing.Everyone is dick riding the mustang, and i am like look man, my car is a stock truck motor with a cam and carb conversion and you cannot pull me on a 150 shot? They say well you have more cubes, then i say, and more weight, get over it.

I know some cool mustang guys, but these are puss!es.

Their buddy called me out with a couple less mods on a 175 shot and i busted his *** so they are all relying on the other car with 2 stages...there will be hurt feelings and i think they wont be mine.

 

ive been working on another LT1 car lately that should be in the 6.50-60's range next time out. its a stock type rebuild with .030 hyper. pistons, 224/230 cam, and bone stock heads/intake. he's been running an nx 125 shot through a single fogger nozzle. he can swap wheels and cruise it wherever he wants. it was running consistent .80's last time out before the last round of mods.

still running the stock 10 bolt with the stock 3.42 gear!

 

Not bad at all. On the video to me it sounded like valve float or the rev limiter on the 1-2 shift.

 

that was the rev limitter. again, i had no shift light and no tach. lol

 

That makes sense. I can't wait to get my new 6.0L installed after seeing your results. Just waiting on the shop to fit me in.

 

Congrats Matt! You get to a 2.48 low gear instead of that 1.76 and she's gonna ride out.

 

yes sir! i'm thinking upper 1.4x's won't be out of the question since i went 1.56 with the basically stock ls1. that puts the car in a 6.9 range, and like a 10.8ish range. basically exactly where i thought it would be, even though i had skeptics.

 

Sounds like the converter might not be to far off(for a 3-speed), and for the investment cost you might think of having it cut-open and switched to a turbo spline.

 

Makes me wish i had funds for the turbo project to get under way, it will be a stalled TH350, so no manual trans for the 90, it is a factory auto car anyway.

 

jp, the converter is not mine. it's my dad's. it works so good, that i don't want to mess with it. i'll be buying a new converter when i build the th400. can you point me in the right direction on good 400 parts that won't break the bank? obviously i want it to be as light as possible without sacrificing strength

 

if your just going to run n/a, i would probably just do a stock type rebuild/freshen up th400. i ran one for a long time and it never had any issues. footbraked 6.20's with it quite a few times.

 

Stock is not "lightweight" though. The 400 I've been running is basically nothing more than a decent vb and a 34 element sprag. It's full roller thrust bearings, but I don't really consider that a "mod" for a performance trans.

Budget wise, a good quality performance clutch kit, a 34 element sprag, and a good valvebody will handle all you have to throw at it and then some.

To go lightweight with them, the best way is John Kilgore's "superlight" trans. He completely re-designed the drum configuration and took a ton of reciprocating weight out. - The more comon options are billet aluminum or billet steel drums(both of which are lighter than the stock cast drums). The aluminum drums are considered a "wear item" and will need maintenance/replacement at times.



Do you have one yet or no? I have two fresh w/ rev manual/trans brake vb's that I need to part with. One is a chevy "HD" case, the other is a standard case that is cut for an ultra-bell(no bell). Both are 34 element sprags, hi-energy clutches, teflon sealing rings, roller thrust bearings, and BTE pro vb's.

 

****, i have a longshaft core, that needs to be converted to a short shaft, and completely built. it's completely stock and has been sitting. i'd be willing to buy a ready to go unit though as expensive as this stuff is to build. shoot me a pm with a price and stuff. do you have a converter for it?

 

hmm dont tell pat musi ( 200 mph 1/8 th mile this weekend first in nhra competition with nitrous) or shannon jenkins or a host of other guys that theres no glamor in spray lol

not a bad first outing there bud, however glide to 400 it might actually slow down, all that weight in there wont help. them heavy rotating drums use alot of power. and 950 might be too big on the carb, in fact that "tip in" problem that everyone is covering up with accelerator pump indicates you are already close to overcarbing. just my opinion but hey what do i know.
anybody got some 26's Matt could use to see if she picks up some?

 

funny how even pro systems adds as 50cc pump shot to ALL their ls based carbs. I have build sheets from 5 different motors with 750 to 1050cfm 4150 based carbs. All come with big squirters and 50cc primaries. I don't think a low 11 second motor is overcarbed with a 750 at all. These motors move a lot more air than old sbc and in fact make more power than most mild bbc so I can see them wanting a lot more pump shot to make up for the transition period.

 

let me reword my statement. i see no glamour in 10 sec nitrous cars. i'd like to see it get there all motor.

based on the lack of 60', the car needs something to get it out of the hole faster. but i don't want to put more gear in it cause i street drive the car still.

 

I run 4.11 and 28x10.5 and my 60' is a lot better. I'm sure the th400 will help you out sir.

 

I'll lay $500 on the table right now says that his current combo will go faster with a 3 speed than the glide. Yes, he could optimize the glide with lower rear gears and an even higher stall converter, but we all know how truely streetable that would be. - As for the general "glides are faster due to their lighter reciprocating weight", tell that to JK about his Superlight, or tell it to the many heads-up racers switching from glides to Rossler XHD's and turbo-glides.

I've said it before and I'll say it again; powerglides are the reason companies make quick release cooler lines and a handle that bolts onto the back of several aftermarket cases.

*none of this was intended as a bash towards car_fixer, I just dislike glides. lol

LS motors tend to have a lot better volumetric efficiency, thus need more carb to feed them. - The standard carb CFM formula from holley still works well, just that most over-estimate their VE and thus over-carb. With a decently assembled LS, you can stay to the high end of the formula and maintain positive results.


That said, my old-school stuff uses four(4) 50cc pumps; 2 each on 1250 dominators...... that and aggressive pump cams along with 1:1 linkage, plus we hit it w/ the spray the moment the t-brake releases........metric sh*t ton of fuel

 

shaggy, i dont like glides for heavy cars, and his car needs a three speed. but doesnt justify a 400. sell the 400 build a long tail 350, drops right in with oe driveshaft. I have stock raybestos clutches and flog the hell out of it , he could drive all day with a good 5k stall converter and be fine just use a big cooler. and with that setup probably wouldnt need to mess with 50 cc pumps as his engine sits, bigger cam maybe so. when he has a nasty 632 with a bread drawer for an intake plenum and soda bottles for intake runners then yeah, 200 cc of accel pump will be needed. I really would have liked to see him stick with fi on it, but hey budget does dictate some things and unreliable wiring could really suck lol if you wanted to get technical he could build a 375 and keep a 350 driveshaft but still, heavy and big. unlimited budget, id still run a 350 in mine with aluminum drums.

and once its on the 2 step, the accel pumps dont do any thing

 

i would also do a th350 if your staying n/a.
main benefit of a glide is the 1st gear ratio on a faster power adder car. it has less tendency to go up on the bumper than a 3 speed. a few weeks back i accidentally knocked the trans in 2nd gear right after i let go of the tbrake... the car dang near ran the same as usual... lol

 

If he doesn't plan on going faster than 10's, then I agree. If he ever plans to push it harder than 10's, IMO th350's start becoming more costly and still less reliable.


As for the accel pump, I was just joking about my combo; they're obviously two different worlds(for note though even the new spray combo is under 600ci). - Still though, most LS based engines with a single plain intake will require a 50cc pump on the primaries. I've not messed with any myself, but have been around plenty at the track and I keep an open eye about combos and set-ups and how they seem to work. Most any solid launching LS with a carb has a 50cc primary pump, thus I personally wouldn't try to "re-invent the wheel".

 

My opinions on transmissions....

T-350's are headaches! They good for 400 HP steetcars that visit the track once or twice a year. They have week cases that shatter, unlevel valvebody surface that leak, week intermediate sprags that cost al lot to upgrade and still break.
I run one in my car (500Hp) and everytime I get to the burnout box or the line I wonder if this is going to be my last pass of the day. Sux when your making your first or seconed pass.

T-400's......
Awsome transmission that can handle 800-900 HP close to it's OEM form. Like stated here already, get a 34 element sprag, a good valvebody and a good overhaul kit with some Alto products and forget about your trans. It's done. It's worth the cost of the conversion and definetely worth the extra added weight. Against the 350, it's like a 7.5 rear against a stock 9inch. Thats my opinion. However, they have there limits like everything else. I believe that 8.50's-8.70's is the cutoff where your making the power to tame it down with a Powerglide. Even know the T-400 can be built to handle 7 seconed cars, I believe it's a headache trying to get them down the track with a three speed.

Powerglide.....
I have very mixed feelings about these transmissions. They are great for the career bracket racers that don't care about thrills just consistancy. These people are all over the country and at every track. 12 seconed Vegas and wouldn't here of a 3 speed.
There also good for guys going 9's and faster possibly with power adders because they can concentrate on things like there tune ups and making more power or going faster without the distractions of wheelstands and agressive launches.
I also feel like someone who is discusted by the fact of pulling a transmission in and out should stick with a P-glide because they can be built right from jump street and should never fail if they have the right parts/build.
Guys running low 8's to mid 6's in my opinion should consider P-glides for all of the reasons I mentioned


Those are just opinions.

 

I really feel I need to say something, Matt is a smart guy. he had one hell of a 305, that thing ran great for a 305 without alot of high dollar stuff on it. That being said, Matt get off the computer, you know how to make that car run, it is just an engine. Take your time, do it with a logical plan, get your main jets close to optimum first then worry about the rest. I get the impression that you are starting to think you dont know what your doing after the fi problems and then bearing stuff........You know what to do bro. and for a street car with that single plane intake I would try a plenum divider in the intake.
As for th350 reliability....I never worry about that, the two failures I have had in several hundred passes...transbrake solenoid (real old probably over 10 years) and a bellhousing after the 3300 lb car jumped on it. I dont think I can get upset about those and I wouldnt say it lacks power, pretty sure Matt would agree too lol

 

you speak alot of truth rich. i'm very gun shy right now and feel i'm in a realm i've never ventured before. that being said, i'm going to the track again tomorrow night to do more testing.

the power glide is staying for now. i'm not touching the converter or the gearing. i'mn going to work on the tune. i got a new netbook that will aid with the timing. i also took about 50lbs out of the car tonight. i'm hoping to get the car to run 120mph tomorrow. i'll get the th400 going this winter. i'm going th400 for a few reasons. one is because i'll never have to worry about it. the other is because i've already got it.

after the track tomorrow, i'm going to probably hang it up till the fall when we get some better air. 2400' DA is almost a waste of time down here when you get negative DA's all the time in the fall/spring. i've been promising the wife we'd start on her chevelle when i get the camaro straightened out. well, it's about straight now i think.

 

amen rich! always try to take a step back and think about what YOU want to do with YOUR car. i check LS1tech every once in awhile, and the biggest problem i see over there is people following each other around like lemmings. they dont even try to think stuff out on their own, and instead rely on what others have done. which most times is some other guy's 12 second ride. lol

is there no tracks down there running at night? there is a couple up this way, one of which i am trying to attend tomorrow. the heat is pretty tolerable at 10pm or whatever.