1991sleeper

iTrader: (-3)

Thanks man ... I should have some track times soon ... and I do kinda wish I woulda went a little bigger with the cam but not as big as the one comp suggested .. I don't think k the bottom end would hold up to the rpms that cam would need to make good power ... but if I were to do it again I woulda at least went with a 112 LSA and mabey around 220-222 @ .050 on intake side ... I think the total valve lift of this cam combined with the 1.6 RR is right in the sweet spot for these heads ..

91' firebird .. 305 TBI .030 over , balanced bottom end , speed pro hyper flattops , 10.6:1 CR , all ARP rod bolts and main studs , melling HV oil pump , trick flow super 23 175cc heads, Howards HR 214/218@.050 .488/.495 lift on 114 LSA , full roller 1.6 RR = .520/.528 lift , summit dual plane intake port matched , shorty headers into 2.5" Y w full 3" flow master system and 3" cutout in front of axle , msd billet dizzy, 620cfm TBI , custom CAI , tubular adjustabke LCA pan hard , umi torque arm wonder bar , BMR trans cross member , COMP engineering SFC's, disc rear w 4.10's, drilled an slotted rotors, EBL flash , VRFPR, WBO2,

Ronny

iTrader: (1)

My last misfire(>5000rpms under load) was a worn cap and rotor. Replacing new made it go away....

1991sleeper

iTrader: (-3)

Everything in the engine bay is brand new except a few sensors and they all work ... its not really a misfire ... it feels like u took your foot off the gas pedal litterally ! My dad said the trimming may b too high but I font think so. ...

I think its either the injectors not keeping up 68#ers @ 25psi or the ignition system just not being able to keep up at high rpm

91' firebird .. 305 TBI .030 over , balanced bottom end , speed pro hyper flattops , 10.6:1 CR , all ARP rod bolts and main studs , melling HV oil pump , trick flow super 23 175cc heads, Howards HR 214/218@.050 .488/.495 lift on 114 LSA , full roller 1.6 RR = .520/.528 lift , summit dual plane intake port matched , shorty headers into 2.5" Y w full 3" flow master system and 3" cutout in front of axle , msd billet dizzy, 620cfm TBI , custom CAI , tubular adjustabke LCA pan hard , umi torque arm wonder bar , BMR trans cross member , COMP engineering SFC's, disc rear w 4.10's, drilled an slotted rotors, EBL flash , VRFPR, WBO2,

Ronny

iTrader: (1)

Now that I think of it I had another misfire that was a loose rotor. Not sure how that could happen but it did. Loose enough that it must have been bouncing around

1991sleeper

iTrader: (-3)

Yea I've checked all the basics ... I need to catch it in a datalog.... also if I'm doing a burnout it goes right to 6k to problem no spiting or sputtering is nothing .. just when its under load soon as it hits 54-5500 it just falls in its face ... feels just like u took ur foot about half way off gas pedal

91' firebird .. 305 TBI .030 over , balanced bottom end , speed pro hyper flattops , 10.6:1 CR , all ARP rod bolts and main studs , melling HV oil pump , trick flow super 23 175cc heads, Howards HR 214/218@.050 .488/.495 lift on 114 LSA , full roller 1.6 RR = .520/.528 lift , summit dual plane intake port matched , shorty headers into 2.5" Y w full 3" flow master system and 3" cutout in front of axle , msd billet dizzy, 620cfm TBI , custom CAI , tubular adjustabke LCA pan hard , umi torque arm wonder bar , BMR trans cross member , COMP engineering SFC's, disc rear w 4.10's, drilled an slotted rotors, EBL flash , VRFPR, WBO2,

ownor

iTrader: (5)

we need a log to get this sorted out man!
also, have you tried running it up to 6k on lighter throttle action?

1991sleeper

iTrader: (-3)

I think I got it earlier I'll post the log here in a few

But anyways ... jus got some new rubber on the back yesterday ! Soooooo much better than what was on it ... the old ones were way too small ... they were 25.5" tall with 8.5" tread width now I have 27.5" tall with 10" tread width ... I can actually use 1st gear now lol







91' firebird .. 305 TBI .030 over , balanced bottom end , speed pro hyper flattops , 10.6:1 CR , all ARP rod bolts and main studs , melling HV oil pump , trick flow super 23 175cc heads, Howards HR 214/218@.050 .488/.495 lift on 114 LSA , full roller 1.6 RR = .520/.528 lift , summit dual plane intake port matched , shorty headers into 2.5" Y w full 3" flow master system and 3" cutout in front of axle , msd billet dizzy, 620cfm TBI , custom CAI , tubular adjustabke LCA pan hard , umi torque arm wonder bar , BMR trans cross member , COMP engineering SFC's, disc rear w 4.10's, drilled an slotted rotors, EBL flash , VRFPR, WBO2,

1991sleeper

iTrader: (-3)

How much should I change the VSS pulse per mile for a 2" increase in tire diameter ? Thanks ! It was almost perfect according to highway mile markers

91' firebird .. 305 TBI .030 over , balanced bottom end , speed pro hyper flattops , 10.6:1 CR , all ARP rod bolts and main studs , melling HV oil pump , trick flow super 23 175cc heads, Howards HR 214/218@.050 .488/.495 lift on 114 LSA , full roller 1.6 RR = .520/.528 lift , summit dual plane intake port matched , shorty headers into 2.5" Y w full 3" flow master system and 3" cutout in front of axle , msd billet dizzy, 620cfm TBI , custom CAI , tubular adjustabke LCA pan hard , umi torque arm wonder bar , BMR trans cross member , COMP engineering SFC's, disc rear w 4.10's, drilled an slotted rotors, EBL flash , VRFPR, WBO2,

1991sleeper

iTrader: (-3)

Well I drove the ole bird 247 mikes yesterday and used exactly 3/4 of a tank a gas doing between 70-85mph with some 85-90mph stretches Here n there ... not too shabby IMO with 4.10 gears ... 3000 rpm is 90 mph according to GPS ... I think that's the farthest ive ever drove the car in the whole 6-7 years I've had it ... and I haven't drove it more than 60 miles one way since I rebuilt the engine ... which was also my FIRST engine build by myself EVER ! ... So needless to say I was a bit nervous

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

ownor

iTrader: (5)

that sounds nice indeed, congratz.

on the milage, i wouldn't really rely on the tank gauge tho. a better procedure is to fill it completely, reset the trip counter (no idea what the exact name is) and then refill it completely again, and read milage from the trip counter and gas from the pump.
that is, unless you can't choose to fill up completely with the pumps in the states.. i forget. we usually have a latch that stops filling when the tank is full (i think that is based on backpressure from the tank or something).

did you get your speedo sorted out?
and also that higher rpm issue?

1991sleeper

iTrader: (-3)

Yea unfortunately my trip counter stopped working .. speedo still works but its way off cause its still set up for the stock gears ... ebl flash speedo reads about 2mph slower than GPS and the trip counter on ebl is about a quarter of a tenth of a mile off according to highway mile markers .... i m figuring I get around 24-26 mpg at 65-70 mph ... but ebl flash says I'm getting like 35mpg lol (I wish) ... n I don't understand that cause the settings are all setup to match my injector flow rate at WOT (27 psi) but it runs about 20 psi cruising and 15 at idle ..also idles around 19-20 in.hg. on a good day sometimes less ... I think after I get the tune PERFECT it will idle about 22 in hg

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

ownor

iTrader: (5)

i see, well you can still set your EBL according to exact GPS speed and then go from the trip counter on the EBL for milage on longer trips maybe?
i'm not sure how the WUD calculates the mpg, but i *think* it can't account for a VAFPR because you just set the static injector flow constant, but i might be wrong here. Anyways you might have to go back into the bin and look at that INJ MPG flow constant, or tune that to get better results off the MPG display if you're into that.
19-20 inHg sounds very good to me already! that would be about 30-35 MAP??

1991sleeper

iTrader: (-3)

Usually 35-40 map on the ebl

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

Oh and when they recommended that cam I was gonna use the stock swirl ports ! With some home porting

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

Help !!!! Stupid vats won't let me crank my car ! And I'm halfway to Tennessee ! Just stooped at agas station for a min and come out and it n't do nothing !

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

RS-Chevy-SS

1) Calm Down

2) Take the key out and leave it out for 10 mins. VATS will reset and allow the car to start

3) If that doesn't work either the key chip or lock cylinder is shot.

1991sleeper

iTrader: (-3)

Thanks ! .. it finally reset after I quit mess in with stuff for about 10 min ... how can I disable vats or do away with it all together ? I'm thinking I need a new lock cylinder & key

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

Fast355

iTrader: (2)

Disable VATS in the EBL calibration. Then bypass the VATS relay that disables the starter.

1991sleeper

iTrader: (-3)

Well I believe I am going to the local 1/8th mile this Thursday ! ... any estimates out there ? ... remember i m running a pretty crappy exhaust setup right now with all crush bent crap and summit shorties with 1.5" primaries .. I'm shooting g for 2.0 or better 60ft on street tires as my best with stock engine was 2.18 with crappy tires

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

I also took the valve covers off today .. to check the rocker adjustment .. and after a lot of reading on high rpm HR setups I adjusted them 3/4 of a turn from bottomed out instead of the usually 1.5 turn after zero .. asls noticed today that ALL my blowby that was coming thru the valve covers after the rebuild is finally GONE ! So that's a relief ... I would definitely say that moly coated rings do take longer to break in

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

Well went to the track just to make 2 hoorible passes and get rained out ftw ! ... the tune still needs work .. but I was trapping at 81mph whatever that comes out to ... so I've piked up 10mph trap speed ..60ft was horrible .. also I'm only grabbing 3 gears now instead of 4 ...weird ... I guess that extra rpm range give me enough to make 4th hear not needed also have a slightly taller tire now

Edit: also something funny goin on with my rearend ... think ilk pull cover n check the fluid tomorrow ... but it felt like my axle was trying to push itself out of the differential on launch or something ... weird ... idk much about rear ends but mabey some c clip eliminators are in order ?

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

I believe I'll b pull in out 8.5 sec passes fairly easy after I get everything worked out ...might pull my front sway bar off next week .. check my diff fluid lower my tire pressure (I was at a full 50psi tonight) and may even drop the exhaust system for ***** n giggles ....... I had some horrible 60ft @ 2.48 my best 60ft was a 2.19 I think before the swap ...pisses my off this track don't have 330 times on slips

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

ownor

iTrader: (5)

i dont know a lot about drag racing, but why would you pull the front sway bar?
2.48 is pretty slow from comparing.. what exact tires are you running now, rubber mixture/tread profile design?
also i'd guess the tbi would put out quite a lot of torque and that's even amplified by the 4.10 gears. prolly running a lot of slip on launch?

1991sleeper

iTrader: (-3)

Yea I'm just running some all season continental used tires I paid 80$ for both backs ... I'll get it dialed in next week ... and let the tires down to about 20 psi... I get in free next Thursday

Edit : pulling front sway bar is supossed to help weight transfer

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

Just ordered 2 pypes perf. m-80 round case mufflers I'm gonna come straight off headers with into s turndown about half way down training tunnel .. they are 2.5" in & out with 4" case .. so should tuck up well

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

So what does a 82 mph trap come out to with say a 1.9 60' 1/8 th

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

Fast355

iTrader: (2)

Maybe an 8.50

1991sleeper

iTrader: (-3)

We'll I got some LCARB from founders on the way along with some pypes perf M80 round mufflers I'm gonna come straight off headers with mufflers into turndowns n call it good .. then tune my wot next track outing.. my AFR was all over the place ..

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

Well as restrictive as my crappy exhaust is right now I'm expecting to pick up another 3-5 mph trap speed .... which I will also b cutting 50-60lbs off ... I'm just gonna run them 2 M80 mufflers straight off headers into turndowns n b done with it ... 2 2.5" instead of 1 crush bent 3" all the way to axle into flowcrapper cross flow ... also adding founders lcarb's and founders strut towers tomorrow when everything arrives ... with my hood pins ! So we will b seeing what the top speed is soon as well now that I won't have to worry about the hood flying off

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

New best of 8.854 with 2.08 60ft .... my wheel hop is finally gone ! ....and I'm still running my crappy exhaust setuo

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

ownor

iTrader: (5)

that's with the LCARBS on? do you still get a lot of wheel slip or..? it's still not particularily fast in 60ft i'd say.
i downloaded the logs of your WOT pulls you posted lately but then didn't get a chance to look at them.. how did the mouse run this time?

Fast355

iTrader: (2)

Its harder to get a good 60' with a manual trans. If he stays at it, his 60' will get better over time and his ETs will get better. What was the MPH on the 8.85? 84 or so?

1991sleeper

iTrader: (-3)

82 mph ... my wheel hop is finally gone but it still spins like crazy with street tires I gotta baby it out the whole bad ... most of my catalogs show no more than 60-70% tps in first gear then second gear lays about 5 feet a rubber ... I'm.crossing the line in 3rd gear at 56-5800rpm at 81-82mph... I need dome taller tires

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

ownor

iTrader: (5)

yeah i guess a torquey TBI setup on a 4.10 rear gearing sure don't help much with the spin, heh but atleast you got the wheel hop fixed i'd think with your suspension upgrades it shouldn't hook so bad otherwise?

1991sleeper

iTrader: (-3)

Yea its just the street tires everything else is good ... got my founders strut towers put on too n damn they look good ! .... I put the control arms all the way on the bottom hole I think I might try out the next one up ... everything in my rear suspension is adjustable now except the umi full lenghth torque arm .. but I do have s BMR trans cross member so I can at least change the angle of the torque arm that way .. its about in the middle of the adjustment now... I'm also gonna play with the strut towers to get the feel I want .. which my swaybar is still removed but it foes ride much smoother without it so I may just leave it off unless I go to an autox or something like that ... it is the biggest factory swaybar that was available (the hollow 1) 36mm I believe .... but I believe the way it sets it would run 8.35 or so with drag radials ... and my 8.000 goal will b possible with new headers and full mandrel bent exhaust system

Edit: oh and I'm gonna add about 1" taller tire so I can get a lil more mph in 3rd gear ... so after all that it should trap around 86-87 and run 8.00 on motor then its gonna get a 100hp wet kit to put it in the 7's every once in a while or just when its needed Lol ... prolly start it off with 50 shot then work up to 100 slowly to help it out of the hole ... cause it runs damn strong from half track on ... nobody believes its a 305 haha .... my window number is 3OH5 ... n I'm gonna put 310cu.in. decals on the hood cowl/scoop whatever jus to F wit ppl ..... overall I'm happy with it so far and it does exactly what I built it to do ... and that is give all these new retro muscle cars a run for their $ plus leave several 350 powered cars looking at my taillights .... lol ... which it does white well :-)

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

These tires are actually exactly 26" tall now with no tread left so I'm gonna go uP to about 28.5-29" which should also help my 60ft and give me more mph at the other end

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

RS-Chevy-SS

What are you doing for tuning? Don't know if you've been following my thread, but we are having issues deciding on injectors, sa table etc. Would be cool to take a look at your tune although you put out more power than I do.

1991sleeper

iTrader: (-3)

Ebl flash and TT-1 wbO2 ... and tunerpro

68lb injectors at 28psi with aero motive vrfpr brings it down to about 17-19psi at idle

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

Only video I got the guy in the black ta had a good wrench 355 and was only running like 9.50's so ya .... I brat him by like 4 cars every time

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

ownor

iTrader: (5)

that's a good job then i'd say nice! what would that approx. come out at for a full quarter run?
yeah sounds like you'd need some better tires to actually hook
how's the tune going?
also, were you talking about taking the front rollbar off or..?

1991sleeper

iTrader: (-3)

Yes with drag radials and full exhaust system including long tube headers I will b running 8 000's on this motor

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

After I meet my 8.00 goal its getting a 100shot wet kit :-)

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

Can't wait to get this next job over with and get my new exhaust fixed up ... also might swap to a single plane intake .. I believe the distribution with TBI would b better with a large volume single plane

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

Just removed the front swaybsr ... and the tune is going good I think I'm finally just changing one thing at a time at the track with data logs so I can see what's going on during these 8 sec runs

Also I've lost about a 1" of tread wear so I've actually lost some mph .... I need to hit the junkyard for some 15" steelies for some drag radial action

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

1991sleeper

iTrader: (-3)

Well 4k rpm in 5th is 119mph according to GPS .... it would take forever to pull all way to 4k in 5th before

91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!

RS-Chevy-SS

I hear you on that. Way back in my highschool days when I first started driving the car I topped it out. Couldn't tell it if was 115 or 95 though with the bouncy speedo.

At any rate, seems like it took FOREVER to get to the top of 4th with the LO3. At least 6 miles lol

1991sleeper

iTrader: (-3)

Ya the fastest I ever got this car to with LO3 mostly stock was around 110-115 in 4th with 3.08 gears then stick it in 5th and mash to floor and it would just set at 115 didn't matter how long u held it to the floor , going down hill , with a 30mph back wind lol .. wouldn't do nothing in 5th ... then I swapped to the 4.10's and it seemed to do about the same top speed just a little quicker ... ran like a 9.87 or something at 72mph before I rebuilt motor so I picked up about 11-12 mph in 1/8th and I'm running right at the same 60ft as I was before ... but I was also running the exhaust with a 3" cutout open right before the rear end back then ... now its run all way over axle into the flowcrapper crossflow with 2.5" inlet/outlets due to a speed bump removing my cutout for me lol ... whole exhaust is crush bent 3" & 2.5" Y CRAP! From headers back right now so its prolly flowing what a single 2" would flow mandrel bent lol .. prolly worse

91' bird 305 TBI T-5, trick flow 175 cc heads, 4.10 gears, lots of suspension upgrades. 24mpg @ 2500rpm hwy. 8.80@ 84mph 1/8th on street tires... 8.000's soon

Fast355

iTrader: (2)

Yea time to get all that crush bent junk out of there. My Vette runs a 2.5" pypes exhaust system with a X into hooker aerochambers and now has hooker super comp long tubes. Last time out it ran 8.30s @ 90 mph in the 1/8. Stock stalled TH350 and 3.07 gears and 275/60R15s street tires. The holley was bogging a little off the line. The single plane and 680 vacuum secondary carb combination on a 305 needs a little more stall speed especially with the 110* LSA cam. Was going to swap back to a performer rpm vortec but found something new instead. Using Wallace racing calculator I get 265 HP based off ET and 350 HP based of MPH. Knowing it has a crappy 60', I would say it is probably somewhere between those numbers. 330-340 HP would be my guess. If you can get to 90 MPH you could run a 7.99, IMO.

The 305 is going away though....For this bad boy a 95 F-car LT1 350 with a Lunati 218/228 cam and a 2,600 stalled TH200-4R. Probably going from 3.07s to 3.73s. Should put down about 435 HP and similar torque. Roughly using the Wallace Racing HP/Weight/ET calculator looks like it could run about 11.00 @ 122 mph if everything was right. With me sitting in it the car was 2,950 last outing. The modernization, EFI bug bit me so I figured why not make some more power and improve the fuel mileage of the car. Its currently getting 22 mph with the 3spd non lockup automatic and a holley 4bbl. Probably be able to top 30 mpg with the LT1 and TH200-4R. Going to need some upgraded half shafts and some stickier tires for sure.

1991sleeper

iTrader: (-3)

Ya according to the HP calculator I get 320 fwhp and 287rwhp .. I think some bigger primary long tubes and u full mandrel bent setup would improve those numbers greatly

91' bird 305 TBI T-5, trick flow 175 cc heads, 4.10 gears, lots of suspension upgrades. 24mpg @ 2500rpm hwy. 8.80@ 84mph 1/8th on street tires... 8.000's soon

Fast355

iTrader: (2)

If you are really serious about getting some extra power out of your setup.

http://www.summitracing.com/parts/ho...t/model/camaro

Backed up to a single 2.5 to 3.5" merge Y from vibrant performance into a mandrel bent 3.5" pipe and a single in/single out 3.5" muffler with a single 3.5" pipe out the back. Will give the best HP/TQ gains possible. The crossflow mufflers do not flow worth having to be honest and I feel a single 3" is bit too small.

Single 3.5" is just barely smaller than dual 2.5" in flow area but higher in CFM.

I know some people will ask, why not single 3"......Single 3" is actually nearly a full inch smaller in flow area than dual 2.25" pipes. Dual 2.25" pipes are only good for a little over 350 HP without restriciting the engine. The factory ran 2.25" to single 3" exhaust setups on the truck and van 4.3/305/350s.

I would also hunt down a factory L69 or L82 air cleaner setup and run a hypertech powerbowl on the base with the air cleaner opening setup to match. This deshrouds the injectors and allows you to plumb cool air into the engine.

I know some people will ask why this setup...Seems overkill....blah blah blah.....I have two reason.....Nitrous or a bigger engine when you get tired of the 305 will both increase the exhaust flow tremendously. Might as well set up for going even faster while you are in there.