Carlos773

iTrader: (3)

So pretty much once my friend bought his 1989 Trans Am the little racing bug has kicked in. Right after he purchased the T/A his cousin went out to buy his own car which is a early 90's Miata. I recall 94 but its early 90s. From my point of view, he purchased it pretty much just to have the moment my buddy had since he purchased his T/A. His brother who owns a 04 Bmw 330i basically brings up the subject every once in a while about racing my Camaro and my friends Trans Am. The thing is my friends Trans Am is not 100% probably not even 75%. Here is the line up:


1992 Camaro RS:

-97 LT1 W/ 52mm TPIS Throttle Body, Hedman 68460 Long Tubes, True Dual 2.5'. 68460s>Summit X-Pipe>Summit Glasspacks. PCM was Supposably tuned for 4th gen Longtubes 4' Single exhaust & 3100 stall.
-92 700R4, Planning to take it easy on it. If it breaks then being fully built to support the LT1. Stock stall for now but going 3100 stall soon.
-9 bolt 3:27 Posi PBR, Founders Performance Panhard Bar & Lower Control Arms, Aluminum Driveshaft, WS6 24mm Rear Sway bar.

Car should weigh in at around 3050-3150 w/o driver.


1989 Trans Am ''GTA''

-5.7L 350 193 Swirly heads with TPI Top W/ 24lb Bosh III's. Exhaust coming soon.
-Stock 700R4, Stock TC
-2.73 10 bolt
-Stock weight



2004 BMW 330i

-110k~ miles
-Sports package: 17' Wheels & Steptronic. Still Automatic.
-Otherwise stock no modifications.
-3385lbs Stock weight
-Rwd

Performance info from online research:

225hp @ 5900rpm & 215tq @ 3500rpm . 3:07:1 Gear ratio. 5 Speed Auto with Steptronic. 6.4 sec 0-60


1994 (Early 90s as far as I know) Mazda Miata

-Stock as far as I know, 150k supposed miles.
-2200lbs?
-No idea on motor, 1.6 or 1.8. 1.6 is rated at 115bhp @ 6800rpm & 100lbftat 5500rpm. 1.8 rated at 131hp. 0-60 7.9 seconds.
-5 speed manual.

whitedevilTA

iTrader: (8)

FYI, not all GTA's are 350 cars. There were 305 TPI GTA's as well, so your freinds may very well just be a 305 car. And also, the TPI set up on the 305's is 100% identicle as the one on the 350's with the exception of the fuel injectors (19 lbs for 305, 22 lbs for 350) so the LB9 TPI will not "choke" a 350 what so ever.

And also, I think you should take all of those cars. My brothers 350 TBI swapped 92 camaro trapped 96 mph in the 1/4. He had a 5 speed but his was all stock, and you have mods. He also only had 2.77 gears. Your set up is probably very low 14's to high 13's. The beamer is high 14's at best, and your freinds trans am if it's a 305 will get beat pretty good as well. If the miata is stock, he's toast too. If he's modded, who knows. Good luck it it happens though.

Carlos773

iTrader: (3)

I figured my rs would have the edge over them i have brought up that the 330i performance numbers in the past and have said a stock healthy iroc or trans am can prob take the bmw. It also went uncared for and turned into a bmw is higher caliber and ford and chevy can never compare argument. I would just want my buddies ta to go against the 330i if his brother desires to go against my rs then so be it

transamws6

bmw is not fast.. bmw is mainly sharp..bmw needs good shifting and good gas acceleration at perfect timing its a precision performance race car....my father worked on bmw his whole life and they can be beat but most of them are sharp and quick depending on driver...but going back to trans am and camaros we can floor them all day long we still be fine ...bmw is a car designed for a driving enthousiast ...miata from top of my head is jap crap so ull be fine there...lol

whitedevilTA

iTrader: (8)

It's not just BMW, that goes for any car. Good shifting and all that is more of a driver mod than anything, and thats what makes a car fast. A car that runs a low 12 1/4 mile stock can easily be made to run in the 13's if you suck at driving. It makes a BIG difference.

transamws6

true

iroc stangs

I agree the miata and the bmw is nothing to worry about, the old miatas are slow as azz and Iv rid in my friends dads 330i and even when they got onto it hard, I had no doubt even our durango could take it from an dead stop, so your camaro would have no problem.

Carlos773

iTrader: (3)

Ohh im not worried at all about them, If they do decide to actually run their cars against me I know they are gonna be seeing my rear end everytime.

As for the Bmw, well I tried showing them what kinda car performance wise the 330i is, but like I said, they just deny and go into how they think its fast and then how good of a quality bmw is and so on, even know with my friend having his T/A I still think he probably thinks the 330i is fast. I like the car don't get me wrong, but its just an all looks thing, I would never buy one for performance reasons which is what they don't seem to get.

As for the Miata, who knows we made fun of his purchase alot but he probably does not know about it, but making fun of someones car well atleast me to me motivates me to work on it to prove em wrong, So I would not be surprised if he surprises them if so.

Thirdgen89GTA

iTrader: (5)

Oh, i'd worry about the BMW. you wrote:
That is L98 territory. Its an auto. So unless he flubs the launch he's going to do decently well. The TQ is lower, but the RPM comes in decent in the range.

Most L98's were typically 6-7 seconds depending on condition and the 330i will be right there with them. Its also a 5sp auto so its gearing will be closer than a 700r4 which has a rediculous spread between 1st and 2nd.

The Miata will lose a drag race, however its handling and braking are excellent. There is a very good reason that Miata's are all over the place at Auto-X events.

As for your RS, its not stock so unless you can get to the track not much to say about it. I hope you threw a cam in the 350 before you swapped it. The stock cam is horrid in TBIs. The heads are bad, but not much worse than a L98 head which doesn't flow all that well in today's world either.

Carlos773

iTrader: (3)

No idea if that is the actual correct specifications but it was the first info I found on it, I do recall the hp being 220~ from previous searches. As far as being worried about it, Looking at 1/4 runs it seems the 330i can run anywhere from 14.5-15.2. 0-60 ranged from 6.5 to even some getting close to 7 seconds so its one of those things you can't really be 100% sure.

I predict him trying to use the Steptronic feature which will probably hurt him a bit, since I am sure he will since they say the car is half-manual but not 100% auto . I know off the line hes 100% toast no doubt about it. I know with everything I have done I can launch the RS hard and get a good traction for a good launch. He has said though that he wanted to do rolling starts which to me right away meant street race, which I dont fully agree on. To me 1/8 or 1/4 at a local track is the way I want to do it.


My Rs even with the old 2.73s and poo exhaust pulled very hard up to 70 but never took it over that but traction was always a problem at launches. As far as the L05, I really do not know If I want to work on it, Its basically a stock L05 with bolt ons. I am really not gonna spend much on it since I really want to do another swap soon, I have alot of choices which is either build this 350 up from the help of my neighbor that does it for a living or just swap to an LT1 and do a Cam upgrade and bolt ons and be done. My next plans are pretty much suspension and the only thing I might do is get a better torque converter.

Thirdgen89GTA

iTrader: (5)

I had a fresh 350TBI (stupider moments) in my GTA when I bought it because the engine was blown. Stupid me at the time did not know to check the cam specs and head casting #'s of the engine I bought. So I ended up with a peanut cammed L05 with a TPI on top.

The absolute best it could do was 15.3 @ 87mph. Sure, adding headers would have helped, as would a CAI and eliminating emissions.

Would it have given me an extra 7mph or so to run with an L98 in good condition? I doubt it. The cam really held it back.

If you've got a stock L05 cam in there, don't expect much out of it. The heads are also a big limitation. If you are lucky they will make about 160 to 170cfm on the intake, with maybe 120 to 130cfm on the exhaust. They are very restrictive. Iron l98 heads aren't much better. Its just comparing it to stock LS3 heads that flow over 300cfm on the intake which is just plain nuts for a stock casting production head.

Carlos773

iTrader: (3)

The stock L03 went up in flames, literally. When my father owned it, he tried his very best to get it running, he eventually did and well on his way to work it burned some wires and caused a good smoke show that made the fire department drive a few blocks to hose it down. It sat in the driveway ever since until I got interest in it and fixed some minor VATS problems. My father got a deal on a 5.7 L05 from a rear ended Suburban. Pretty much same situation as you, did not know what I was getting.

Granted like I said it really felt healthy, I like it. Its probably not the fastest thing but that aside, I know it can take on my buddys basically same setup with a TPI top and the 330i and Miata.

As far as performance goes, Who knows I might put some time into this L05 and see what it can do. I have easy access to LT1 camshafts from yards here and can probably get a good one for free. I also plan to swap to TPI since I can get decent deals for a complete setup.

As for your time, that is not that bad, This L05 has enough grunt for me right now and with my rear upgrades, hopefully it launches better and does not go fishtailing everytime I get on it.

Carlos773

iTrader: (3)

Thanks for clearing that up, well if the fuel problem is not it, then it might be something else wrong with the setup since it does not like to idle right sometimes or even start. More headaches for him to come then.

Nice times, and that would be great if my RS would run those times, would get me exited enough to work on the motor and get rid of the crippled heads and cam and see what I can squeeze out of it but cant tell until I go to a local track and find out.

The one thing I really want to find out is the gears of my friends T/A, being a 10 bolt and regular drums makes me thing its probably a regular 2.73 rear but who knows, only way to find out is jerking the cover off and seeing but I doubt he will want to do that. Right now he plans to convert it away from MAF and fix some body panels. I would love for him to upgrade his crappy exhaust and me knocking on it hopefully motivates him, it really makes the car sound bad. I know a good exhaust upgrade would really wake up his 350 and his desire to work on it more than he is.

Carlos773

iTrader: (3)

Updated.


My 92 is getting a 97 LT1 swapped in and I am working on my harness while my cold calms down. The only changes is me going with a X-pipe dual exhaust over H now.


Alot of progress has been made to the 89 GTA. Got it running very good when warm. Has some cold start issues but we seem to be dialing it in. Upgraded the injectors to Bosh III's 24lbs and noticed it helped out alot. Car even sounds different. Once cold start issues are somewhat resolved or controlled, It might get some exhaust work. Probably a 3' single exhaust. I will try to guide him into swapping out his 10 bolt for something better.


As far as the BMW its still stock and I see no changes to it. As for the Miata, the guy who owns it is saying it is leaking oil but myself think its just an excuse to get his weak engine out, first he planned a rotary now says a LS1 swap. I might just remove him from this since it seems he will never get anywhere.


Right now its basically my friends 89 vs his brothers 330i. I know my LT1 92 will prob eat them alive.

86White_T/A305

Since no one else is going to mention it then ill give you fair warning.Dont let that miata get an lsx swap or your toast lol.In stock form Id over look that car just like everyone else..but those cars if there is any decent power put in them..they will run perfect circles around you lol.They are light as hell..handle very well..cheap to mod,if he does a small turbo setup or worse. lt1 or ls1 swap with 6speed..he will have the last laugh.

If I was him..Id build it to be a totall sleeper and keep it as stock looking as possible...hide it in the garage and bring it out when duty calls.Im hoping to build my ls swap to be a sleeper aswell..stock sounding but topend screamer.

Carlos773

iTrader: (3)

Ohh he's never gonna do anything to it I just don't take him seriously. First it was a rotary swap then lsx now turboing his stock motor. He just seems like one of those scene kids that what he sees online or in a magazine he wants and says he's gonna do. The most important point is that he doesn't have the budget for anything I would guess. I don't think pushing carts in menards pays much and from what I havge been told he didn't even pay for his car.


I am more concerned about getting my buddies 89 trans am running good and helping him to work on the motor. I would love to see what his lo5 with a lt1 cam and tune can do against my lt1 swap.

ninetyone

iTrader: (2)

Um, an L98 has almost 150 ft/lbs more torque than that Bmw 330i at the same rpm. Go figure.

ninetyone

iTrader: (2)

Bolt on L98 Iroc car should do 0-60 in about 5.5 seconds.

Carlos773

iTrader: (3)

Haha I recall telling my friend that a healthy stock L98 thirdgen would run circles around his brothers 330I and he refused to believe it. This was before he owned the trans am. Now that he does he knows all my **** talking about his brothers 330I was somewhat true. I see the car as a idiot/normal person eye catcher. To a car guy its just another fancy car with no cohones. I know his brother even loosing will say his 330I is superior but that's just how he is.

As far as the race. I would love and look forward to go against my friends trans am since its bound to happen. I am not done with my car so putting final specs down on is impossible. Hell the lt1 is not even final if I complete the swap and I get a good deal on a ls1/6.0 then its swap time againn.

ninetyone

iTrader: (2)

The stock Automatic Iroc Z from 1990. 0-60=5.8 sec 1/4 mile= 14.4 sec

stock 350 L98 specs are: 245hp@4000 345ft/lbs of torque@ 3200 rpm

I would not go by most of the Firebirds or Trans am times because most were only the 305 5.0 motor.