hi,

I'm planning to do some mods on my LO3 in the nex half year. I've ordered some parts from ebay, which I have stored at my aunts house in the U.S. till I have everything. then I will ship it to germany.
what I have done till now can you see in my sig. now I'm gonna tell you what kind of parts I will install:

LT1-Cam from Impala (bought)
ELGIN Z28 Valve Springs (bought)
Stamped Steel Rockers 1.6 (still need)
Cloyes Timing Chain (bought)
Hooker Headers (bought)
Hooker Muffler 3" in/out (bought)
Carsound Cat 3" in/out (bought)
New Radiator (still need)
Oil Cooler (still need)
Chip (still need)
Make the Fuel Pressure Regulator adjustable (still need)
new sealings and stuff

so, I hope that I didn't forget anything.

I've searched a lot a few weeks ago, but now I've got a problem with the website at home so I can't use the search button, so I have to write from work.
my question(s):

1. cam: gind off-ok, anything else?
2. will I have enough fuel flow, when I just make the stock fpr adjustable?
3. will I need a complete custom chip or would be a stage2 chip ok (tbichips.com)? I know burning myself would be the best but that would be to much effort for now!
4.will a new camaro radiator be just fine or should I look after a 31x19 thing? I'm often on circle tracks, so I need good cooling!

what else do I have to look for?

and with all the mods listed above and in the sig, what do you think will it run on the 1/4 (now 16.1sec).
and what do you think how many hp will I have on motor/at wheels?
greetings

S!MON

sorry, I saw the "FAQ - LT1 Cam related questions ALLGOHERE " just after I opened this...sorry again.

 

You are right on track. Is there any particular reason why you are getting a new radiator. The stock one will work just fine for what you have planned. Also you should be okay with the stock fuel pump and injectors for now. When you add a set of heads later you will want to upgrade both because the stock ones will not be able to keep up. You also need to include gaskets that you will need. You will need intake, water pump, timing cover, thermostat and distributor gaskets to complete your swap. You are also really going to need more than an "off the shelf" chip to get the full potential out of your combo. If you insist on not burning your own you can alsways learn how to data log and send you info to another member or a chip burning place to have they get you a abse one. Your car will run but will prefer a custom one done rigth then and there with your car present. Also, you mentioned headers and a 3" cat and muffler but what about the rest of the exhaust? Did you mean cat back when you said muffler? If not the cat and muffler you have picked out are to big for the stock I pipe. You should get a cat back exhaust enlarge the whole exahust and not just sections of it. You are on the right track and should see nice gains when your combo is installed and tuned.

 

TBI's kick A$$ man i got 2 now and have had a few other TBI's....

89 RS 15.39@91.7mph. LO-3,700r4,3.42 gear's.sold

88 firebird 15.22@93.56mph. LO-3,700r4,3.73 gear's.sold

91 GTA 14.86@95.78mph. LO-5 ,700r4,3.73gear's.

69 AMX 9.63@143mph. S/s 390.

those are what my 4 TBi's ran but the LO-5 is died and getting swapped for a daul TBI 406.

the AMX is getting the 390 up graded as well rather restorted...

You should oull some awsoem times with them mod's my engine where all high miles...

 

Don't forget a good fourbarrel intake manifold and tbi to fourbarrel intake adapter.

Steve

 

@shifty: I will build a complete new exhaust in 3". Nothing will be left stock.
I think my radiator is not in the best condition. It leakes one time then I put in some "filler". also the engine is getting hot faster than normal...

@91gta: what have you done with your cars?

@steve: I also thought about an intake, maybe I find one cheap.
greetings

S!MON

 

Ok that sounds better. Yea your radiator sounds shot. I bet that filler didn't help any either. If money is no cost than alook at a B cool unit. They are lighten than stock and works tons better. If not that, than look in a yard for a low mileage radiator. You could probably get one next to nothing.

 

not ,uch basicly the 89 RS was stock sept for the gear swap from 2.73 to 3.42's..

and the 88 bird had 3.23 for 3.73 's only mod's on them too.


the 91 GTA had the Blowen L-98 swapped for a high mile LO-5 (350TBI) With some 3.73 Gear's....

AMX's is basicly sock how it came in 69 it's Hurst super stocker production race car.....they made 53 of them.

all i did was increace the C/R by .5:1...
swapped the 650cfm carb's for the 900cfm 4bbl TBI's...

it went from 10.80's to 9.60's ......

it was running 11.20's off the show room floor on 29x10.50R15 poly glass slick's after getting a set of 28x12R15 radail slick's it dropped into the 10.80's....

so i really didn't do much to hit the 9.60's.....

just miled the head's decked the block and gained .5:1 more compresion,floowing an extra 500cfm......

 

how did u only change gears and run that? car in my sig with 2.73's my car ran 16.6@85.5 mph have not ran with posi and 3.42's but i dont think it will knock off that much. thats alittle over a sec off.

 

hi,

@shifty: when it would be that easy here in germany you will never or just with very good luck find a f-body on a junkyard! these cars are very rare here in europe. that's also why I have to find the good parts on ebay.com. on ebay-germany the amount of items just for us-cars is only 2000 or something like that, no compare to ebay.com!

here we come to my next question: intake manifold. I have seen the TOTW, but it's really hard to pick out the right manifold out there. an edelbrock tbi manifold is too expensive for me, also there are more chances to get an edelbrock performer here in germany, because my aunt will kill me, if I send more heavy stuff to her

what do you think will be the best intake for my combo. should I stay with egr? I have to pass emissions here, and air is already gone with the headers!

I don't really know how high I can rev with the cam, probably to 5500 or more?
how much will be a carb-to-tbi adapter?

would a carb-intake be a direct bolt on (adapter/egr not mentioned)?

a lot of questions, hope you can help (you all allready did

greetings

S!MON

 

Good point. I had forgotten that you were from across tghe pond when I was posting. You are doing everything right on the radiator situation. As for intakes. This is one of those deals where you can read old posts till your blue in the face. I would stay EGR if I were you since you have the sniffer over there. I have never bought a carb adapter but that combined with a basic intake should still be cheaper than the edelbrock TBI intake. I got the Edelbrock intake for its ease of installation. It is literally a direct bolt on and nothing needs to be converted, changed, or moved on it to work properly. So even though it costs a little mroe it still gets my vote. With the new cam you will hit 5500 with ease and will be quite happy with the results.

 

emkay,

maybe I will find the tbi intake on ebay (even there it is hard to get one for under 200$). we will see.
thx for all the help
greetings

S!MON

 

Take a gander at the link in my sig for the registry, that should give you a good indication of what your combo will do. Some recommendations:

LCA relocators, LCA's, poly torque arm bushing and maybe bag the passenger rear wheel if you need more traction

Also, the dual fan swap in is pretty easy and definately works great! Other than that I think you're golden!

Good luck
Tony

 

Here ya go.

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2453712820

 

Intake: Few people mention it here - maybe it's not good enough for the hardcore - but I did a Weiand Action Plus #8000 carb intake - it was $120 new from Summit. But, your LO3 heads are the newer center-bolt - maybe the #8000 intake won't work - I used the older #416 heads on mine - you'll have to check on that - anyway the Weiand intakes are generally much cheaper

Rockers: Summit also has 1.6:1 roller-tips for $99 new - they aren't true roller rockers, but have roller tips - better than stamped, cheaper than true roller

Like I said, I did heads as well, so I have to get total new chip programming done. I might would think with the LT1 cam, bigger rockers, and exhaust, premade chip won't do it for ya. Mine runs super rich at idle, and have to set timing past the marks (over 16*) to get her to run at all.

 

@shifty: hehe, thx. saw that already. but I blasted my budget for this month and what I need next is a new clutch master zylinder-arghl

@camaronewbie: maybe weiand got one from this series for 87-up..I will do a search.
and I also thnik that I will need a totally custom burned chip now, there are just too many things that will be changed!
greetings

S!MON

 

Weiand makes a very good intake that has been tested to work well with TBI. It's the 7525: a single plane manifold that I believe is for 87-up heads and has EGR so you can remain compliant with emissions requirements.