Wicked94z28

i know its not going to be the best without boost and its doing better then what i thought, but im saying it droped 7mph in the 1/4 when it should have gain'd, im gonna try to get this wideband working and check that out, and i want a set of ai heads but i just cant swing it in my budget right now, gonna have to wait untill this winter for them....

defaultexistence

iTrader: (11)

Good luck getting AI or LE to port those heads YOU "Gasket Matched" they are now junk to them.. you killed velocity in the intake ports and cannot be repaired, and a boost motor is gonna run like **** without boost ..obviously ..
What springs ? What crank are you running ? Tune?

96capricemgr

iTrader: (1)

His compression basically can not be as low as he claimed so those seeing that I agree what he said would be very bad but the actual build isn't quite that bad.

Far as "wanting AI heads" that is all fine and good BUT right now there is something more important to figure out, don't start over without first finding out what is happening now.


If the previous 11.9 at 116 with a 1.8 60ft was accurate then your 1.4 short times should take the same engine/car to low 11s.

I have to wonder about this whole thing though because a basic "gasket match" I would not anywhere near expect to get you to 116mph and that seems like a good slip for stock stall too. Could the heads actually be good, the timeslip maybe from the car in the other lane???? Something because this all just doesn't make much sense.

Z28Camaro30Ann

iTrader: (15)

My 97 Camaro is an SS with Leather interior, power seats, power doors and widows, AC, Cruise, TCS, ABS T-Tops, Subs and a Box weighing 75 lbs and heavy assed ZR1 rims. Even with ALL of that and my 175 lbs in the car I rolled onto the scales at 3410 total. That scale HAD to be WAY off.

A STOCK 94 Z is around 34-3500 curb weight...STOCK 02 WS6 is around 33-3500.

Add the LT1 into the 02 WS6 it will GAIN quite a bit going from an aluminum block to a cast iron block. Depending on the trim and options, that WS6 may actually end up being HEAVIER than the 94 Z28 was and that means you would lose time in the 1/4.

Losing one tenth in the 1/4 is not a dramatic loss. It could be a different DA. It could be a change in the motor as it breaks in a little more. It could be the different stall that is not jiving with the old setup. There are A LOT of variables here that could EASILY kill a tenth until you get the motor optimized. That stall may be a GREAT stall when the motor is at its full potential but right now you are starving that engine and it is begging for air. I do not know much about Auto's but I am throwing out ideas. Regardless, IMO you need to stop racing it until you get everything squared away. Upgrade the heads, get better springs, fix that ungoldly low compression or boost it and try this again. Just my .02

Z28Camaro30Ann

iTrader: (15)

Oops, I missed the increased 60ft times.

96capricemgr

iTrader: (1)

Maybe larger print will help, he said he has a 16cc dish which means his compression is at the very least near 10:1 maybe higher, a zero deck and Felpro gasket which would be common even in a poorly done build and compression is 10.78 assuming 56cc chambers, zero deck .039 gasket.

The 8.25 number he quoted would need 76cc chamber, pistons down in the hole .025 and a stock .049 gasket and that still comes out to 8.29.
He said gasket matched stock heads so the chambers are somewhere between 54-58 depending who you ask which is why I am using 56 as an average.

The only way to get 8.25 with his heads and pistons would be maybe with a rod that was too short for the piston.

BIGsmokey10

iTrader: (3)

Yeah as far as your car weighing over 4000lbs is not anywhere close to true unless you have a b-body... there scales are off to say the very least... If you are telling the truth and your car cuts sixty foots in the 1.4 that would leave us to guess that your car could run an et of low 11's possibly (thats assuming you have everything working correctly)... mph is consistent with a low 12 second pass so I really dont see anything that off as far as mph/et but your sixty foot doesn't match up at all.. Are you running out of gear and or do you have a trans that slipping? I don't see where your coming up with 8.25 static compression? Just cause someone tells you that, that is what your compression is, doesn't mean it is... You need to go threw your whole car from The Harmonic balancer all the way to the tires and figure out what you have and we can go from there.... So you say your new mods are


1.larger converter
2. ram air
3.granetilli maf
4. more timing
5. maybe 255lph pump

Well I see one thing in that list that would have a substantial improvement over when you had this motor in the camaro.. The converter will help out a ton with sixty foot times for sure.. The ram air is good for some power but realisticly you can't expect much.. don't know about the new maf but if others are saying it's **** and have good reasoning then i'd believe them, your much better taking your stocker and cutting the screen out of it... More timing is a vague statement for sure.. If you already had "enough" timing into it before and you put a "bunch" more into it your'e going to run slower.. Every motor has it's happy medium for how much timing it wants and that is completely dependent on various things such as what type of fuel your running, compression ratio, etc.... and the list goes on.. You really need to play with the timing and see how much it likes. Also as far as your fuel pump you need to pull the sending unit and verify that you have an upgraded unit.. I'm sure it is but there's no point in risking it.. my .02

JoeH

The old Camaro does not weigh 4000 lbs and as a general rule T/A's weigh even more!
Change back to the old TB and tune. Adding too much timing is a bigger loss then having
less. .4 in 60' is a huge decrease, did you change tires? What gear do you have compared to the other car? Was there a converter change? Are you going throught the traps in the same gear and RPM as the other car?

Wicked94Z

iTrader: (26)

OP should at the very least change his username...people are going to confuse us

Z28Camaro30Ann

iTrader: (15)

Hahahaha, I won't lie, I thought he was you at first man, then I looked at the number of posts and saw another post by you elsewhere and figured it out lol.

FAD2BLK93

Oh DAMN i thought it was U...and wondering why u would be posting this kind of problem! Confusion wooooo!

flame

iTrader: (13)

Put a fuel pressure gauge on it to verfiy you aren't dropping pressure at WOT. Put a wideband in and verify your WOT A/F ratio. Have it tuned properly for the mods.

trilkb

iTrader: (4)

wowzers...and I thought I had a stupidly built car

Wicked94z28

WoW slit of ppl saying its a stupid build but its eating their cars in the 1/4 and reliable as Hell... I came on here to ask if anyone could help not for ignorant ppl to talk ****... I know it would run a lot better with a 2000$ set of heads, but I have a family I have to support and a big add house payment every month and cant swing them atm...I'm saying my car went 11.9 with trash 1.8 60's and now is going 12.0 with 1.4's.... I used to hit 4th before going through the traps with the same gear and tire size, and now it don't even wind out of 3rd going through, tranny is fine......

Wicked94z28

And I hooked up the wideband and its going nuts, I thought I had it hooked up wrong so I checked everything and it wad fine, is jumping from 9.0 to 21.9 , so i just called and scheduled a dynotune for Sunday so hopefully we get it straightend out. Untill then, no racing for me...

sweetbmxrider

iTrader: (13)

Post your full slip for your best outing and your recent outing. Post up the track and the date/time. What do you think is happening if you went from trapping in 4th to trapping somewhere in 3rd?