 
     |
| Project 3400 Roller Cam Block (Page 20/82) |
|
raysr11
|
FEB 24, 01:36 AM
|
|
Well, I have my block and everything looks good. Going to get some DOHC pistons. As far as the cam vs the 1.6 rockers, way back in the thread someone had their cam reground by "Scheinder". Would that be the same as getting the 1.6 rockers? Money is about the same. One question, what head gasket did you use with the DOHC pistons? Earlier you said 3.4, someone else said "F" body 3.4, is that the cam/bird ironhead 3.4?
Thanks
|
|
|
|
lou_dias
|
FEB 24, 08:50 AM
|
|
| quote | Originally posted by raysr11:
Well, I have my block and everything looks good. Going to get some DOHC pistons. As far as the cam vs the 1.6 rockers, way back in the thread someone had their cam reground by "Scheinder". Would that be the same as getting the 1.6 rockers? Money is about the same. One question, what head gasket did you use with the DOHC pistons? Earlier you said 3.4, someone else said "F" body 3.4, is that the cam/bird ironhead 3.4?
Thanks |
|
You need 1.6 rockers to get the full .436" of lift. Stock Fiero cam only does .410 with 1.5's. Roller cam advantage is that the valve reach full lift sooner and stay at full lift longer which is why this cam outperforms any hydraulic cam you'd be wasting your money on in a non-roller cam setup. Unless your cam is damaged, I wouldn't bother with a regrind but that's up to you. I went with full roller rockers, I believe the stock 3400 rockers are roller rockers but not also roller tipped. I don't think you can use the stock 3400 rockers though. My motor is extremely quiet and smooth when I'm not on the gas.
Yes, I used the Camaro/Firebird 3.4 gaskets.
|
|
|
|
raysr11
|
FEB 24, 12:27 PM
|
|
|
|
|
lou_dias
|
MAY 15, 09:37 PM
|
|
I have now transferred the interior and exterior from the USELESS 4.9 car to this one![This message has been edited by lou_dias (edited 05-15-2011).]
|
|
|
|
Joseph Upson
|
MAY 16, 08:14 AM
|
|
| quote | Originally posted by raysr11:
Well, I have my block and everything looks good. Going to get some DOHC pistons. As far as the cam vs the 1.6 rockers, way back in the thread someone had their cam reground by "Scheinder". Would that be the same as getting the 1.6 rockers? Money is about the same. One question, what head gasket did you use with the DOHC pistons? Earlier you said 3.4, someone else said "F" body 3.4, is that the cam/bird ironhead 3.4?
Thanks |
|
I'd consider the regrind over the rockers for a conservative increase in duration to compliment the increased compression ratio.
|
|
|
|
Hudini
|
DEC 16, 09:31 PM
|
|
Bump. How's it running?
Where did you set the plug gap?
|
|
|
|
lou_dias
|
JAN 26, 03:34 PM
|
|
I settled on a .050 plug gap which got rid of the misses and left with only detonation now...
DarthFiero has at one point advanced my timing on the bottom end for some reason.
I sent him a new timing map and he burned me a chip. I put more timing on the top end and less on the bottom.
In this chip I also had him plug in some custom values to get both the speedometer and internal vehicle speed to be calculated correctly with the F40 transmission.
It's installed along with new headliner from the Fiero Store.
I have the car down to replace yet another HELD wheel bearing and the 12" front rotors and pads. Hopefully someday this car will drive smooth...
Unfortunately Summit doesn't expect to ship the rotors until February 6th... :/
Also still waiting to receive the bearing from the NEW owner of HELD Motorsports/Westshore... Erik sold the business...
Needless to say I will report the results of the new chip as soon as the bearing comes in and the new rotors.
If it drives smooth, finally, I will take it to a dyno again.[This message has been edited by lou_dias (edited 01-26-2012).]
|
|
|
|
lou_dias
|
MAY 15, 01:49 PM
|
|
Finally took it to a dyno with the Trueleo swap + '7730 conversion...
Results are disappointing.
158.52 hp @ 4600 rpm, 195.48 ft*lbs @ 3800 rpm. Air/fuel was 10:1 at 3200 rpm and 12:1 at 5100 rpm and on....
It almost doesn't make sense since I did 187/249 with the Fiero intake and stock ECM... Different dyno shops, but come on, really?
Well, no wonder I haven't snapped any axles with this setup...
I sent the dyno file to Ryan for another tune...[This message has been edited by lou_dias (edited 05-15-2012).]
|
|
|
|
Joseph Upson
|
MAY 15, 02:24 PM
|
|
| quote | Originally posted by lou_dias:
Finally took it to a dyno with the Trueleo swap + '7730 conversion...
Results are disappointing.
158.52 hp @ 4600 rpm, 195.48 ft*lbs @ 3800 rpm. Air/fuel was 10:1 at 3200 rpm and 12:1 at 5100 rpm and on....
It almost doesn't make sense since I did 187/249 with the Fiero intake and stock ECM... Different dyno shops, but come on, really?
Well, no wonder I haven't snapped any axles with this setup...
I sent the dyno file to Ryan for another tune...
|
|
That stinks for all the effort, you may need Darth at the dyno to make realtime adjustments to get all of the potential out of it. 12:1 is good but I bet you pick up some power by lifting that 10:1 area up to the same.
|
|
|
|
Will
|
MAY 15, 02:39 PM
|
|
Same tune between the two setups?
What did your AFR's originally look like?[This message has been edited by Will (edited 05-15-2012).]
|
|
|
|