golfinz

iTrader: (2)

Just got the car dynoed after putting a ported FAST 90/90 on...new numbers are 433rwhp and 402rwtq. This is up from 419/391 without the FAST.

Mod list:
Pat G Cam (227/231 .614/.617 112+2), ported fast 90 by tony mamo/90mm tb ported by Vmax/pete I, ARH 1 7/8, vararam, pulley, Ford 30#

Numbers are ok, I think my cam is holding back about 10rwhp. I dont think its optimized for the stock heads due to the huge lift. (227/231 .614/.617 112+2).

Edit for dyno pics: The circle is what Im talking about...I think thats where my power goes missing. O and Iphone pics dumdumdum

Mods: cam, lt, pulley, vararam, pre fast


Post FAST 90/90 (ignore the 390tq, the dyno didnt pick it up. Numbers were 432/402 all three times

Buckwheat

iTrader: (13)

I think your stock heads are holding you back at least 35 rwhp. Strong numbers though. How does she run on the street?

pastvertical

iTrader: (1)

sounds good man. i got a 224/230 with like a .605 or sumthing like that( dont have the card in front of me at this moment).. but i was at 428hp, but i had bad fuel and it was pickin up knock, so he backed off timing, and i got 420hp, and 404ish. ( dont even remember lol) but yeah. im plannin the fast setup and some good heads.. can you feel the difference with the fast 90 90?

and have you been to the track yet? since we have a similar setup ( curious about numbers)... .. and what tire you runnin

golfinz

iTrader: (2)

I dont really know whats holding the power down, Im going to try to scan the dyno sheet, you can clearly see where there seems to be missing power with the way the curve looks at about 5k.

I can do heads, but I think I might just keep it as it is till I can boost it, then get a blower cam. WI would be happy with 470rwhp with the ability to drive it everyday if needed, however. If keeping it na I will talk to pat g and pick my heads first then design a cam around those heads to maximize the power...I think thats one of the reasons why more people dont hit the high 480-500rwhp is b/c they pick a cam first then throw heads on when it should be reversed, pick the heads then a cam thats perfect for them

I ran a 12.3 at 120 with a 2.25 60ft (stock supercars at 40psi...a pure 100% street setup) and a DA of 1300 or so with the above mods, but the tune was a bit off. Im hoping for low 11s with tire/1.7 60ft.

The car rips on the street, I think if I had a different intake setup like a callaway or honker, I would pick up 5-8rwhp, as the vararam doesnt do squat on a dyno. Despite the lower numbers, it is a very fast car that would give any 500rwhp cobra a whoopin

BlkBird2000

iTrader: (10)

Numbers are pretty decent

98camaroLS1M6

iTrader: (35)

Congrats on the numbers!

Hardtop

iTrader: (3)

What were you looking to make? 433 hp 402 torque is damn good cam only.

golfinz

iTrader: (2)

I was hoping for 440+ since I have a mamofied FAST 90/90, which I dont think is too uncommon with other cams

itsjustaSB

iTrader: (13)

very respectable numbers

golfinz

iTrader: (2)

Car was tuned on the street too because I didnt have access to a dyno. I do plan on getting it to a dyno with my laptop on hpt soon to see if I can mess with fueling/spark to see if there are more dyno numbers. I then plan on logging/tuning at the track to see if I can get some better times.

My only concern is that with the vararam (since it is just 2 big scoops basically), the airflow is soo much different on the street than on a dyno, that fueling may be off when driving around.

LustrousWS6

iTrader: (1)

Well cost to gain was a little low on the intake but you have room to grow if you ever upgrade your heads (which aren't that bad to begin with). Otherwise, I'd say you're making fantastic power for cam only. Ask yourself this: what's torque like across the board? If it's flat (which it probably is), you're in great shape.

Damian

iTrader: (89)

Why? For ego purposes?

Cars need to be tuned for how they drive on the street. Not how they drive on the dyno.

Your #'s are respectable. There's probably more to be had with a different cam but it's not a lot. 10rwhp at most.

allngn_c5

iTrader: (3)

Just throw a good set of heads on there and be done. AFR 205's or even TFS 215's if you don't mind getting different rockers. I say AFR 205's milled to 59cc to raise compression, then watch your numbers go near the 500 rwhp mark.

How's the drivability ?? If its perfect then as Damian said why mess it up for a few more hp? My 402 doesn't have massive PEAK numbes, but it does have more power under the curve then just about any other N/A 402 I've seen so far. Very good manners, and only gets wild when you go WOT.

golfinz

iTrader: (2)

The car is great driving around on the street, I do have a little cold tuning to do as it will usually die if I come to a stop when its not fully warm (RAF is too low I think) but once warm it drives and runs great.

Damian, your right. I know the car is faster than a 430rwhp, if that makes sense.

Honestly, the curve isnt that pretty. Ill see if I can get it scanned today so I can post it up. Ive seen more power/better graphs from smaller cams (ie Pat G 224/230) Pat specd me this cam to be a little more wild/make some more power than his 224/230 since my lobes are LSLs

Nitroused383

iTrader: (10)

Stock 243 heads correct? Making 430rwhp is more HP than some of these guys make with milled PRC heads and TSP cams. Thats nothing to complain about. That cam is not a max effort cam by any means. You cant compare your dyno numbers to someone else's car unless it was done on the same dyno the same day. What you can compare on dynos is how much hp your car baselined at, and than how much hp you gained for your mods. You can't have your cake and eat it too!

golfinz

iTrader: (2)

Bump for dyno comparisons pre/post fast

PewterScreaminMach

iTrader: (7)

Nice gain with the FAST upgrade. I've considered upgrading on my car (similar H/C setup as yours) and I'd be happy as hell if I picked up 20+rwhp and 10+rwtq doing that swap.

golfinz

iTrader: (2)

Im pretty happy with the fast gains, just dont really know whats going on at about 5k where power takes a dive

golfinz

iTrader: (2)

Pat if you see this could you comment on the dip in power at/around 5k? Im curious on why it does it

Patrick G

iTrader: (14)

If the dip was not there with the old intake, but was there with the new intake, I feel that it's most likely tune/fuel related and not valvetrain related. Did you log the dyno runs to see what your spark/fuel/and TPS were doing at that rpm? I've seen funny things with Corvettes on dynos where traction control will creep in even when you have the car in competition mode. The throttle was actually closing around peak torque. Going into the traction control section and maxing out the torque values typically fixed this. Not sure if that's what's going on with yours, but it's not cam related. It's tune related.