New Track Times

[Venom351R]

what about adding 4.10's and 205cc heads then?

Just as the power aspect of the 205 heads being worth it or not?

I'll be back at the track tomorrow but w/ the MT DR's not the slicks. I;ll try shifting it higher and power shifting the gears and see where I am after that.

 

[95Vert]

what about adding 4.10's and 205cc heads then?

Just as the power aspect of the 205 heads being worth it or not?

Worth EVERY penny and MINUTE.

I do agree that this combo SHOULD have a lot left in it, short shifting it is definitely hurting your mph's and et. If you're willing to do a gear swap, do the gear swap and run it then. You might be able to reach YOUR goals with what you have now. It's just a matter of finding the sweet spot when it comes to shifing and launching.

With that being said, I add the following.

This is a deep subject and I'm not anywhere near an expert but I've read where this has been discussed and the AFR 185 is comparable to a TFS 170cc head. The overall design, the valve placement, and spark plug location are just a few of the benefits that the TFS head has over an AFR.

 

[Venom351R]

Worth EVERY penny and MINUTE.

I do agree that this combo SHOULD have a lot left in it, short shifting it is definitely hurting your mph's and et. If you're willing to do a gear swap, do the gear swap and run it then. You might be able to reach YOUR goals with what you have now. It's just a matter of finding the sweet spot when it comes to shifing and launching.

With that being said, I add the following.

This is a deep subject and I'm not anywhere near an expert but I've read where this has been discussed and the AFR 185 is comparable to a TFS 170cc head. The overall design, the valve placement, and spark plug location are just a few of the benefits that the TFS head has over an AFR.

I agree there is quite a bit more in it just as it sits now, I was just happy to get a new best ET knowing I still had room to work. I'm wanting to see how far I can get it down w/ just H/C/I and that's the reason for wanting to upgrade the heads and get long tubes b/c Id like to be pulling north of 350 at the wheels. I figured porting the TFSR, Long Tubes, Fox TB set up w/ an Acufab TB and TF 205cc Heads will get me there.

 

[95Vert]

You shouldn't have any problems getting AT LEAST 350 hp/tq out of your 351W.

 

[revhead347]

You don't need 4.30s, dude...... it's time to put the F'n bottle to it. You are in the same boat as I am, my car runs like ass on motor because it's geared to run on a bottle. Most people don't understand how much of a difference gearing makes. I run a 3.55 gear and trap 109 on motor. Once you put turn on the spray, it's a total different animal. I have no doubt I could pull 124mph on the bottle now.

There are lots of ways to make power, but there is nothing better than having a great set of flowing heads. AFR makes a good head for the money, but going to the TFS head, or if you can find an old set of Canfield 192cc heads like mine, that car is really going to pick up. That's my opinion.

Kurt

 

[Venom351R]

You don't need 4.30s, dude...... it's time to put the F'n bottle to it. You are in the same boat as I am, my car runs like ass on motor because it's geared to run on a bottle. Most people don't understand how much of a difference gearing makes. I run a 3.55 gear and trap 109 on motor. Once you put turn on the spray, it's a total different animal. I have no doubt I could pull 124mph on the bottle now.

There are lots of ways to make power, but there is nothing better than having a great set of flowing heads. AFR makes a good head for the money, but going to the TFS head, or if you can find an old set of Canfield 192cc heads like mine, that car is really going to pick up. That's my opinion.

Kurt

I hate nitrous I'll never use it. Plus it defeats my whole purpose of seeing how far down I can get my times on a H/C/I N/A set up

I refuse to buy a product that the cost of it is never ending.

 

[revhead347]

Well, if that engine doesn't get a little help, you are going to have to put some pretty tall gears in it to get some good times. At least a set of 4.10s. I think you are going to have to except that the times you have right now are pretty darn good. If you put some better flowing heads on there, you might be able to squeeze out a few more mph, but not sure it's worth it. I hated nitrous until I started using it. There is absolutely nothing like it. Blower, turbo, nothing compares. And everything you use is going to cost money regularly.

Kurt

 

[95Vert]

I hate nitrous I'll never use it. Plus it defeats my whole purpose of seeing how far down I can get my times on a H/C/I N/A set up

I refuse to buy a product that the cost of it is never ending.

I admire what you just said Venom, I've never been much of a nitrous kind of guy either. N/A is what I like best, too.

Well, if that engine doesn't get a little help, you are going to have to put some pretty tall gears in it to get some good times. At least a set of 4.10s.
Kurt

'4.10 is a pretty tall gear.' I had them in my SN with a GT40 heads, cobra intake, 302 cid and drove it everywhere and got @ 24mpg highway. I was a recruiter at that time and drove the car minumum 350 miles a week. Rpm's aren't bad at all. Hell, I'm going to be swapping them out for 4.56s, but that's just MY preference. But NO, 4.10s are NOT 'a pretty tall gear'.

I think you are going to have to except that the times you have right now are pretty darn good. If you put some better flowing heads on there, you might be able to squeeze out a few more mph, but not sure it's worth it.

This I completely disagree with. If my 310cid with TFS FAC heads, CI TLSR, and short runner intake runs a 12 anything et at 10xmph anything, I'm going to be pissed!

 

[Venom351R]

Did the street competition today at the track for the UPR Racing weekend. B/c of the really high temps and the fact I had to run my DR's I was not expecting any great times. My MPH did not improve either I tried shifting it higher but I was still trapping at 105MPH. I'll be back down tomorrow so I'll give it another shot then too. Im crossing the like at about 5,200-5,400 RPM and that's w/ my tach reading 200 RPM higher then what it really is so I think I may have to bite the bullet and get some 4.10's.

The class I was in does a 3 run avg, best MPH, Best overall ET, best RT. My 3 run avg got screwed b/c I missed a shift on my second run but the other two were only a tenth off from each other but I did cut an RT of .051 on one run so maybe I can snag that award

 

[95Vert]

I think something is wrong. Talk with Ed and see what he says.

 

[Venom351R]

I think something is wrong. Talk with Ed and see what he says.

Need to find out whats causing the CEL first. It could be pulling timing up top.

Ive been looking through the time slips over on dragtimes.com and I see lots of cars that are running around my times w/ the same MPH, they all have something wrong with their car too?


12.731* 107.920 8.155 85.430 1.746

12.715 107.590 8.117 85.520 1.756

12.726* 108.275 7.920 85.000 1.778

12.731* 107.920 8.155 85.430 1.746

12.737* 106.300 8.076 83.960 1.672

12.740 108.000 7.800 87.000 1.660



These are all times that are close to mine in ET and 60' time and the MPH is not all that different. I think it has a lot more to do w/ how Im shifting the car not that there is something wrong w/ it. Plus the fact that I'm crossing the line at 5,200 RPM w/ the 3.73's. I know my car pretty well and when something is wrong w/ it, I dont think anything is wrong w/ it. I just had it dyno tuned, put down good numbers for the compression its at and whats done to it. Yes the car has more in it but Im not a funny car driver either.

 

[95Vert]

The times are consistant with the mph's, but what I'm getting at is that you have a 351W with AFR185's, FTI custom cam, TFS R Intake and you're only managing a 12.7 @106mph. That's what I find weird/wrong. I hit a 13.0 at 105mph so when it comes to et/mph's, your car/driving is actually better than mine, too bad I didn't get a chance to run it anymore. Keep in mind this was with stock gt40 heads, stock cobra intake, and an unknown cam. All I'm saying is that you have invested/spent some good money on this combo and you're running what a 'stock' 302 runs.

Get those codes checked out and make sure you fix that, that very well may be what's holding your car back.

 

[Venom351R]

The heads were on the car when I bought it I only changed the cam and intake as far as the engine goes. I think for the fact that I have not gotten shift points down exactly yet and I'm only crossing the line at aprox 5,200. I dont even know the specs on the heads they might not even be 2.02 for the intake valves. Another thing about the shift points is that the car was not running right all year so I have not had much time behind it yet. Now that the car is tuned its just a matter of relearning it b/c it was not tuned last year. Also like I said I have to find out what is causing the CEL to come on. I ordered a OBD1 scanner it should be here by Thurs.

 

[Grn92LX]

Autozone tests codes for free, no need to order a scanner.

You need more gear plain and simple if you want to run the right number at the track. If you don't care and don't mind that it runs mild 302 numbers, just leave the 373s in.

 

[Venom351R]

Autozone tests codes for free, no need to order a scanner.

You need more gear plain and simple if you want to run the right number at the track. If you don't care and don't mind that it runs mild 302 numbers, just leave the 373s in.

They only scan OBDII and same w/ Advance Auto


I bought a scaner for $25.00 off amazon. Worth it IMO.

Im looking at getting a set of 4.10's next week.

 

[revhead347]

I honestly don't think 12.7 is half bad. That's a time pretty consistent with your HP numbers. There aren't too many guys here with similiar mods running much faster than that on this forum. Paul has some exceptional times with AFR 185 heads, but he is definately the exception and not the rule.

Kurt

 

[Venom351R]

Thats what I figured considering my previous 95 GT w/a paxton on it put down 330/340 and ran a 12.885 @108.58 w/ a 1.938 60'

my best time over this past weekend at the UPR Racing event w/ the extreme heat and crappy track b/c the rubber kept pealing up due to the heat was a 13.258 @107.27 w/ a 2.046 60'.

The car w/ me in it weighs 3,582.

 

[1slow95]

You need more power. I cross the line around 6200 rpm with 3.73's.

 

[revhead347]

I think Mike's setup above is a pretty good example. He is running 8/10ths faster, but he has a hell of a lot more motor than your basic 351 with AFR 185s. My car weights 3380 empty, so we're definately about the same weight.

Kurt

 

[Venom351R]

You need more power. I cross the line around 6200 rpm with 3.73's.

Power wise I dont plan on doing anything more then different heads and long tubes and TB but that's not until next year so gears will have to do for now. Im also going to work on suspension and weight. It has a damn road race suspension on it and Im trying to drag race w/ it