If you search there have been plenty of threads to answer the threshold of the motors.

http://dsmtuners.com/forums/search.php?searchid=2258678

I think you be hard pressed to get 450 HP out of the 14b.

What is the full extent of all your mods? Your not gonna get 450hp outta a 14b, sorry to let ya down. From what I've understood, the stock headgasket holds til about 23-25psi. What are the fuel upgrades?

i don't want you guys to tell me how many hp i'll get... i just want to know what stock end can withstand

and i got my answer


thank you

If anyone happens to do a search and comes across this thread, here is some useful information. The bottom end is not rated so much at how much psi it can handle, but more so how much hp it can handle. Of course, the stock headgasket and studs will be a limit here so lets assume this said motor we are discussing is stock but with ARP's. A 6bolt should be suffice for 450 to 500whp. A 7bolt for 400 to 450whp.

Now, a well tuned motor will obviously last longer than something that isn't. How ever you get to these said numbers, whether it be 25 or 35psi or with nitrous or whatever, its up to you. Its the end result that you want. So a 50trim with racegas and 28psi makes 500whp and a gt35r on pumpgas and 24psi makes 500whp. Catch my drift? BTW, the numbers used for the turbo comparison was just a guestimate.

Your 14b won't even come close to pushing your engine to its limits so don't worry.








<=== somebody HATES me or more like jealous! ... !

Close friend ran 29 lbs on a fp red. Headgasket,headstuds, and cams . 7 bolt btw. Car movveeeed

How long your car last will be in how much you beat on it and the tune, have a poorly running car and you wont be having much fun.

Lets not forget about our valves. Since they are a two piece design they will separate if pushed to far and that will ruin your day. I've heard no more than 24psi with stock valves. Also don't forget that at 18psi the 14b is at it's maximum efficiency rating and also craps out at around 6,000 RPM. My car sees 20-21psi daily with my 14b. I have ARP's (torqued to 95 Ft. lbs) installed and I'm using a felt AutoZone head gasket. Been holding up to more than it's share of abuse for nearly two years now setup like this.

does anyone here run with urethane engine mounts without balance shafts?

cause i get this (i think) phantom knock... with just regular driving i get a spike of 25-42 counts of knock and when i step on it i get about 42 in second... and about 27 in third..
could it be due to hard engine mounts?


let me try to post a log..

TIMA TPS RPM KNCK INJP

1st gear

12° 11.0% 875 0 1.79ms
11° 16.5% 875 0 1.02ms
11° 26.7% 906 0 4.61ms
16° 28.6% 1094 0 4.86ms
20° 26.3% 1500 0 4.86ms
21° 26.3% 1906 16 4.61ms
20° 25.9% 2156 38 4.10ms
14° 25.9% 2125 43 4.35ms
13° 25.9% 1938 42 4.35ms
12° 29.0% 1719 42 5.12ms
8° 31.4% 1469 42 6.66ms
1° 31.4% 1313 42 7.42ms
-5° 31.8% 1156 42 7.68ms
-5° 34.1% 1125 42 7.68ms
-5° 48.2% 1344 41 8.19ms
-5° 49.0% 1438 41 8.70ms
-5° 51.0% 1500 41 8.45ms
-5° 59.6% 1625 41 8.19ms
-5° 61.6% 1781 41 8.45ms
-5° 61.6% 1875 40 8.96ms
-5° 61.2% 1969 40 7.94ms
0° 61.6% 2219 43 7.94ms
4° 61.2% 2344 43 7.94ms
5° 60.4% 2469 43 7.94ms
6° 60.4% 2656 43 7.94ms
8° 60.4% 2969 43 8.70ms
8° 67.5% 3094 43 9.47ms
6° 79.6% 3438 43 11.01ms
5° 80.8% 3719 43 10.50ms
7° 81.6% 3781 43 14.34ms
3° 82.7% 4094 42 16.13ms
1° 89.0% 4719 42 19.20ms
-2° 94.9% 5063 42 21.50ms
-2° 100.0% 5594 42 19.46ms
0° 99.6% 5938 41 19.46ms
1° 99.6% 6156 41 18.69ms
1° 98.4% 6469 41 18.94ms
-1° 38.4% 6625 41 14.59ms
5° 11.0% 6000 41 2.30ms
31° 11.0% 5656 28 1.54ms
36° 11.0% 5469 17 1.28ms
41° 11.0% 5125 4 1.28ms
45° 48.6% 5031 0 7.17ms

second

30° 100.0% 4375 0 9.47ms
26° 100.0% 3563 0 10.24ms
21° 100.0% 3875 0 12.29ms
20° 100.0% 3969 0 13.82ms
18° 100.0% 4125 0 15.36ms
15° 100.0% 4375 0 16.13ms
15° 100.0% 4500 14 18.18ms
5° 100.0% 4813 25 20.22ms
2° 100.0% 7906
6° 100.0% 6094 23 19.20ms
6° 100.0% 6188 23 18.18ms
6° 73.3% 6344 22 17.92ms
5° 11.0% 5906 22 3.33ms
29° 11.0% 5781 15 1.54ms
41° 11.0% 5500 3 1.28ms
45° 29.0% 5250 0 3.58ms
45° 97.3% 5000 0 9.73ms

third

27° 100.0% 4813 0 12.54ms
21° 100.0% 4313 0 15.10ms
18° 100.0% 4344 0 16.38ms
10° 100.0% 4438 21 20.22ms
3° 100.0% 4438 21 22.27ms
3° 100.0% 4500 21 22.02ms
4° 100.0% 4875 21 21.76ms
3° 100.0% 4750 21 23.04ms
4° 100.0% 4813 20 21.76ms
5° 100.0% 4875 20 22.78ms
6° 100.0% 5031 20 21.50ms
6° 100.0% 5000 20 22.27ms
6° 100.0% 5156 20 20.48ms
6° 100.0% 5219 19 20.22ms
6° 100.0% 5344 19 20.48ms
6° 100.0% 5250 19 20.48ms
6° 100.0% 5313 19 20.22ms
6° 100.0% 5531 19 20.22ms
6° 100.0% 5500 18 19.20ms
8° 100.0% 5688 18 19.97ms
8° 100.0% 5844 18 20.22ms
8° 100.0% 5844 18 20.22ms
9° 100.0% 5969 17 19.20ms
9° 100.0% 5844 17 19.46ms
8° 100.0% 6125 17 18.69ms
9° 100.0% 5969 17 18.94ms
9° 100.0% 6125 17 19.46ms
8° 100.0% 6219 16 18.69ms
8° 100.0% 6188 16 18.94ms
8° 99.6% 6375 16 18.94ms
8° 99.6% 6219 16 18.69ms
7° 65.1% 6344 16 17.92ms
7° 11.0% 6031 16 3.84ms
29° 11.0% 5719 8 1.79ms
43° 11.0% 5563 0 1.02ms
45° 71.4% 5500 0 11.01ms

fourth

26° 100.0% 5188 0 12.29ms
22° 100.0% 4813 0 14.59ms
18° 100.0% 4750 1 18.43ms
11° 100.0% 4563 7 19.97ms
9° 100.0% 4781 18 20.99ms
5° 100.0% 4813 18 23.04ms
7° 100.0% 4906 18 22.27ms
7° 100.0% 5031 18 22.27ms

my guess is that third and fourth gears knock is accurate... but 1st and second... i don't know

let me know what you think

When you do a log only log TIMA, RPM, KNOCK, and TPS . Start at around 3,000 rpm in third gear and pull to 6,200 rpm. That's the only way to get an accurate log. Your "phantom knock" if thats what it is could also be cause by lifter tick. Log a third gear only pull and repost your readings.

Rex2342 said:

Lets not forget about our valves. Since they are a two piece design they will separate if pushed to far and that will ruin your day. I've heard no more than 24psi with stock valves. Also don't forget that at 18psi the 14b is at it's maximum efficiency rating and also craps out at around 6,000 RPM. My car sees 20-21psi daily with my 14b. I have ARP's (torqued to 95 Ft. lbs) installed and I'm using a felt AutoZone head gasket. Been holding up to more than it's share of abuse for nearly two years now setup like this.

Click to expand...

Stock valves can handle a lot more than you think. As long as you dont have cams you dont need to upgrade your valves. Ive seen people run 500+whp on stock valve train.

polishshark said:

does anyone here run with urethane engine mounts without balance shafts?

cause i get this (i think) phantom knock... with just regular driving i get a spike of 25-42 counts of knock and when i step on it i get about 42 in second... and about 27 in third..
could it be due to hard engine mounts?


let me try to post a log..

Click to expand...

I have no balance shafts and run poly mounts with no problem. How much boost are you running on this log? Also have you checked your knock sensor to make sure its torqed correctly and functional. When they start to go bad the stuff on the inside starts to ooze out. Its a sticky substance.

JayRolla said:

I have no balance shafts and run poly mounts with no problem. How much boost are you running on this log? Also have you checked your knock sensor to make sure its torqed correctly and functional. When they start to go bad the stuff on the inside starts to ooze out. Its a sticky substance.

Click to expand...

The knock sensor is new. I don't know if it's torqued corectly(didn't have torque wrench at the time) I turned it as hard as I could with my hand and then 1/2 turn. What should it be torqued to? I'm running 20-23 in third.

thx

Ok so your running 20-23psi with stock injectors. Looking at your log that may be real knock after reading your mod list. You need to run 11-13psi max untill you get some fuel upgrades.

I'm running 12 psi on stock motor with good compession and a walbro 255 pump. Car pulls like a champ for 12 psi and chirps the tires out of the hole.

JayRolla said:

Ok so your running 20-23psi with stock injectors.

Click to expand...

Good job Jay.

A friend of mine has a GVR4 he ran 11.59 at 119mph with 31psi race fuel and complete stock internals including stock head, head gasket studs and block he was 475whp wtih a 60-1

Thank you so much Oldman, I never thought I get rep points after the system change.

JayRolla said:

Thank you so much Oldman, I never thought I get rep points after the system change.

Click to expand...

guys stick to the topic.. PMs are for this....

James Bondage said:

I'm running 12 psi on stock motor with good compession and a walbro 255 pump. Car pulls like a champ for 12 psi and chirps the tires out of the hole.

Click to expand...

so this is the most your car can do before it blowes...?