frpp intake on...

[3vs197]

well just installed the frpp intake tonight and what a difference. i don't really think i lost anything down low. now, some helpful info. car previously made 330whp and it peaked at 6300 or so rpm and then dropped off but not much. still made over 300whp at 6700 or so. you could certainly feel the powerband drop off after 6500 or so. now it just keeps PULLING till my (now) 6950 limiter. first pull after the manifold i hit the limiter cause it didn't loose power after 6500 at all.

im still on stock valve springs so now the next step is comp springs and rev limiter at 7200 or so. the powerband just moved about 800rpms up and i dont have the hardware to support it right now.

as far as tuning went, no changes were made. richest spot was 12.8 to 1 and leanest spot was 13.1 to 1 which is pretty much where i had it before. although maf counts at the limiter were still climbing, as was VE, and calculated load, which the car never did before.

also installed prothane mounts and what a difference! didn't really notice any vibration at all. car shifts even better now, highly recommend to anyone. easy to install as well.

going to the dyno soon.

 

[RedFire07GT]

Nice to hear ur happy with ur intake manifold, I just had one put on over the week. Waiting to see how it did with the heads/cams.



Brandon.

Sent from my Droid using Tapatalk

 

[3vs197]

it just sucks right now cause it begs to be revved but i have to wait for my springs, then its 7200.

 

[JeremyH]

I wouldnt do that. Keep it under 7k rpms on the stock crank!

Also where you are revvin on the stock valvetrain you will more than likely float a valve, which means you will be getting new stuff sooner than you think. Which isnt necessarily a bad thing lol

Love the prothane motor mounts as well.


What cams you thinking about going with?

 

[swat 79]

Good to see that someone is having some luck with the intake, what numbers are you hoping for on the dyno?

 

[702GT]

I'd worry more about the bottom end at 7k than my springs, not that it doesn't need attention either. That intake is amazing! I can't wait to put a centri to it

 

[Blxcklist]

Cool man. I love my frpp intake, pulls so hard up top with my cams

 

[3vs197]

well i think that anyone who dyno's with this intake and stops at anything less than 6800 is wasting their time. i have the nsr stage 2's and plan on keeping those for a while. maybe 127500's later, but my cams still make power way up top. and i have been told that the stock crank should be fine for 7200. real street? cars use cast cranks and they rev to 8600. not saying they are "stock cast cranks" but still cast. i would feel comfortable with springs and the stock bottom end @7200, at least for a summer or two.

swat79, hoping for 340-345. i know the powerband moved up but hard to tell how much i gained. sometime in april i will hit the dyno and let you guys know.

 

[gil_t2]

The Crank, Cast or forged isn't the problem. It is the stock rod bolts. They WILL break. At least get a set of ARP rod bolts.

 

[KillrStang]

Could u post a pic of the dyno? id like to see the power band

 

[Grabber]

Congrats bro.

I am sure if it doesn't reflect on the Dyno, you will surely see the gains at the track.

Hope you enjoy it bro!

Are you by chance going to the dyno day in Waukegan on like April 12? Forgot the name of the shop.

45 bucks, 2 runs, A/F included. PM me if you are interested in going man.

 

[Chilliwack 42]

The Crank, Cast or forged isn't the problem. It is the stock rod bolts. They WILL break. At least get a set of ARP rod bolts.

There are limitations with the stock crank at that RPM. The harmonics can cause the oil pump gears to break. Also ARP rod bolts wont stop the rod from snapping. From what I have read if you upgrade the pump gears, prep the stock crank right and change your valve springs you can make it above 7,000 without having to replace the whole rotating assembly.

 

[RedFire07GT]

well i think that anyone who dyno's with this intake and stops at anything less than 6800 is wasting their time. i have the nsr stage 2's and plan on keeping those for a while. maybe 127500's later, but my cams still make power way up top. and i have been told that the stock crank should be fine for 7200. real street? cars use cast cranks and they rev to 8600. not saying they are "stock cast cranks" but still cast. i would feel comfortable with springs and the stock bottom end @7200, at least for a summer or two.

swat79, hoping for 340-345. i know the powerband moved up but hard to tell how much i gained. sometime in april i will hit the dyno and let you guys know.

I run the 127500s with Livernois Stage2 Heads, JJ at Woodbine Motorsports just threw a FRPP manifold on my car during the week, he told me they will throw it on the dyno next week, i also added a L&M62mm TB and 110mm CAI. He also raised the RPMs to 7,000. So Ill come back to you and let you know how i do with those cams.

Go grab some new ETs now! Congrats.

 

[3vs197]

well fuck it, ill get springs and set the limiter @7100 and shift at 7000, that should be sufficient.

 

[JeremyH]

Yeah, our stock cranks while very strong, lack counterbalances like forged cranks. Harmonics/wobble from excessive rpm can result when you ovespin it. 7k seems to be the consensus on the safe limit. I run the the stock crank polished and balanced with manley rods and diamond pistons with arp mains. My rev limiter is at 7k at I shift at 6900 at the track.

Could you get away with 7200, maybe... but I definetly wouldnt risk it!

 

[Fast64ranchero]

you'll like the FRPP 3V, I like mine, adding the intake and 3" cat backs, I picked up 33rwhp, with no loss of bottom end, dyno sheet is on here somewhere...

 

[jeffie on juice]

For the money the FRPP Manifold isn't worth it in my book a couple hp, maybe for FI cars. i would suggest save your money for something worth wilded.

 

[RedFire07GT]

I think its worth it if your going for big NA numbers. Especialy if you have heads&cams.

It would deff. Work great on a centri FI vehicle too!

For the money the FRPP Manifold isn't worth it in my book a couple hp, maybe for FI cars. i would suggest save your money for something worth wilded.

Sent from my Droid using Tapatalk

 

[3vs197]

i think it was worth it. people are just afraid to spin the motor out far enough to make it show gains. plus it looks good lol. and i have a set of delete plates for sale now!

 

[3vs197]

ok so after analyzing all my data here is what i came up with. i use hptuners and did several data logs. ill stick to some key parameters.

1. aboslute load (%)
2. Maf (lb/min)
3. Rpm

Pre intake, my highest recorded maf count was 37lb/min. and this came in at right about 6300-6400 rpm. highest load was 104%. and surely enough, guess where my peak power was on the dyno? you guessed it, 6400 rpm's.

Post intake, my highest recorded maf count was 39lb/min, this came in about 6800 but still climbing a bit so my best guess is it will peak about 6900. highest load was 108% in similar air to the pre intake run.

so based on all this, the peak power moved up 500 rpms and i bet i will see somewhere between 10-15whp from this mod.

this is on nsr stage 2's btw.

now i will get springs and rev it to 7, which will be PERFECT for my combo. peaking about 6800-6900 and shifting at 7.