E85 update with new jmf race intake manifold

500orbust · 07-20-2008, 02:39 PM

Hey guys, I finally got a chance to put the car on the dyno with my new jmf race version intake manifold. The only things I have changed are alternator, spark plugs, intake manifold, and I'm currently running open downpipe....Im in the middle of making a full exhaust.

With a stock longblock - balance shafts eliminated, stock ignition, 61 ptrim, dnp twinscroll t4 exhaust manifold, and jmf race intake manifold, I went from 510 whp to 560whp. Boost was set to 32 psi....I will have dyno sheets up soon.

turboglenn · 07-20-2008, 03:19 PM

VEry nice numbers! I can't wait to see the actual curve!

1fastlaser · 07-20-2008, 05:04 PM

very nice numbers. Thats a nice jump in power i must say

500orbust · 07-20-2008, 05:52 PM

Quote:

Originally Posted by turboglenn

VEry nice numbers! I can't wait to see the actual curve!

Thanks. Peak torque is about 5600 rpm and power starts to fall off after 7500 rpm. I had to delay the spool up due to a 14 psi wastegate spring, and I believe the small .70ar exhaust housing is limiting power in the upper rpm range.

archie

2gAWDTalon · 07-20-2008, 08:10 PM

What manifold was on the car with the 510 dyno?

500orbust · 07-20-2008, 10:39 PM

Quote:

Originally Posted by 2gAWDTalon

What manifold was on the car with the 510 dyno?

SBR intake manifold

asd_gst · 07-20-2008, 10:48 PM

a nice 50 hp gain

, cant wait till i can start doing mods to my car.

JayRolla · 07-21-2008, 08:43 AM

Wow that is a very amazing power difference. You see a lot of guys gaining only 10-15hp from stock mani's to SMIM. I think the open downpipe opened up a little airflow also. So how much more power are you making up top 7000-9000rpm range.

500orbust · 07-21-2008, 10:38 AM

Quote:

Originally Posted by JayRolla

Wow that is a very amazing power difference. You see a lot of guys gaining only 10-15hp from stock mani's to SMIM. I think the open downpipe opened up a little airflow also. So how much more power are you making up top 7000-9000rpm range.

I was also very surprised to see the hefty gain over the SBR intake manifold, but the JMF piece is so much nicer in every way. I tried to keep my setup and tune(timing map)the same with both manifolds. I'm running 11.8 to 12.0 afrs and I let off after 7600rpm because the power just starts dropping.

500orbust · 07-21-2008, 10:56 AM

Dyno sheet before and after. The pink line is boost

GSX · 07-21-2008, 01:51 PM

Quote:

Originally Posted by 500orbust

Hey guys, I finally got a chance to put the car on the dyno with my new jmf race version intake manifold. The only things I have changed are alternator, spark plugs, intake manifold, and I'm currently running open downpipe....Im in the middle of making a full exhaust.

With a stock longblock - balance shafts eliminated, stock ignition, 61 ptrim, dnp twinscroll t4 exhaust manifold, and jmf race intake manifold, I went from 510 whp to 560whp. Boost was set to 32 psi....I will have dyno sheets up soon.

I'm in Tucson (east side) too, and running e85 with my AGP HP61. My numbers are 503/438 although I did not do the tuning. I would love to check your car out and what not so maybe we can meet up or head out to the track.

v8s_are_slow · 08-17-2008, 09:24 PM

Mind if I ask when you'll be updating your mod list on your profile?

500orbust · 08-18-2008, 02:05 PM

It is updated. Still stock block, headstuds, head gasket, etc. Went to the track a few weeks ago and ended up with a 11.6 @132. 1.9 60ft, 99 mph at 1/8 mile. Also ran a 11.6 at 123 with 104mph in the 1/8, but missed 4th gear.

archie

wancsta · 08-18-2008, 02:19 PM

holy crap 560 whp on the stock block

if I'm not mistaken that might be a new record 4g63 FTMFW

what kind of dyno was this on?

v8s_are_slow · 08-18-2008, 05:45 PM

Quote:

Originally Posted by 500orbust

It is updated.

Oh, I didn't think it was since you had a SBR SMIM in the mod list

500orbust · 08-18-2008, 06:09 PM

I actually switched over to a jmfab race manifold and retuned. went from 513 to 560....this is on a mustang awd dyno. Stock c5 corvette zo6's dyno 280 whp on it.

wancsta · 08-18-2008, 06:23 PM

stock cams too?

ILLiCliPSE · 08-19-2008, 12:31 AM

stock 7 bolt?

500orbust · 08-19-2008, 10:40 AM

Its a 6 bolt with dks 272's and a balance shaft elimination kit, no porting on the head and a bored out stock throttle body. It also has stock headstuds and stock composite head gasket. I will retire this longblock before it grenades and go with a 10:1 compression 2.0 with a fully ported race head. There is a lot more I'm going to do as well, so it will be a while before its finished.

archie

slipstream808 · 08-19-2008, 07:30 PM

Congrats on the great numbers on the stock block!!

Car Cannibal · 08-19-2008, 09:20 PM

Very nice and 560awhp on a Mustang could be around 616 on a Dynojet since Mustangs are around 10% lower.

What AF/R did you tune too with the E85?
What timing?

You should consider a studder box to help with your 60ft time, or are you doing it in the AEM?
You can definitely get this car into the high 10's when you get that 60ft lower.

500orbust · 08-20-2008, 03:06 PM

The 60' sucks because the track was not prepped and it was spinning, then it would bog in second gear. I was out there to get a decent trapspeed since the tranny needs rebuilding. Im leaving the line at 6000 rpm and about 8 psi.

My afr's are in the mid 11's to low 12's as I get higher in the rpm band.
Timing is 21 degrees on the top.