My new 95 Cobra

klu408 · 01-04-2010, 12:17 AM

Hey guys I'm back..... But need advice
I just bought a 95 cobra and it has the following parts.

DSS 306 with forged ft
Twisted wedge Heads
Trick flow stage 1 cam
70mm BBK tb
Pro M mass air with 24 lb. injectors
Cobra upper and lower
BBK equal length headers and off road x pipe with bassani catback
3.73 gears
And a TKO 600

The car made 287hp and 335 ft lb But it started falling off around 5000 rpms.
Do these numbers sound about right for this combo or is something off?? And we made the most power on the stock timing table?? Add timing and it would lose power?? Air fuels were 12.5 across the entire pull. I will post some pics tomorrow....

swammi · 01-04-2010, 05:08 AM

has it had the computer tuned? if not thats the problem. a friend of mine had a red 95 cobra, and it made around that. then he went back and had it tuned and it made a little over 320rwhp!

Dale McPeters · 01-04-2010, 06:59 AM

Needs 30lb/hr injectors with matching mass air along with a tune for the computer. (room to grow)
The 24's will work but are not optimal if you are going to turn a lot of rpm as the duty cycle goes up....
Maybe a better cam? I do not know what the specs are on the TFS-1..........

See my post on the corral in your thread concerning the rwhp that the 306 made that was in the '93 cobra. Or here on this forum > http://www.streetstangs.net/showthre...t=13385&page=3 < post number 30.

SlowJoe · 01-04-2010, 07:42 AM

The falling off could be the cam. 12.5 a/f is rich for my taste on a n/a motor. It does need a tune.

klu408 · 01-04-2010, 08:01 AM

Well the Bad news is, That was with a tune!!! We started at 248hp. 12.5 was where it made the most hp, and the a/f was straight as an arrow.

SlowJoe · 01-04-2010, 08:19 AM

I would say cam and intake. I never had mine on the dyno but i can pick up 2 tenths going from 12.5 to 13 a/f. What was intake air temp?

QWKSNKE · 01-04-2010, 08:33 AM

it is the intake.
?That is really good torque for a 302-306

Dale McPeters · 01-04-2010, 09:33 AM

Quote:

Originally Posted by klu408

Well the Bad news is, That was with a tune!!! We started at 248hp. 12.5 was where it made the most hp, and the a/f was straight as an arrow.

Well something is definitely not right if it was falling of at 5000 rpm. The cobra intake that was on the 306 that was in Lee's old cobra did not fall off like that....of course we did a little more work to it on the flow bench too so that helped.

What fuel pump are you using? Are the springs matched to the cam? What are the cam specs on the TFS-1? Has the upper & lower intake been ported? If so was it done correctly? Meaning it was not just hogged out so that it killed the port velocity?

Was this on a load bearing dyno (mustang dyno)? If so was the dyno setup properly for a mustang?

And last but not least who did the tuning on the car?

QWKSNKE · 01-04-2010, 10:35 AM

Dale,
Remember that the sn95 cobra intake does not flow as well as the fox cobra intake.

Kelly,
Can you post up the graph

SlowJoe · 01-04-2010, 10:42 AM

Quote:

Originally Posted by QWKSNKE

Dale, Remember that the sn95 cobra intake does not flow as well as the fox cobra intake. Kelly, Can you post up the graph

thats what i was thinking to

01-04-2010, 12:17 AM	#1
klu408 Senior Member Join Date: May 2008 Location: Sand Mountian Posts: 180	My new 95 Cobra Hey guys I'm back..... But need advice I just bought a 95 cobra and it has the following parts. DSS 306 with forged ft Twisted wedge Heads Trick flow stage 1 cam 70mm BBK tb Pro M mass air with 24 lb. injectors Cobra upper and lower BBK equal length headers and off road x pipe with bassani catback 3.73 gears And a TKO 600 The car made 287hp and 335 ft lb But it started falling off around 5000 rpms. Do these numbers sound about right for this combo or is something off?? And we made the most power on the stock timing table?? Add timing and it would lose power?? Air fuels were 12.5 across the entire pull. I will post some pics tomorrow.... __________________ Last edited by klu408; 01-04-2010 at 12:19 AM.

01-04-2010, 05:08 AM	#2
swammi magnaflow lover Join Date: Nov 2009 Location: pisgah al Posts: 150	has it had the computer tuned? if not thats the problem. a friend of mine had a red 95 cobra, and it made around that. then he went back and had it tuned and it made a little over 320rwhp! __________________ 97 f150 lariat excab tow rig 93 mustang gt under construction

01-04-2010, 06:59 AM	#3
Dale McPeters 5.0 Block/Walnut Cracker Join Date: May 2005 Location: Working.... Posts: 2,409	Needs 30lb/hr injectors with matching mass air along with a tune for the computer. (room to grow) The 24's will work but are not optimal if you are going to turn a lot of rpm as the duty cycle goes up.... Maybe a better cam? I do not know what the specs are on the TFS-1.......... See my post on the corral in your thread concerning the rwhp that the 306 made that was in the '93 cobra. Or here on this forum > http://www.streetstangs.net/showthre...t=13385&page=3 < post number 30. __________________ '14 Dodge Challenger SRT8 392 6-speed Last edited by Dale McPeters; 01-04-2010 at 07:09 AM.

01-04-2010, 07:42 AM	#4
SlowJoe Mind Blowing Join Date: Jun 2006 Location: Dawsonville Ga Posts: 3,913	The falling off could be the cam. 12.5 a/f is rich for my taste on a n/a motor. It does need a tune. __________________ Slow Joe Racing 2008 dodge ram 5.7 HEMI 1993 lx with a 289 and a 3 speed on the floor WTB 1955 t-bird project

01-04-2010, 08:01 AM	#5
klu408 Senior Member Join Date: May 2008 Location: Sand Mountian Posts: 180	Well the Bad news is, That was with a tune!!! We started at 248hp. 12.5 was where it made the most hp, and the a/f was straight as an arrow. __________________

01-04-2010, 08:19 AM	#6
SlowJoe Mind Blowing Join Date: Jun 2006 Location: Dawsonville Ga Posts: 3,913	I would say cam and intake. I never had mine on the dyno but i can pick up 2 tenths going from 12.5 to 13 a/f. What was intake air temp? __________________ Slow Joe Racing 2008 dodge ram 5.7 HEMI 1993 lx with a 289 and a 3 speed on the floor WTB 1955 t-bird project

01-04-2010, 08:33 AM	#7
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	it is the intake. ?That is really good torque for a 302-306 __________________ 2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy

01-04-2010, 10:35 AM	#9
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Dale, Remember that the sn95 cobra intake does not flow as well as the fox cobra intake. Kelly, Can you post up the graph __________________ 2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy