98 Cobra with a Paxton Novi2000

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98 Cobra with a Paxton Novi2000

Unread postby Novi347 » Thu Aug 25, 2016 11:06 pm

My brother has a 98 Cobra with a Paxton Novi2000 pushing 10lbs of boost (meth injected). This thing has been a nightmare. Its been in an out of the shop for almost a year. It went in for a chip tune. First issue was fuel dropping pressure in the upper RPM. The engine tuner ended up sending my brother him home with an incomplete tune since he had fuel issues. Tried to go the with a standard 255 intank replacement, but that didn't work. The 98's have a completely different intank setup. In short found out the Aviator pumps are direct replacements and can flow more than the 255's. After finally getting that in, the car developed a stumble. Changing the spark plug wires and coils fixed that.
Here's the question....what type of realistic RWHP should he expect?

Thanks,
Rich
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Novi347
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Posts: 118
Joined: Tue Dec 24, 2013 10:48 am
Location: Gilbert, AZ
Name: Rich
Vehicle Information: 90GT (original owner- MM&FF's 7/13 readers rides)
CHP 349 Stroked (9.5 to 1 Comp)
R302 Block
Paxton Novi2000 (17lbs at 5800RPM)
Twisted Wedge Heads (Ported by Ben Alameda Racing)
Cobra Intake (Ported by Ben Alameda Racing)
Flowtech Long tubes
H-pipe w/ 23yr old Flowmaster 2 Chamber Mufflers!
Siemen Deka 80lb Injectors
Comp Cam grind #35-775-8
PMAS MH95
C4 Trans
3.55 gears
Snow Meth Stage 2 Kit
BE/TwEECer RT/Innovate
A9L2
Vehicle 2 Information: 92 SSP Coupe
Stock Block 302 (175k miles)
GT40 Heads (3 Bar)
TFS Street Heat Intake
E303 Cam
Long tubes
Nitrous Express Proton Kit (175 shot)
Tremec TKO
Pro M meter
24lb injectors
3.73 gears
A9L

Re: 98 Cobra with a Paxton Novi2000

Unread postby decipha » Fri Aug 26, 2016 12:12 pm

around 400rwhp

best bet would be to do a full custom online/remote tune, make sure you get all the bugs worked out first

http://efidynotuning.com/remote.htm
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decipha
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Joined: Mon Jul 15, 2013 5:29 pm
Location: New Orleans, LA
Name: Michael Ponthieux
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce

Re: 98 Cobra with a Paxton Novi2000

Unread postby Novi347 » Fri Aug 26, 2016 5:07 pm

Yup, it made a little over 400rwhp. The car does get lean at 6500 rpm (12:1 w/ meth) . You've helped me out so much with my tune, I should have sent him your way :/ He's spent well almost $2k to get it running. Brother is a bit stubborn lol. With that said, we left the shop today with what I think is very conservative (total timing is 11 deg w/ 10lbs of boost). It now idles great, but does have an intermittent stumble at around 3000 rpm. Tuner thinks its the IMRC.
User avatar
Novi347
Power Poster
 
Posts: 118
Joined: Tue Dec 24, 2013 10:48 am
Location: Gilbert, AZ
Name: Rich
Vehicle Information: 90GT (original owner- MM&FF's 7/13 readers rides)
CHP 349 Stroked (9.5 to 1 Comp)
R302 Block
Paxton Novi2000 (17lbs at 5800RPM)
Twisted Wedge Heads (Ported by Ben Alameda Racing)
Cobra Intake (Ported by Ben Alameda Racing)
Flowtech Long tubes
H-pipe w/ 23yr old Flowmaster 2 Chamber Mufflers!
Siemen Deka 80lb Injectors
Comp Cam grind #35-775-8
PMAS MH95
C4 Trans
3.55 gears
Snow Meth Stage 2 Kit
BE/TwEECer RT/Innovate
A9L2
Vehicle 2 Information: 92 SSP Coupe
Stock Block 302 (175k miles)
GT40 Heads (3 Bar)
TFS Street Heat Intake
E303 Cam
Long tubes
Nitrous Express Proton Kit (175 shot)
Tremec TKO
Pro M meter
24lb injectors
3.73 gears
A9L

Re: 98 Cobra with a Paxton Novi2000

Unread postby decipha » Fri Aug 26, 2016 8:21 pm

damn only 11 with meth too? yikes, i would have shot no less than 16 to her
User avatar
decipha
Tooner
 
Posts: 15787
Joined: Mon Jul 15, 2013 5:29 pm
Location: New Orleans, LA
Name: Michael Ponthieux
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce

Re: 98 Cobra with a Paxton Novi2000

Unread postby Novi347 » Fri Aug 26, 2016 10:45 pm

That's exactly what what I was thinking.
Last time I put my car to his dyno he was amazed at how I was able command af ratio without messing with the maf x ratio....The way you taught me ;)
User avatar
Novi347
Power Poster
 
Posts: 118
Joined: Tue Dec 24, 2013 10:48 am
Location: Gilbert, AZ
Name: Rich
Vehicle Information: 90GT (original owner- MM&FF's 7/13 readers rides)
CHP 349 Stroked (9.5 to 1 Comp)
R302 Block
Paxton Novi2000 (17lbs at 5800RPM)
Twisted Wedge Heads (Ported by Ben Alameda Racing)
Cobra Intake (Ported by Ben Alameda Racing)
Flowtech Long tubes
H-pipe w/ 23yr old Flowmaster 2 Chamber Mufflers!
Siemen Deka 80lb Injectors
Comp Cam grind #35-775-8
PMAS MH95
C4 Trans
3.55 gears
Snow Meth Stage 2 Kit
BE/TwEECer RT/Innovate
A9L2
Vehicle 2 Information: 92 SSP Coupe
Stock Block 302 (175k miles)
GT40 Heads (3 Bar)
TFS Street Heat Intake
E303 Cam
Long tubes
Nitrous Express Proton Kit (175 shot)
Tremec TKO
Pro M meter
24lb injectors
3.73 gears
A9L

Re: 98 Cobra with a Paxton Novi2000

Unread postby decipha » Sun Aug 28, 2016 3:51 am

now thats scary, u might wanna school him
User avatar
decipha
Tooner
 
Posts: 15787
Joined: Mon Jul 15, 2013 5:29 pm
Location: New Orleans, LA
Name: Michael Ponthieux
Vehicle Information: Supercoupin' x10
90 (4x 5spds) - Dante, Ruby, Daja, Ava
91 4r70w - Skarlett
92 (2x) 5spd & auto - Bianqa, Andrea
93 auto - Danika
94 5spd Rionda
95 auto Aisha
Vehicle 2 Information: Others:
00 Lincoln LS - Luanda
98 Camaro SS - Bounquisha
02 Harley F-150 - Sasasha
03 Marauder - DyShyKy
00 Explorer 5L - Bernyce


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