Procharger no cowl hood question

[ProStang01]

I'm running a procharger with a cowl hood and the design of the blower has the air filter right in front of the firewall. I had the car at the 1/4 track a few weeks ago and couldn't run faster then 14.20 @ 97 mph. 1st gear pulled hard, 2nd gear pulled hard, then 3rd was just loud but not a lot of power behind it.

Just wondering could this be a lack of air, or it's just getting hot air... Any suggetions appreciated. Also I have not had this dyno'd yet.

Thanks

 

[19COBRA93]

I'm running a procharger with a cowl hood and the design of the blower has the air filter right in front of the firewall. I had the car at the 1/4 track a few weeks ago and couldn't run faster then 14.20 @ 197 mph. 1st gear pulled hard, 2nd gear pulled hard, then 3rd was just loud but not a lot of power behind it.

Just wondering could this be a lack of air, or it's just getting hot air... Any suggetions appreciated. Also I have not had this dyno'd yet.

Thanks

Well with that MPH, you should go low 7's. I'd work on traction.

Sounds like heat soak to me. It's likely less about where the air is coming from, and more about getting good air through your intercooler. I'm having a similar issue. The HO intercooler really heat soaks. I'd look into upgrading your intercooler to a larger unit.

 

[ProStang01]

Ha! I wish 197mph. I was told from Procharger I do have the upgraded stage II larger intercooler...
And yes even @ 97mph it's hard to hook.

 

[19COBRA93]

In that case you've got something else going on. 14.2@97 is what near stock s197's run here in Utah at high altitudes.

 

[TexasBlownV8]

Exactly. What 60' time did you cut? What tires? How was your traction?

Personally, I would think pulling air from above the exhaust isn't very smart in general. But, that is indeed how the procharger is set up.

 

[19COBRA93]

I would think pulling air from above the exhaust isn't very smart in general.

I agree with this as well and wish it were designed different, but there are numerous Procharger cars here making killer numbers, and backing them up at the track. So there's another issue here we're not seeing.

 

[ProStang01]

If I remember corretly 60' was 2.15. 255/45/18"s on back. Ran total 5 runs, pretty much spun all runs but this was the best that night.

 

[SeVeReDiStOrTiOn]

Sounds like a tranny issue to me..you on the stock clutch?

 

[ProStang01]

Honestly I'm not sure about the trans work or rearend work. What has been done to it, if anything.

 

[TexasBlownV8]

Well if you're spinning your times are not going to be good.

 

[ProStang01]

Correct but my 14.20 run hooked somewhat. I feel like once I get in 3rd there's not much behind it. I'm going to try to get it by the tune shop and have it dyno'd in the next couple weeks. Procharger gave me some numbers it should pull so I'll know if I have major issues (bad blower) or not.

 

[MOC826]

I'm running a procharger with a cowl hood and the design of the blower has the air filter right in front of the firewall. I had the car at the 1/4 track a few weeks ago and couldn't run faster then 14.20 @ 97 mph. 1st gear pulled hard, 2nd gear pulled hard, then 3rd was just loud but not a lot of power behind it.

Just wondering could this be a lack of air, or it's just getting hot air... Any suggetions appreciated. Also I have not had this dyno'd yet.

Thanks

if your running the tune given from procharger then your leaving a lot on the table. i know my friends stock procharger tune, my stock car kept up with his fairly easy.. id get a good tune and try again

 

[Tre06GTP1SC]

You got something going on. I was running 12.20's here in El Paso with a DA of 7000. If Manual trans maybe a clutch slipping/ gone out issue?

 

[Swarzkopf]

Well if you're spinning your times are not going to be good.

Spinning will not impact your trap speed like that. If he was making the power he should, and had an AWFUL (let's say, 2.8) 60', his trap speed would still be in the right ball park even though his ET would be awful.

I'd imagine something isn't installed correctly- maybe a big boost leak, or spark blow out, or a major tune issue- but the car clearly isn't making anywhere near the power it should.

OP, do you have a boost gauge?

 

[Weou09]

Damn this is like the 3-4th thread I have seen of a FI car running like shit at the track and significantly slower than my mild bolt on NA car...really reconsidering the FI route.

 

[Torched S197]

Sounds like something with spark maybe detonation. That's how my car did on nitrous til colder plugs. When you get a chance pull the plugs and see what they are

 

[irishpwr46]

I'm running a procharger with a cowl hood and the design of the blower has the air filter right in front of the firewall. I had the car at the 1/4 track a few weeks ago and couldn't run faster then 14.20 @ 97 mph. 1st gear pulled hard, 2nd gear pulled hard, then 3rd was just loud but not a lot of power behind it.

Just wondering could this be a lack of air, or it's just getting hot air... Any suggetions appreciated. Also I have not had this dyno'd yet.

Thanks

correct me if im wrong, but isnt this the classic definiton of clutch slip?

 

[Swarzkopf]

Damn this is like the 3-4th thread I have seen of a FI car running like shit at the track and significantly slower than my mild bolt on NA car...really reconsidering the FI route.

Since we're adding complexity with forced induction, there's always a bit more "growing pain" when dialing the combination in compared to a mild, bolt-on N/A build. Definitely worth it to me though...if nothing else for the fact that I didn't need to install gears or headers to run decent times. I absolutely hate those installations. LOL

 

[ProStang01]

Thanks for all the responses. Swar I do not have a boost gauge installed right now so not sure what boost I am making. I will have my tuner check it out and hopefully won't cost an arm and a leg.

I will let yall know what I find out.

Thanks again.

 

[Marc s]

I would say it's tune related. Your probably pulling timing at very low IAT's, you might have a boost leak, and super fat A/F. I would get it on a dyno ASAP. I can garrantee you that the placement of the air inlet is not the cause.