Compressor Inducer Limits - Various racing events...

[bastarddsm]

Hey guys,

Any of you know what IFO is looking at for the compressor inducer limit. They are going to a 63.5mm limit for FIS next year. Are they wanting the OD of the wheel or the ID of the housing? In the past they never looked at anything at all, but I'm doing some custom work on my VNT turbo and I don't want to make it illegal.

Also any other racing series that has a class that dsm fit in feel free to discuss what they are doing. I suspect WCF is the only other event that there is a strict inducer limit held.

 

[familyMAN]

Where did you see 63.5? This is from the IFO FIS forum

"POWER ADDERS
Turbochargers (62.9 mm single turbo limit for 1.8L and above vehicles on slicks, 62.9 mm single turbo limit for ALL auto vehicles, 67.9 mm single turbo limit for 1.6L motors, 64.9mm turbo limit for A/RWD vehicles on DOT tires, 67.9mm turbo limit for FWD vehicles on DOT tires, 47.9mm limit for twin turbo setups except 3.8L 6 cyl motors limited to stock twins (May be modified), superchargers, and Nitrous Oxide Systems allowed. Vehicles limited to one out of manufacturer power adder type. Air to water intercoolers prohibited. Turbo measured at inducer. (*updated 12/18/15)"

If I am interpreting correctly...62.9mm limit for an auto dsm (fwd or awd) and 64.9mm limit for an awd manual

 

[bastarddsm]

I think they changed it again. I remember in like September it was changed to 63.5. There was a huge Facebook bitchfest about it

 

[spoolin ddub]

Where did you see 63.5? This is from the IFO FIS forum

"POWER ADDERS
Turbochargers (62.9 mm single turbo limit for 1.8L and above vehicles on slicks, 62.9 mm single turbo limit for ALL auto vehicles, 67.9 mm single turbo limit for 1.6L motors, 64.9mm turbo limit for A/RWD vehicles on DOT tires, 67.9mm turbo limit for FWD vehicles on DOT tires, 47.9mm limit for twin turbo setups except 3.8L 6 cyl motors limited to stock twins (May be modified), superchargers, and Nitrous Oxide Systems allowed. Vehicles limited to one out of manufacturer power adder type. Air to water intercoolers prohibited. Turbo measured at inducer. (*updated 12/18/15)"

If I am interpreting correctly...62.9mm limit for an auto dsm (fwd or awd) and 64.9mm limit for an awd manual

this is correct. any auto dsm and any dsm on a slick 62.9 limit and a awd manual dsm on a DOT tire is 64.9 limit



http://forums.thefoat.com/ImportFaceOff/sg-forums.thread/th-1352/FORCED INDUCTION SPORT presented by Deatsch Werks/

 

[familyMAN]

Too bad auto can't get 64mm also!

 

[Archer Fabrications]

6466 looks like itll be popular fornthe awd manual

 

[bastarddsm]

Last year the fast cars had 67s on them. I qualified #3 with my junkyard 60mm and eBay intercooler.... Not that much advantage to them big huffers

 

[donniekak]

Last year the fast cars had 67s on them. I qualified #3 with my junkyard 60mm and eBay intercooler.... Not that much advantage to them big huffers

A lot of it depends what part of the country you live in. Some regions have 11's winning fis, and 10's winning pro, while other areas are low-Mid 8's for pro, and low 9's for sport.