88mm or F1 in 275
06-24-2011, 01:46 AM
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88mm or F1 in 275 Im thinking about running a local 275radial class which all max out at 88mm turbo or larger with a reducer, or a f1 procharger. They did not specify which f1, im assuming f1a. which one would i be able to make the most power with? or 91-100mm with a ruducer? at 3300 #
06-24-2011, 09:33 PM
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i looked at the pro mod billet turbos they are rated at 1600+ hp, whats the max hp on a f1 with another pulley? are would it be worth the money to go with a larger turbo with a reducer on it?
06-24-2011, 11:06 PM
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maybe i should have included that, i already have a hke all forged 402 built for boost 8.5.1cr im almost finished with this project but before i pull the trigger to buy my turbo i dont want to wish i should have bought a f1 instead. I guess the 88 is the way to go since no procharger guys or sellers have posted to say they there f1 system can make more power!!!!!
06-25-2011, 01:42 AM
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If your talking about Tex275 you can run an F1-R which is a badass blower.. they can make 1400+ on the right motor.
I would look into the PTE X275 turbo, PTE Promod 88, BW S500SX4-88..etc if you have the motor to support the power they can make. I think in that class the turbo will have the advantage. You could always buy a bigger turbo and reduce it as well.. but any of those above turbos would make more than enough power to be competitive.. that PTE X275 turbo is a monster.
Your biggest thing IMO to get figured out will be power management. Make sure you have good wastegate(s) placement and a good boost controller as well as the chassis right..etc... It ain't about how much power you can make, its about how much you can control to get down the track consistently.
You will need to be able to run 5.30's, maybe faster to be competitive in that class.
I would look into the PTE X275 turbo, PTE Promod 88, BW S500SX4-88..etc if you have the motor to support the power they can make. I think in that class the turbo will have the advantage. You could always buy a bigger turbo and reduce it as well.. but any of those above turbos would make more than enough power to be competitive.. that PTE X275 turbo is a monster.
Your biggest thing IMO to get figured out will be power management. Make sure you have good wastegate(s) placement and a good boost controller as well as the chassis right..etc... It ain't about how much power you can make, its about how much you can control to get down the track consistently.
You will need to be able to run 5.30's, maybe faster to be competitive in that class.
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06-25-2011, 07:15 AM
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if you are 1/8th mile racing then I would go with the f1r if it is 1/4 mile then go with turbo
A turbo can run badass in the 1/8th but lots and lots of testing to get the thing to 60 without blowing the tires off
A turbo can run badass in the 1/8th but lots and lots of testing to get the thing to 60 without blowing the tires off
06-25-2011, 02:06 PM
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We've put together a few x275 setups all using PTE's x275 turbo. That turbo makes a boatload of power. That is the number one choice followed by a Pro Mod 88. Keeping the motor under 400" helps as well.
06-25-2011, 02:59 PM
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Dont be scared of the engine's over 400ci eigther. While a 350-380ci engine is my first choice, the 400ci and larger engine's work very well with the X275 88mm. You just have to tailor the turbo to the engine.
My new Shop car is going together (slowly). 440ci, Small'ish headers, Smaller than typical Corssover, and a little more than typical compression... Turbo sizes will vary from 88mm-118mm.
My new Shop car is going together (slowly). 440ci, Small'ish headers, Smaller than typical Corssover, and a little more than typical compression... Turbo sizes will vary from 88mm-118mm.
06-25-2011, 11:00 PM
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118mm in Outlaw DR
98mm in Bounty
88mm In Wild Street and X275
As far as competition, BBC's with Dope, SBC's with F1's, SBF's with 88mm and 98mm, and everything in bettween.
My car is long term. Not alot of time to work on it. I will probably buy a Turn Key NA car to beat on for stress relief.
06-26-2011, 01:12 AM
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I want to step up to a 370" LS2 or LQ4 and a PT88 when I put my LS1 that's in my SS in my S-10 and sell the PTE76GTSH I have now.
I had heard that was about the perfect C.I. for the size turbo I wanted to run(88mm Billet wheel etc.). I don't think having a lower CR bigger C.I. motor will hurt you all that much with a 88mm turbo. I bet you could make an easy 1200-1400hp with the right turbo.
I had heard that was about the perfect C.I. for the size turbo I wanted to run(88mm Billet wheel etc.). I don't think having a lower CR bigger C.I. motor will hurt you all that much with a 88mm turbo. I bet you could make an easy 1200-1400hp with the right turbo.
06-26-2011, 01:59 AM
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Depends on what classes I am looking at.
118mm in Outlaw DR
98mm in Bounty
88mm In Wild Street and X275
As far as competition, BBC's with Dope, SBC's with F1's, SBF's with 88mm and 98mm, and everything in bettween.
My car is long term. Not alot of time to work on it. I will probably buy a Turn Key NA car to beat on for stress relief.
118mm in Outlaw DR
98mm in Bounty
88mm In Wild Street and X275
As far as competition, BBC's with Dope, SBC's with F1's, SBF's with 88mm and 98mm, and everything in bettween.
My car is long term. Not alot of time to work on it. I will probably buy a Turn Key NA car to beat on for stress relief.
06-26-2011, 08:34 PM
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A F1r will easily go 4.90s 2 5.0s in the eighth and they have been 7.54 in the 1/4 on 275 hoosiers. Plus you don't gotta worry about the gay spool time of a turbo or the boost controller. Just use your big stuff 1st gear retard 2 control power on the hit. Plus a blower car sounds way more bad ***. Procharger and vortech have been killing it in nmra and nmca.
06-27-2011, 05:38 AM
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There ain't anything easy about running 4.90-5.0's on 275 radials, no matter what power adder you use. The guys running 4.90's with F1-R's have ALOT of testing and R&D in their entire setups to be able do that.
If you have your **** together there really isn't much if any "spool" time with a turbo car.. most blower cars are using a 7531 box for power management and some of them are using a wastegate and boost controller as well.
If you have your **** together there really isn't much if any "spool" time with a turbo car.. most blower cars are using a 7531 box for power management and some of them are using a wastegate and boost controller as well.