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Re: What converters you guys using in 10 sec street/strip cars [Re: D-50] #2287866 04/14/17 08:57 PM 04/14/17 08:57 PM
Joined: Mar 2005 Posts: 546 Stuart FL M mercman1 mopar
mercman1 mopar M Joined: Mar 2005 Posts: 546 Stuart FL	My street 69 GTX is very similar to your RR. 493 with 11.4 compression. Pump gas set up. Eddy performers ported by Modern (325 cfm @ 600 lift) custom solid roller 620 lift and 260 duration. (car has power brakes that work perfect)MSD ignition, Street Dominator with a 4150 holley 1000 cfm carb. 3.73 gears, caltrack springs, bars and shocks on stock front and rear suspension. 3960 lbs with driver.275/50/15 Hoosier drag radial Car has gone 1.49 60 ft and 10.84 at 123.50. I broke a 10 inch Turbo Action twice! I talked to Paul and he recommended the tightest 8 inch because it had all the heavy duty internals. (remember we have HEAVY cars) It has been in the car since about 2004 with about 15,000 street miles and well over a thousand passes. Very easy to drive on the street. I launch off idle at around 1100 RPM. Nice street/strip converter. Oh yeah, this thing makes 494 RWHP

Re: What converters you guys using in 10 sec street/strip cars [Re: mercman1] #2287880 04/14/17 09:36 PM 04/14/17 09:36 PM
Joined: May 2009 Posts: 511 Temperance, MI 6 68 HEMI GTS OP mopar
68 HEMI GTS OP mopar 6 Joined: May 2009 Posts: 511 Temperance, MI	Originally Posted By mercman1 My street 69 GTX is very similar to your RR. 493 with 11.4 compression. Pump gas set up. Eddy performers ported by Modern (325 cfm @ 600 lift) custom solid roller 620 lift and 260 duration. (car has power brakes that work perfect)MSD ignition, Street Dominator with a 4150 holley 1000 cfm carb. 3.73 gears, caltrack springs, bars and shocks on stock front and rear suspension. 3960 lbs with driver.275/50/15 Hoosier drag radial Car has gone 1.49 60 ft and 10.84 at 123.50. I broke a 10 inch Turbo Action twice! I talked to Paul and he recommended the tightest 8 inch because it had all the heavy duty internals. (remember we have HEAVY cars) It has been in the car since about 2004 with about 15,000 street miles and well over a thousand passes. Very easy to drive on the street. I launch off idle at around 1100 RPM. Nice street/strip converter. Oh yeah, this thing makes 494 RWHP Wow, extremely similar car/combo. That's good to know an 8" works in your car. That's the info I was hoping to find. Thanks! 68 Dart GTS "HEMI" 10.30 @ 131 pump gas street car 3780# 69 Roadrunner 511 six pack 10.92 drive to track street car

Re: What converters you guys using in 10 sec street/strip cars [Re: 68 HEMI GTS] #2287938 04/14/17 11:17 PM 04/14/17 11:17 PM
Joined: May 2009 Posts: 511 Temperance, MI 6 68 HEMI GTS OP mopar
68 HEMI GTS OP mopar 6 Joined: May 2009 Posts: 511 Temperance, MI	Lots of great info guys!! Thanks for the replies. I have some good info to base a decision on. 68 Dart GTS "HEMI" 10.30 @ 131 pump gas street car 3780# 69 Roadrunner 511 six pack 10.92 drive to track street car

Re: What converters you guys using in 10 sec street/strip cars [Re: 68 HEMI GTS] #2287968 04/14/17 11:59 PM 04/14/17 11:59 PM
Joined: Mar 2005 Posts: 546 Stuart FL M mercman1 mopar
mercman1 mopar M Joined: Mar 2005 Posts: 546 Stuart FL	My tight 8 inch TA converter will flash to maybe 34-3500. car would be faster with more stall. then more gear, then less weight, then???? Not a street car any more in my eyes.

Re: What converters you guys using in 10 sec street/strip cars [Re: 68 HEMI GTS] #2288003 04/15/17 01:07 AM 04/15/17 01:07 AM
Joined: Jan 2005 Posts: 3,699 Newport, Mi Evil Spirit master
Evil Spirit master Joined: Jan 2005 Posts: 3,699 Newport, Mi	I probably have the only GER Thunderbolt 3500 stall converter that GER got right! For a 904, no less. I did crack a pump drive, which I got replaced with a chrome-moly one, but my lowly GER has went 30K+ street miles and at least 400 low 11 second motor passes, plus a handfull of 10.60 at 130 - 1.42/60' passes on a 100 shot. 360LA engine, low gear set 904, 3.89 gears, 3150 race weight. I think they called it a 3500 stall 9 3/4" - I can usually hold it to about 3800-3900 on the line. I've tried 2 other "name brand" 9 1/2" 3500 stall converters, and both were tighter at idle and slowed the car down about 3 tenths. I know the next pass may be it's last, but it was the best $269 I ever spent on race car parts. We bought 2 more of them after I bought mine and GUTTED them in 12.50 cars! Free advice and worth every penny... Factory trained Slinky rewinder.........

Re: What converters you guys using in 10 sec street/strip cars [Re: nss guy] #2288044 04/15/17 02:36 AM 04/15/17 02:36 AM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	Originally Posted By nss guy ATI 8" Treemaster Do you drive it on the street with the 8" ATI converter ? Ron

Re: What converters you guys using in 10 sec street/strip cars [Re: 383man] #2288103 04/15/17 10:18 AM 04/15/17 10:18 AM
Joined: Nov 2013 Posts: 595 Nashville, Tennessee Tempest mopar
Tempest mopar Joined: Nov 2013 Posts: 595 Nashville, Tennessee	I used to drive my car on the street with 8" ATI. It's possible but probably would not do it again. I'm much happier with a 9 1/2" that flashes to 4,500 for street use.

Re: What converters you guys using in 10 sec street/strip cars [Re: Tempest] #2288110 04/15/17 10:37 AM 04/15/17 10:37 AM
Joined: Jan 2005 Posts: 1,466 malvern, ohio 3 3ddart pro stock
3ddart pro stock 3 Joined: Jan 2005 Posts: 1,466 malvern, ohio	I'm reading this post with a lot of interest. Only issue I see with the answers is we need a better description of street driven. I have a 3300 stall ati behind my hemi dart clone ( what they recommended) and it seems tight to me BUT my street driving is 20 miles of highway to get to car shows etc. I cruise at 3200 rpm at 60 mph and my concern is slippage then. Around town I would just stay out of high gear to keep the rpms up. Thoughts please! can 13

Re: What converters you guys using in 10 sec street/strip cars [Re: D-50] #2288112 04/15/17 10:52 AM 04/15/17 10:52 AM
Joined: Sep 2003 Posts: 19,383 north of coder moparx "Butt Crack Bob"
moparx "Butt Crack Bob" Joined: Sep 2003 Posts: 19,383 north of coder	does a lighter car [2000-2500, 500-550hp, 4.88 gear,33" tall tire] need a tighter or looser converter to be comfortable on the street compared to an all out track car ? i realize this is a stupid question, as there are no real concrete results to compare to, but a long, long time ago, i remember something about the weight coming into play as an important ingredient in determining stall for a light weight car. insights into this thought, and help for my stupidity ?

Re: What converters you guys using in 10 sec street/strip cars [Re: moparx] #2288143 04/15/17 11:57 AM 04/15/17 11:57 AM
Joined: Aug 2003 Posts: 4,976 new jersey usa 1 11secdart master
11secdart master 1 Joined: Aug 2003 Posts: 4,976 new jersey usa	Lenny at Ultimate, I have three of them done by him 68 Dart 410 / 904 92 D150 original owner 21 Ram 1500 Quad Cab, Big Horn , Hemi ,4x4 23 Audi Q5 16 Honda HRV

Re: What converters you guys using in 10 sec street/strip cars [Re: 68 HEMI GTS] #2288175 04/15/17 12:52 PM 04/15/17 12:52 PM
Joined: Jul 2004 Posts: 1,145 Arizona, USA gsmopar super stock
gsmopar super stock Joined: Jul 2004 Posts: 1,145 Arizona, USA	Another vote for the 9 1/2 ATI. I picked up a solid 0.30 in E.T. over the custom Gary Gonzales converter.

Re: What converters you guys using in 10 sec street/strip cars [Re: sixpackgut] #2288234 04/15/17 02:41 PM 04/15/17 02:41 PM
Joined: Jan 2003 Posts: 17,918 Akron, Ohio ProSport I Live Here
ProSport I Live Here Joined: Jan 2003 Posts: 17,918 Akron, Ohio	Originally Posted By sixpackgut That cracks me up. ATI flat out refused to build me an 8" for my BB 493 because I street drive my car. That's weird, they built my 8" converter for 25% street use, although it's been several years now. I always used 8" converters in my 9 second big block street cars. My current car is 95% street and I'm hoping to squeak into a 10.99 with a 9.5" Dynamic converter. 1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual

Re: What converters you guys using in 10 sec street/strip cars [Re: 3ddart] #2288236 04/15/17 02:44 PM 04/15/17 02:44 PM
Joined: Jan 2003 Posts: 17,918 Akron, Ohio ProSport I Live Here
ProSport I Live Here Joined: Jan 2003 Posts: 17,918 Akron, Ohio	Originally Posted By 3ddart I'm reading this post with a lot of interest. Only issue I see with the answers is we need a better description of street driven. I have a 3300 stall ati behind my hemi dart clone ( what they recommended) and it seems tight to me BUT my street driving is 20 miles of highway to get to car shows etc. I cruise at 3200 rpm at 60 mph and my concern is slippage then. Around town I would just stay out of high gear to keep the rpms up. Thoughts please! What size case is your 3300 stall? I think you'll be fine, my 9.5" Dynamic is kinda loose and I drive it around town with 3.23 gears, on the highway I'm around 2450 RPM's at 60mph. 1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual

Re: What converters you guys using in 10 sec street/strip cars [Re: 68 HEMI GTS] #2288241 04/15/17 02:49 PM 04/15/17 02:49 PM
Joined: Jan 2003 Posts: 17,918 Akron, Ohio ProSport I Live Here
ProSport I Live Here Joined: Jan 2003 Posts: 17,918 Akron, Ohio	I drove this car quite a bit on the street with an 8" ATI custom Treemaster and 4.30 gears. 1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual

Re: What converters you guys using in 10 sec street/strip cars [Re: 68 HEMI GTS] #2288257 04/15/17 03:09 PM 04/15/17 03:09 PM
Joined: May 2008 Posts: 5,399 Aurora, Colorado 451Mopar master
451Mopar master Joined: May 2008 Posts: 5,399 Aurora, Colorado	Ultimate Converter built me a tight 9" converter that is great on the street, but will flash stall to about 5,000 rpm. For the track it is likely too tight to really hit hard (foot brake racing), but I wanted it tight so it drive nice on the street, which it does.

Re: What converters you guys using in 10 sec street/strip cars [Re: 383man] #2288409 04/15/17 08:45 PM 04/15/17 08:45 PM
Joined: Sep 2006 Posts: 1,442 central ohio N nss guy pro stock
nss guy pro stock N Joined: Sep 2006 Posts: 1,442 central ohio	Originally Posted By 383man Originally Posted By nss guy ATI 8" Treemaster Do you drive it on the street with the 8" ATI converter ? Ron yes I drive it on the street, not too much anymore. My street tires, 30x13 ET streets are about shot. The car drives very good with the 8", not much different driving in town than my 10" tci from years ago. The big difference is when you really launch it, yea it flashes to about 5400.The 10" just doesn't flash as high. No heat problems with a good cooler.

Re: What converters you guys using in 10 sec street/strip cars [Re: 68 HEMI GTS] #2288413 04/15/17 08:55 PM 04/15/17 08:55 PM
Joined: Mar 2009 Posts: 2,461 Sydney,Australia tex013 top fuel
tex013 top fuel Joined: Mar 2009 Posts: 2,461 Sydney,Australia	Though you disavow Dynamic/Lupo that is what i have run for 7 (?) Years or so . Daily driver / bracket racer . It is a 5100 stall , i think 9 1/2" maybe 9 Has gone from low 11s behind a 440 to mid 10s behind current 505 I do around 6-8000 street/highway miles per year, and race monthly . Longest 1 way trip was 12 hours straight , race and then back . I wish there was more racing here . Tex New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive

Re: What converters you guys using in 10 sec street/strip cars [Re: 68 HEMI GTS] #2288427 04/15/17 09:23 PM 04/15/17 09:23 PM
Joined: Apr 2011 Posts: 319 jonestown,pa D dmking enthusiast
dmking enthusiast D Joined: Apr 2011 Posts: 319 jonestown,pa	i live in pa not too far from GER and Dynamic. had a GER and don't know if they are still around. i have the dynamic in for a while now in a low 10sec duster with a 440. it flashes around 5200 to 5400. no issues and i just had it updated after it was about 6 years old. only thing i can compare it to is the GER and well i'm sure the ger would slow my car down but i neverbroke it. and i call it old faithfull.

Re: What converters you guys using in 10 sec street/strip cars [Re: dmking] #2288722 04/16/17 12:26 PM 04/16/17 12:26 PM
Joined: Jan 2003 Posts: 1,807 North Dakota Azzkikrcuda top fuel
Azzkikrcuda top fuel Joined: Jan 2003 Posts: 1,807 North Dakota	Been using 10" Turbo Action and 9.5 PTC convertors. No problems with either. The only Carbs I care about are under the hood!

Re: What converters you guys using in 10 sec street/strip cars [Re: nss guy] #2288744 04/16/17 12:46 PM 04/16/17 12:46 PM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	Originally Posted By nss guy Originally Posted By 383man Originally Posted By nss guy ATI 8" Treemaster Do you drive it on the street with the 8" ATI converter ? Ron yes I drive it on the street, not too much anymore. My street tires, 30x13 ET streets are about shot. The car drives very good with the 8", not much different driving in town than my 10" tci from years ago. The big difference is when you really launch it, yea it flashes to about 5400.The 10" just doesn't flash as high. No heat problems with a good cooler. Thanks. Ron

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