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06-17-19, 07:51 PM
Replies: 17
Views: 777
Posted By Howard Coleman CPR

don't have an answer for the no start but may be...

don't have an answer for the no start but may be of some help as to ECT. i ran, like most, around 87 C on the street. this was w a 2 inch alu radiator, single turbo setup. i recently swapped in a...
06-17-19, 11:19 AM
Replies: 10
Views: 383
Posted By Howard Coleman CPR

"You're going about things in a very good manner;...

"You're going about things in a very good manner; thoughtful decisions, modest mods, asking the right questions"

i second that...

wherever possible i think "simple" wins. sure you can possibly...
06-06-19, 10:31 AM
Replies: 8
Views: 1,180
Posted By Howard Coleman CPR

"Bridgeport shifts power higher in the rpm range....

"Bridgeport shifts power higher in the rpm range. That's the opposite of your quest for no lag"

by increasing the amount of time both the intake and exhaust ports open you get intake dilution and...
06-05-19, 08:31 PM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

" liquid CO2 for intercooler spraying" super...

" liquid CO2 for intercooler spraying"

super cool... i would love to know what you are getting for IAT. getting IAT down is gold for 2 reasons:

more oxygen into the motor = more power

cooler...
06-05-19, 09:37 AM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

"Looks good, but Is that a plastic tank?" ...

"Looks good, but Is that a plastic tank?"

great question as we are dealing w fuel and it is in the cockpit. having really raced for 22 seasons i am quite aware of fire protection. SCCA requires a...
06-03-19, 08:59 AM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

"Where do you have your methanol tank mounted...

"Where do you have your methanol tank mounted Howard?"

https://imagizer.imageshack.com/v2/xq90/924/79jIhn.jpg (https://imageshack.com/i/po79jIhnj)
The AI tank equation changes with 100% methanol....
05-24-19, 07:07 PM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

Copeland, thanks for the additional info. it...

Copeland, thanks for the additional info. it certainly is possible that a particular apex seal might solve the wear issue.

since my interest is 600 or less i can get what i need with gasoline and...
05-23-19, 03:29 PM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

i do completely agree on the Super Seals but they...

i do completely agree on the Super Seals but they were what the customer wanted. the other seals are certainly softer and the degree of degradation seemed to line up primarily with mileage rather...
05-23-19, 10:04 AM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

"You didn’t answer the question." questions...

"You didn’t answer the question."

questions

what seals are you running?

what premix and ratio are you running?

Copeland, just so you are clear i, and i assume others, are looking for...
05-22-19, 11:47 AM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

"E85 definitely is not the cause of the rotor...

"E85 definitely is not the cause of the rotor housings being torn up."

"most likely caused by the apex seal choice and/or inadequate lubrication"

since you have all the answers, how about being...
05-16-19, 09:03 AM
Replies: 8
Views: 1,007
Posted By Howard Coleman CPR

"I'd swap the ecu. It was decent a long time ago....

"I'd swap the ecu. It was decent a long time ago. A 3 rotor deserves better now. Keep it protected with fail safes."

regardless of what is currently going on i strongly suggest you enter the 21st...
05-09-19, 07:00 PM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

it is possible that the harder OEM seals work O K...

it is possible that the harder OEM seals work O K w E85. they don't work O K when you have knock. of course none of us will ever encounter knock.
05-09-19, 07:05 AM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

the motors had Goopy, Super Seals and Rotary...

the motors had Goopy, Super Seals and Rotary Engine seals, there was no difference. i would never run OE seals in a anything but a stock motor as they are too brittle and break with knock taking out...
05-08-19, 07:37 PM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

here's 585 rwhp on 93 pump and 900 cc of...

here's 585 rwhp on 93 pump and 900 cc of methanol...no knock, no drama. alcohol used right, only when needed.

https://imagizer.imageshack.com/v2/xq90/921/dl2IXs.png...
05-08-19, 07:07 PM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

good question. no motors were run w the...

good question.

no motors were run w the OMP/external oil pump...

BTW, was talking to Cam Worth this afternoon... i asked him what his experience was w E85 motors and his direct quote was...
...
05-08-19, 03:16 PM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

one valuable observation is that gasoline does...

one valuable observation is that gasoline does not in any way dissolve the tar.

the only liquid i found that made even the slightest dent in the tar was... penetrating oil. so i doubt that the tar...
05-08-19, 08:21 AM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

gasoline and Walmart 2 cycle as premix. 1 oz...

gasoline and Walmart 2 cycle as premix. 1 oz street, 1.5 oz track.

during the 4 years compression rose about 15%. the reason i decided to disassemble it was to see how much sideseal clearance had...
05-07-19, 02:42 PM
Replies: 81
Views: 9,973
Posted By Howard Coleman CPR

one of my 13B-rew motors is running in a miata......

one of my 13B-rew motors is running in a miata... around 400/500 rwhp.

we faced, of course, the same problem. the answer is to put the radiator in the trunk.

more rear weight too. bonus
05-07-19, 12:25 PM
Replies: 39
Views: 3,486
Posted By Howard Coleman CPR

The most powerful 2018 Supercars generate less...

The most powerful 2018 Supercars generate less Combustion Chamber Heat (CCH) and Combustion Chamber Pressure (CCP) than most single turbo RX7s.

Rear Wheel Horsepower per Cubic Inch Displacement
...
04-30-19, 08:12 AM
Replies: 6
Views: 946
Posted By Howard Coleman CPR

doesn't Haltech have a starter map? pls...

doesn't Haltech have a starter map?

pls describe the setup on the car and if possible include an engine bay picture and we will get you up and running properly.
04-28-19, 01:39 PM
Replies: 6
Views: 946
Posted By Howard Coleman CPR

one response and 318 reads to someone looking for...

one response and 318 reads to someone looking for help?

while many would conclude everyone likes to keep their cards close to their vest the more accurate reason is that many who have worked their...
04-23-19, 07:23 PM
Replies: 12
Views: 1,464
Posted By Howard Coleman CPR

thanks for the sptronics info. i prefer the...

thanks for the sptronics info. i prefer the Exhaust Gas Technologies amp as it is more compact and i just need the conversion.

yes, i am still using Exhaust Gas Technologies (EGT) probes and they...
04-23-19, 09:58 AM
Replies: 12
Views: 1,464
Posted By Howard Coleman CPR

"Air temps at there highest point under boost...

"Air temps at there highest point under boost were 122 degrees."

i do agree that 122 is O K at 28 psi.

the question is: is your data lagged?

this is an important consideration as low IATs...
04-22-19, 10:18 AM
Replies: 12
Views: 1,464
Posted By Howard Coleman CPR

thanks for the post and info on one of my two...

thanks for the post and info on one of my two favorite SX-E turbos. it appears you pretty much got what it can give as i have it at 655 based on the efficiency plot and 670 based on stall rpm.
...
04-17-19, 09:19 AM
Replies: 20
Views: 2,040
Posted By Howard Coleman CPR

"What do you think about the 9280 on a 3 rotor" ...

"What do you think about the 9280 on a 3 rotor"

the 9280 is a 829 rotary rwhp turbo... maxxed out you would be at 552 2 rotor which is a reasonable rotary power level for longevity.

since the...
Showing results 1 to 25 of 463
 


 
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